Oval chain ring MTB Test vs round chainring. You WON'T Believe it!

[@shredder1966]

I went to an oval chainring 2 years ago on my Trek Ex and I can honestly say it is so much more efficient than the round chainring. There are no dead zones in the revolution like there is with a round chainring especially when climbing. You feel engaged the entire revolution. It is much more efficient. Period. I've been riding for 30 years and this is one of those upgrades that makes a huge difference.

[@TrailBreaker]

100%👊

[@13massfreeman42]

I had the same feelings, when I installed oval it was like another bicycle better then my))

[@1ledp621]

Hey I have a 2018 Trek Fuel EX ... I want to buy the absolute black oval chainring 32t but my worry is the 3mm offset .. will it hit the frame ???

[@aaronkarr9430]

@@1ledp621 I do as well and the stock chainring has 3mm of offset. I believe that with an oval chainring, you use the same amount of offset as the round ring.

[@1ledp621]

BBQ & Brews correct ! Bought one and been running for about a weeek ! 3mm offset it is

[@downtoridemtb]

Well there another thing on my parts wish list! Thanks for the comparison.

[@TrailBreaker]

Down to Ride MTB Definitely do it!!!! Can’t believe I waited so long👊🏻

[@alansmithee183]

I just switched to an oval ring and I'm never going back to the traditional rings! The sensation while climbing was fantastic, no lurching or pedal bob. The rear wheel felt like the traction was better since I wasn't bearing down and torqueing the wheel in spurts. Even on flat ground the difference felt amazing. I truly don't understand why this isn't just standard on bikes now.

[@TrailBreaker]

Agree 100%

[@alejandrosotomayor6081]

Do you clipless or flats?

[@alansmithee183]

@@alejandrosotomayor6081 I clip in

[@jbdbsb]

I just swithed to oval. It felt like had a slight assit going on, like a mini motot. very smooth pedaling

[@kayakutah]

I went to an oval chainring and didn't notice much difference initially. After a season on it, I went round while I was waiting for a new oval and really noticed that! I could feel the reduction in climbing traction on the round. My times are about the same on both, but I think the oval is a bit easier on my knees and transmits torque more uniformly. After going back to round and disliking it, I'll stick with oval.

[@TrailBreaker]

kayakutah I like to compare stuff (as you can see😊). I may try the round in a few months to see if I see similar results

[@YavorM-Yash]

On my new bike, which I have completed two months ago, put an oval. I didn't notice ground breaking change, but was climbing more effortlessly. Even my riding buddies mocked me wether I put an e-motor on the bike.

[@jamesmcpherson3924]

It's all about uniformity through the pedal stroke!! This is especially true for climbing traction.

[@erlihoxha]

Ok thats it, you made up my mind. Ordering oval right now.

[@TrailBreaker]

I think you'll be happy

[@Jlymansackhead]

I recently changed to a single, oval chainring on my Scott Scale 720, and I have experienced the same thing on climbs. It’s much more efficient, so long as I kept up momentum. I also found that I was able to use a much wider range of gears for climbing, when my speed was already up going into the climb. It changed everything for me.

[@TrailBreaker]

👍🏻. I can definitely punch a harder gear with the oval and find it easier to keep speed during short Ups and downs

[@rubis915]

Been using 34T front. 34T on the back Changed to 32T oval. It felt like i have a 36T on the back. Yes, there something like an assist on pedalling. Great Review! Stay Safe!

[@austinado16]

Great video and comparison, thanks for putting it all together. I'm a little late to the party, but like you, I have a bike that I really like, that I'm converting into a better climber. Just had a local shop change it from its 1x9 DH gearing, to 30Tx11-48T as a 1x10. So now it climbs great. Just stumbled upon a forum with people talking about oval chain rings, and thought that would be a great upgrade, to my new drivetrain. My very first MTB back in '87, when I was in college, was a Jamis Dakota with Shimano's new "Bio-Pace" front chain rings. It was amazing to ride up hill. So here I am, almost 58, and building something that'll climb the local rocky, technical single track and fire roads like a goat, and then come bombing back down. Update: I installed the Absolute Black 30T and it's transformed the bike. Where I used to just be stuck on the 48T, I can now sometimes shift one or two down from there. I'm very happy with the result!

[@TrailBreaker]

I found the same to be true. I thought I was in the granny gear after the swap and I'd look down and have one more gear! Glad you like it! I won't go back!

[@thim8009]

I've asked 30 year old super athletic mtber and he said it didn't matter that much. I'm older and always curious about oval. The vid you made did the absolute best job explaining oval. I'm not worried about speed just clearing things, but your faster times related to more performance and ease of use. Thanks for showing!

[@TrailBreaker]

Thim I think if you are REALLY fit and have a great pedal stroke (and especially if you ride clipless) the difference is smaller, for sure. I was shocked at the difference for an average rider like me. Glad you liked it!

[@Calfa2x]

@@TrailBreaker I believe that's the key, the average rider will feel the difference a lot more but someone who is used to put a lot of power all the time probably will have a less noticeable effect. It really feels like you can be in a higher gear with the same power, the biggest difference for me is when I pedal while standing on small climbs. The upgrade is relatively cheap and easy to do, totally recommended.

[@johnsplendido3556]

I change to an oval a little over a month ago. Feels like I have an extra gear for going uphill. And I have been setting personal bests on trails. Seems to be working for me.

[@TrailBreaker]

John Splendido I love hearing it! So it’s not it’s in my head😄

[@Stickymicky25]

I changed the other week, and totally loving it… definitely feels quicker yet easier on the knees on the uphills 👍🏻

[@TrailBreaker]

Since this video I’ve had a few more rides on the oval chainring. The results are confirmed! I’ve recently had PRs on sections that were 2 years old and I’m NOT in the condition I was in then. I DO ride flats and believe the benefits are greater there but I’ll never go back! I’m anxiously awaiting my Absolute t Black Oval for my Trek Fuel EX 9.8. It will be a rocket ship (for me, lol)!

[@italianrelic]

Trail Breaker which AB did you pick I have same bike?

[@TrailBreaker]

This one amzn.to/2X3VeXj 32 tooth

[@jowl2640]

One problem - if you happen to rip your derailleur off and need to go 1X1 I’m pretty sure you can’t - without a clutch the chain will fall off. So depending on where your ride ......

[@joeybellas5830]

@@jowl2640 Use a chain tensioner.

[@jowl2640]

Joey Bellas - so you pack a chain tensioner with you in case of emergency? I get the idea and think it’s great if you go to a single speed at home, but if you are out on a huge day - not sure I’d pack that - great idea though. My buddy who switched to an oval before a float plane trip in BC had his derailed hanger break - without a spare....this is how we learned how a oval did not equal a single speed - long walk out.......

[@dskordo]

Would love to see the same style of comparison with some power numbers. I've been curious about these for a bit. Thanks for posting btw.

[@jasonmateus924]

Oh well. That is the proof I needed. And I can't believe you would be so tired the week before as to not pedal as strong. 17%-27% is amazing

[@TrailBreaker]

Your mileage may vary😀 but I'll never go back!

[@gruensein]

I have ridden approx. 500km on my absolute black 34T and while I didn't time myself my experience was similar. Climbs just felt "easier". I do not think that it improves one's power output, though. It just makes it easier to spin steadily - particularly because I don't ride clips - which improves the efficiency in "getting your strength into your bike". It is hard to describe and I don't want people to expect wonders but in my experience, it has been one of the more noticeable upgrades to my bike so far.

[@TrailBreaker]

gruensein Exactly!

[@kinch04]

I put one on this winter... So far I can't tell any ride feel. The bent crank thing people talk about isn't there at all. I do notice the wind at your back thou. Best oval round comparison video I've seen yet. Well done and keep going with the videos. The only constructive bit I would give is jump in the action quicker and spend more time in it. New sub!

[@TrailBreaker]

Awesome, Thanks for the Sub and support!. Yeah, I went quite a bit longer on this one mainly because people, unfortunately, have a lot more time on their hands. Views and view time has really been up the last few weeks so...there you are 😀

[@ksodhi]

Totally agree with your conclusion. I've had ovals (absolute black) on my gravel bike (2x) and my trail bike (1x) for the past 3 years. It's subtle, but I feel that they smooth out power delivery, leveraging where I'm strongest and weakest in the pedal strokes. I've put my brother and riding buddy on them and they're also finding advantages in technical climbing with better stability and fewer tire spins.

[@TrailBreaker]

Kevin Sodhi I agree. Smooth pedal stroke means more traction in climbs plus I’m usually pushing a harder gear which helps too.

[@TrailBreaker]

Kevin Sodhi I agree. Smoother pedal stroke means less spin out and more traction. Plus I’m pushing a harder gear which helps too.

[@garybrown9719]

I put oval rings on my mt bike 5 years know no more knee pain. I want to try on a single speed. I stay setted 90% or sone times 99% I run 2.8 29er tires we have sand and rocks here in eastern Oregon

[@TrailBreaker]

In case you're curious, I put one on my old single speed bike. Here's the video kzbin.info/www/bejne/gGnbqa2sqJ6Je7c It's a lot of fun!

[@RGCastro7]

Good video! I've been using AbsoluteBlack ovals since 2017 and now have them on all my bikes. Much friendlier on the knees, stays on top of the gears better, improves traction, and leaves me with less residual fatigue in my legs after long climbing days.

[@TrailBreaker]

RGCastro7 For sure! Thanks👊🏻

[@usual_perfect_stuff]

AbsoluteBlack is far too expensive and overrated ... I know a brand that produces oval gears much more durable and cheaper

[@nathanielluke2084]

@@usual_perfect_stuff do share

[@generalrepair8731]

Good evening, Trailbreaker. At the end of your video, you asked people to share my experience. I’m just wondering why I didn’t switch to an oval chain ring sooner. I spent too much of money and I’ve upgraded all my bikes to one by 10 1 x 11 and one by 12 and, I did my oldest bike first my specialized stumpjumper. I took it out on the road to go call a customer and I was astounded with the feeling on my pedals. It’s kind of hard to explain. I guess I could explain it to you like a perpetual pump in the gym when you’re working out. Just amazing. Thank you for this video. I’ve told you about everybody. I know mountain bikes about the oval chain rings. Most of them have switched over. Some of them are insisting on not touching the train.

[@gofishyfishy]

I've riding a oval chainring for about a year now. It was a bit weird at first, but I feel like I was able to climb stuff that I usually wouldn't get through; but not sure if it was just fitness. My bike broke down and I've been riding my wife's bike this last week with 3 (round) chainrings and couldn't get through the same stuff I used to be able to seemingly easily get through on oval. So I've just bought another oval and converting the whole family's bikes to oval. Makes a huge difference. With a transition to one-by drivetrains, seems like a no brainer to use an oval narrow wide.

[@TrailBreaker]

I agree...obviously 😀

[@Evertb1]

A long time ago I had the displeasure to ride with Shimano Biopace on my road bike. Biopace offered oval chainrings as well but with a complete different timing, geometry etc. It was not a good experience at all, even causing some knee problems. So when ovals where introduced for MTB's I was a bit sceptical to say the least. About a year ago I bought a new MTB that was equipped with a 2 x 11 drive train. I used it for about three months and then decided to turn it in to a 1 x 11 (freeing up space for a dropper post cable). Pretty easy to do with my Raceface crank and its direct mount. In the mean time I had been reading a lot of resources about modern ovals and decided to try one. I am very pleased with the result. On all the tracks I ride on a regular basis I improved my personal best, sometimes even without really trying. And while the MTB still offers me a great workout I really have more fun doing it.

[@TrailBreaker]

Evertb1 I’ve heard that same thing before about Biopace chainrings. Never tried one though. Your results seem pretty similar to mine👊🏻 Thanks!

[@NOIS_inks]

I’m so glad I’m making this switch. All these years feeling dependent on the 3 for no reason.

[@peterlewis2255]

I round a round ring bike today on same (road) route as I did last week on my AB ovals. Slightly heavier, less stiff bike with the round and temperature was lower....but similar number of teeth and similar perceived effort. Oval was 2.5kph faster.

[@TrailBreaker]

Peter Lewis WOW! That’s pretty significant! Thanks 👊

[@jeseliironman712]

Had them installed in all my bikes and never looked backed as there is difference in climbing. It still boils down to the rider though!! 😂 😂

[@TrailBreaker]

Agree 100%. Still won't climb by itself 😀

[@s14tat]

Steve you ain't kidding. I got to my local trails finally and I set 11 new pr and 5 others was 2nd or 3rd fastest. Those old pr was set by me resting and then going ham in that one section for the sole purpose of setting the pr. I was just riding today and I didn't even take any breaks. So you are right. I am fresher, smoother and faster. Like you these segments got like 30-40 attempts.

[@TrailBreaker]

Wow! That's amazing! Just imagine what'll happen when you go all out! I thought to myself, "Is this what it feels like to be fit!" Can't wait to check it out when my chainring comes for my Trek Fuel. That's the bike my past PRs were on 👊

[@s14tat]

At this point I think my cornering skills is what is holding me back. I am hitting the corners at a faster speed and I had some close calls with trees. These are in the tight technical flat corners with roots or log roll overs thrown in right at the Apex of the corner. Actually bashed my chainring from the added speed. Thank goodness for the bash guard. I have never hit it that hard before

[@TrailBreaker]

s14tat You just leveled up!

[@jamesmcpherson3924]

what you said about "get to a place where you can shift" is very true with oval rings. Your chain is slower per gear during top dead center / bottom dead center when the chain tension is lower. The chain actually has a way better chance to climb up the cassette with an oval ring. They actually reduce your power when your weight is over the pedal, but that tends to help increase your grip during climbs and thus smoothness and confidence.

[@TrailBreaker]

James McPherson Well said👊🏻

[@TrailBreaker]

U.S. Constitution 👊🏻

[@jamesmcpherson3924]

@U.S. Constitution While I believe climbing is much easier with oval chainrings, it is not because of leverage. A properly installed oval chainring reduces your leverage in the power stroke thereby smoothing out the transition through the pedal stroke. That evens out the power spikes that would cause your wheel to slip on an edgey climb if you had a round ring. The oval chainring allows you to select a lower gear than you would other wise be able to spin, and keep very consistent maximum speed and grip the whole time. Just trying to help explain a common misconception about why oval chainrings work. Oval trades leverage for smoothness and smooth is fast.

[@niccubagonoc9907]

Awesome! Love this type of comparison! You earned yourself a new subscriber!

[@andrewyankee9862]

have been wanting better acceleration and hill climbing ability for my budget gravel bike. im going for a smaller oval chainring now you made up my mind!

[@TrailBreaker]

I think you'll be happy with it!

[@csarpalace1518]

6months. I just saw my old message. Finally picking up my hardtail tomorrow. Brand New oval 32t chainring. Doing an easy night ride. CANT WAIT!

[@TrailBreaker]

Sweet!

[@Healthygreenwater]

Great idea for a video! I was skeptical of the oval ring , but after watching your video I plan on riding with it more often for sure. Thanks!

[@TrailBreaker]

Glad it was helpful! I'll never go back😀

[@chrisfoster3772]

"more often" What, are you swapping chainrings between rides?

[@Healthygreenwater]

@@chrisfoster3772 No, but if I was would that be a problem?

[@chrisfoster3772]

@@Healthygreenwater lmao no it would not be a problem. Just the way you worded it made me wonder. If you do do that, more power to you , I could understand why. Just seems like too much of a PITA in my book but to each their own, nawmsayn?

[@chrisfoster3772]

@@Healthygreenwater but if I did have a problem with it, would it be a problem?

[@spliffcrabby4318]

Probably the best side by side comparison

[@TrailBreaker]

Thanks!

[@HeimVordr]

Awesome comparison. I just got my absolute black delivered today. Thus video made up my mind to try one out. Same reasons I wanted to ride my Enduro everywhere, because it's the most fun on the downs. Hope I have the same results. Happy MTBing!

[@TrailBreaker]

Thanks, Trevor! And you as well. Let me know what you think

[@jackreoh]

Great video! Really makes me understand the benefits and I think I'm quite interested in one right now.

[@TrailBreaker]

cookizaa Thanks! It’s worth a try. I’m sold👊

[@markohakolahti7136]

Have been going with oval rings on my xc and trail MTB 's for years. I think it really makes a difference also on low traction climbs. Torg is less spiky and grip stays better, also noticeable on winter rides. I really noticed the difference when i had to go back to round. Swapped from XT to the XTR powermeter cranks and my absulete black ring would not fit .... the ride feel was greatly downgraded on offroad. I run all my road, dirt and DH bikes on round rings and i did not find egually big difference on road when tested ovals on roadbike.

[@TrailBreaker]

That seems to be the consensus from most riders. smoother power transfer on climbs especially with low traction

[@luminousfractal420]

curses at shimano for their wonky bolt patterns. annoys the hell out of me not being able to go shimano for the cranks unless i go with the one zee type model.

[@johnshanklin6633]

I had same experience. I was expecting to maybe feel something but it felt game changing. Smooth delivery no wheel spin on leaves going up hills. My advice switch to oval and go up two teeth and it will still feel easier.

[@byronlp]

Why go up two teeth? I’m currently riding with a round 30t chainring. I was thinking to switch to an oval 30t one. Why do you reckon it’d be better to switch to an oval 32t?

[@johnshanklin6633]

A 32 oval will still be easier than a 30 round and it will give you a bit mre speed on straightaway. So it’s a win win.

[@TheObserver567]

Oops. Just ordered a 28t. lol. Let’s see.

[@johnvmtb5440]

Thanks for sharing, I need to try it especially here in California our trails are mostly 50% uphill 50%downhill

[@TrailBreaker]

You should! Most seem to like it and feel a difference

[@philc9305]

You don't say.

[@joelibrary7359]

Great video! Goes to show that placebo really does wonders to your body

[@sigourneywhaynedavid4650]

really big help with the review, thanks a lot, ride safe always

[@chriskenth1192]

I think they run great. Have them on my road and xc bikes. They work best on a 1x system. When dropping off a 2x system on my road bike, I occasionally drop the chain when downshifting.

[@TrailBreaker]

Good to know!

[@TheJofrica]

Good to know, thanks

[@yukonpeteneff]

Cool ... I just bought an oval for my new Ripmo. Tried putting it on today but don’t have the wrench needed to pull the round ring off my cranks. So I’ll ride a few times with the round ring and when the wrench comes I’ll switch it over. I have never tried an oval before but with two knee surgeries in the last 18 months I bough it in hopes to make things easier on my knee. Maybe this will even make me competitive again??? We will see. Thanks for the video

[@TrailBreaker]

Yukonpeteneff I think it will help you. It feels like spinning and is just overall easier. Let me know what you think once you get it and try it. It’s probably good you will have to ride it with the round first so you’ll have something to compare the oval to 👊

[@LesterMultimedia]

You convinced me to buy one. Thanks for the video.

[@TrailBreaker]

You will love it👊🏻

[@cavemanluke6322]

My first test ride went very well, feels easier for the knees (what I was looking for), but I feel more powerful as well and I'm excited to see if I can pass my riding buddy on the climbs this weekend 😎

[@madcapx]

did you pass your riding buddy? What are your thoughts after 6 months?

[@cavemanluke6322]

@@madcapx The immediate effects were amazing, I am using higher gears vs round despite going up to 32T elliptical (from 30T round). Easy to keep up on the climbs and even pushing my buddy harder to keep up with me. Also, the new ring is MUCH easier on my knees, for which I am overdue for surgery on both. All I can say going into my second season with this chainring is: if you try it and aren't blown away by the performance gains, you are probably in amazing shape and like the abuse of a round ring. Try an oval ASAP

[@madcapx]

@@cavemanluke6322 thanks man for replying! I will get the absolute black one.

[@destinhook3826]

@@cavemanluke6322just what I needed to hear with a torn meniscus

[@maximo90019]

Excellent effort to measure and demonstrate the impact!!!!

[@TrailBreaker]

Thank you very much! I know it's NOT scientific but I'll never go back!

[@CAPRAQUEENRC]

I went to oval not long ago and the improvements were amazing ❤️ an absolute must in my opinion

[@TrailBreaker]

Yeah, I can't go back now.

[@StuartKerrison]

Encouraging to hear your thoughts. My 30T chainring is totally worn out and the guy at my LBS convinced me to change to an Absolute Black 32T oval. Now I'm really excited to try it out.

[@TrailBreaker]

I think you'll love it. Going oval ends up feeling like you have a smaller chain ring so it may feel the same.

[@jerryx2000]

Hi mate I have a 1x11. Can I just replace from round to oval or do I have to modify the chain & adjust the rear derailleur?

[@TrailBreaker]

As long as your new Crain ring is the same tooth count just swap it. If you go smaller, as in 32 tooth round to a 30 tooth oval, you’ll need to remove a couple links. No adjustments needed for the derailleur

[@csarpalace1518]

that's it. switching to Oval!. thank you

[@TrailBreaker]

You’re welcome! You’ll love it!

[@Staindsoul4life]

Excellent comparison video, I dare say one of the very best in this category. Very well done and incredibly convincing. Got my Wolf Tooth Elliptical Chain ring waiting at home to install and shred some trails. Thanks for the video!

[@TrailBreaker]

Awesome, thank you!

[@dixieloucarter3302]

I have been debating with myself about getting an oval chainring. After seeing this I am pretty sure that I will go ahead and get one. Thanks

[@TrailBreaker]

Go for it! Hope you like it👊

[@onlinebikecoach4213]

I have been a huge advocate for, first the Rotor RSX system (2001), and then the Ovalized chainrings, since the early-to-mid 00's. I was able to quantify that, while they may not make your pedal stroke actually that much more efficient - what they DO actually do, is provide more instantaneous torque, which makes for more watts when it matters. So it's not more efficient - it just gives you the ability to apply torque more quickly, in the most powerful location on the pedal stroke. Buy a Rotor PM and you'll be able to actually see it in real time (I worked on this back in the old CompuTrainer days with SpinScan). I'd say it's worth - what - 2-3 chain links per entire chain revolution? Not much, but it does add up.

[@TrailBreaker]

Thanks! That makes sense. No matter how good your stroke is you still apply MOST of your power during 2 small parts of every revolution. I think an oval extends those 2 peaks so they aren't separated by as much.

[@rafacabanillasmurillo7110]

The other day I tried a bike with an 2x oval system and the sensation was amazing. It was super smooth, and I know why. It's because when you take the round chainring, each time your leg goes down, you notice the bum bum bum, on each pedal force. N W *---E-------crank------= S ** The pedaling is clockwise, because this is the right crank. That means, that the crank FALLS faster in those intervals. Here is where you notice that bum, bum, bum, bum, bum, and that the pedaling with a round chainring is not totally round. (Don't criticize me, it's hard to explain by words, just try to imagine more or less what I say). In contrast, with the oval one, you will notice that the crank will feel slower in that interval (from east to south). But in the dead point, (from north to east) the gear is lower (softer). So that means the cranks will go faster in that interval, which is the dead point. This is why you get the round pedaling feeling here. Because in the first interval you don't notice that fast fall of the cranks. And the dead point is reduced. You will feel this specially with the automatic pedals, because if you have an oval chainring, when you go from the position south to west, which is when you pull the automatic pedal upwards, in that interval the oval chainring will soften the gear and you will feel that round pedaling. However, I only tested it one day and at first, it's true. It feels a bit weird. But it feels like you were pedaling on a cloud. I don't know if I explain myself. But you feel it's more efficient. See this video I found to understand everything I explained: kzbin.info/www/bejne/jamkmnasrshgfNk I also have to say that you shouldn't do this in a 2x system because it seems it works but the one and only day I mounted that bike with 2x by system, when I shifted from the small plate to the big one, the chain got stucked in the front derailleur and I had to stop or I would have destroyed the chain and fell.

[@jimmyhor78]

Excellent video! What camera are you recording with on the bike?

[@TrailBreaker]

Thanks! GoPro Hero7Black in a chin mount

[@tomastourikis5423]

Just ordered an oval ring, can't wait to try it out!

[@TrailBreaker]

How do you like it?

[@tomastourikis5423]

@@TrailBreaker I love it, I'll never go back.

[@dadventuretv2538]

Thanks, great vid. I’ve been thinking of an oval for my Bronson V3. I think you sold me. Your trails look pretty similar to mine. What part of the country you in?

[@TrailBreaker]

I appreciate that! I'm in North Georgia.

[@dadventuretv2538]

Trail Breaker im in DC. Pretty similar topography. I also ride in the Appalachians a lot bc I have a place in the mountains.

[@TrailBreaker]

DADventureTV Sweet👊

[@s14tat]

Great clip. I always wanted a oval ring but wasn't sure if it was snake oil. Your method of demonstrating the difference sold it. Now I normally run a 30t round. I have never needed another gear. What do you think about going 32t oval for more speed? I also think you werent experienced enough to appreciate the difference when you had it on your 27.5

[@kinch04]

I did the same thing.. I almost with I woulda gone 34 oval. So far it feels amazing.. my brain is saying don't go 30 oval

[@TrailBreaker]

I know it made peddling easier on my old bike but you're probably right about not knowing enough at the time. I would definitely go 32 tooth. By swapping a round 32 for an oval 32 I'm now using at least 1 gear harder pretty much everywhere and more on climbs.

[@s14tat]

@@TrailBreaker I just pulled the trigger on the 32t and ordered it. Can't wait to level up on Strava.

[@TrailBreaker]

You WILL! The trail in the video is called Copper Head and is 3.6 miles of up and down. My PR is from 1.5 years ago at 24:38. Recently I've been averaging 27:20 ish. If you saw the "Enduro vs Trail bike" video from 2 weeks ago I did 27:20 on the trail bike and 27:26 on the Enduro. During the ride where I shot THIS video I did it in 26:01! Yesterday I rode it to see if it was a fluke and did a 25:02...3rd best for me...on a 32 lb enduro bike! When my oval shows up for the Trek Fuel it's gonna feel like an EBike😀

[@s14tat]

@@TrailBreaker yeah man can't wait. You were the push I needed to follow through with buying this thing. Also I thought you were selling the trek? Come and join the hardcore hardtail family.

[@TomBartelli]

Amazing video! I think about going oval too. At the moment I am using a 32T round chainring, but I feel like I am running out of gears when climbing, so I wanted to switch to a 30T round. So what do you think, should I get a 30T oval then, or are the improvements of the oval that much that I can go with a 32T oval?

[@johnshanklin6633]

I switched from a 34 round to 36 oval absolute black and I feel I could maybe even go to 38. 36 oval rode easier than 34 round and gave me an extra top gear for the straightaways. I would say only go to same size oval if you are struggling with the same size round going up hills.

[@smarty8772]

Just curious, assuming that you are Riding 1x drivetrain, were your chainrings both the same amount of teeth.. I'm going to put one on my MTB and just wondering if I should use the same teeth number's.. Great video too.. P.S I've not long put Rotor Q Ring's on my Road bike and love them..

[@TrailBreaker]

Thanks, M! I was able to use same size, 32 tooth. You'll need good clearance since a 32 oval need the same clearance as a 34 round. On my other bike I had to go with a 30 oval to not rub the CS.

[@OverTheHillMTB]

Have the Oval on Trail and HT bikes, big fan. And as my skills for climbing tough shit progresses, the oval helps even more.

[@TrailBreaker]

OverTheHillMTB Right on👊

[@AdlerMow]

What effect this have when combined with a 165mm crankshaft or shorter? I rode a 160mm on a friend's bike and it got me thinking if it would be a killer combo?

[@TrailBreaker]

Well, I eventually did go to 170mm cranks vs the stock 175s and it had a similar effect as the oval swap just not as much. I guess I really like to spin!

[@Peter-tc3ep]

Last year I tried oval chainring on my gravel bike, at first I felt it was great. After two months I switched back, in certain parts of my pedal stroke you feel like you have no power(dead spot) and when that hits at a crucial point you start to wonder if oval works for you. Wasn’t my cup of tea, but I know people who love them.

[@TrailBreaker]

I'm thinking of running one for a few months and go back to see if round has the opposite effect as trying oval. It might eliminate any placebo effect I had going oval since I'd had good results in the past. I love comparing stuff!

[@Peter-tc3ep]

Trail Breaker from my bike shop I was told it depends on how you pedal and if you use clipless pedals. What I found is trying to pull up on your pedals to use both forces when pedaling works better on round chainrings it if you only push down on your pedals or use flat pedals most people find oval works better. At least that’s from myself and my shops findings and the reason many professionals don’t use oval chainrings except for the becoming more rare mountain bikers who use flat pedals.

[@TrailBreaker]

Peter Choma Agreed. Everyone can use round and flat pedal users like me benefit most from ovals. Clipless riders may hate ovals but I don’t hate rounds. I just prefer ovel

[@luminousfractal420]

wonder if thats a brand issue...absloute black have a patent on the ring position and ive never felt a dead spot with em. maybe the other brands are forced to apply that dead spot?

[@Peter-tc3ep]

Luminous Fractal I tried the Absolute Black CX 1X Oval 110/4 BCD N/W traction 42t chainring. This was the only 1 by shimano chainring by them at the time. Not sure if they’ve added any yet, but didn’t work for me or a few others that I ride with. It’s been passed around now, no final taker yet. But I do have one friend that rides flats that swears by oval but he has a Garbaruk one, which I never heard before him, he stated he bought it instead of Absolute Black only because AB didn’t make a GRX or any 1 by Shimano chainring that would work at the time. But after seeing my AB chainring he likes how much better finished his Garbaruk one is.

[@jonathanzilliox3486]

Nice. Did you switch for the same T count or did you get a different size? If so, what was the change?

[@TrailBreaker]

On my Trek I had to size down for frame clearance with the chain stay. It's now a fantastic climber but I loose some top end. On the Kona I did swap out even

[@Asthbendriel]

What size was the round chainring and what drivetrain were you using? Haven't tried ovals yet, but if your round chainring wasn't that big, this is really interesting

[@TrailBreaker]

32 tooth round with an 11 speed Box 46 cog (11-46). Swapped to a 32 tooth oval.

[@GrayFox-xd9ww]

Good video man all other vids I watch it’s just them showing off their expensive bikes w chain ring. Gona order Friday 2x set for my gravel bike. Did u order off official absolute black site, how long it take to arrive?

[@TrailBreaker]

Amazon...pretty quick, 2-3 days? How does a front derailleur do with ovals?

[@GrayFox-xd9ww]

Trail Breaker they have 2x set up on amazon and the bolts?

[@corentinoger]

I'm yet to find a video on oval chainrings that is not sponsored by a manufacturer. I mounted a 32T Absolute Black on my trail bike, and while it does make steep climbs a little easier, I'm surprised by your results, mine are not as dramatic.

[@TrailBreaker]

Well, mine was not sponsored (just the Amazon Affiliate link that gives me some money) and I've bought three so far. Everyone's different and has different mechanics. I think the more experienced/fit you are the less dramatic the improvement. My strength and fitness are just ok so I really benefit from the quicker turn-over I get from ovals.

[@wessimpson2544]

Trail Breaker, I've been thinking maybe trying a oval since I've never tired one. I'm older rider in my 60's so I need a little extra help these days on climbs and tech stuff. I went earlier in the year from a low travel trail bike to a more full travel enduro which I love. It's an SCRAM eagle but it has a 32 tooth front round ring. I was thinking maybe a smaller round I did that on my last bike that helped a ton. Do you think I should do oval like 30 or stay 32. Also which one did you try? I've heard the most about absolute black. My bike has a front chain guard now which I doubt will work with an oval one too. Thanks, Wes

[@TrailBreaker]

I know of others who've been able to still use the chain guide. You might just have to find the sweet spot. On my Kona I was able to swap a 32 for a 32 oval. On my Trek I had to go down to a 30 tooth oval for chain stay clearance. That thing is a beast with a 30t oval and the 50t Eagle cog in back! Go with a 30. You'll loose a few MPH on the top end but I'm not peddling at 25 MPH anyway 😀 You'll love the easy climbing!

[@FoCoFlowShow]

I was skeptical at first until I went from an oval ring on my Slash to a 32t round when I got my Ripmo and noticed how much I struggled on climbs. As soon as I switched to an oval on my Ripmo, it solved the issue! I am a firm believer in the oval! Wolf tooth oval is my favorite of the few different ones I’ve tried

[@TrailBreaker]

I rented a Slash last year and I think it came with an oval. Is that right? For a 33 lb bike I remember it climbing pretty well. It would be interesting if a big company like Trek saw the benefit of oval will others follow? Because that's one of the arguments against them often. "If they're so great, why don't all bikes COME with them?"

[@FoCoFlowShow]

Trail Breaker no - I don’t think any production bikes come with an oval ring - the LBS probably built it that way for someone - Bike shops have to build bikes they sell for the masses - not everyone likes oval so they would run the risk of turning off some customers if they came stock with an oval... also cost - stock chainrings are cheap - keeps overal cost of the bike down

[@TrailBreaker]

FoCo FlowShow Yeah, I know. That’s why I was surprised to see it in a fleet rental. It was sweet though 😁

[@dkatz709]

Are you riding flats or clipless? I've heard the benefits are greater for flat riders, i ride clipless but am really curious about ovals.

[@TrailBreaker]

Flats. I believe you're thoughts are correct. The benefit is less for highly experienced riders and those clipless.

[@DethWshBkr]

I don't know if there are really a y "negatives" to the oval, but as a former oval rider gone back to round, I find round to be more efficient. Now, I ride clipless. It is my unprofessional but 25 years of riding experience, that a flat pedal rider will very likely see benefits of the oval, whereas a clipless rider will not As a clipless rider, if I need to accelerate faster, I can "simply" pull up on the one pedal, and push with the other. A flat rider CANNOT do that. The oval will help make your pushing only stroke easier to spool up, but as a clipless rider, I don't need that. So, flat riders - sure, go oval. Clipless riders? Meh. Stay round and keep the more consistent pedal stroke.

[@TrailBreaker]

I agree 100% I rode clipless for 20 years. I tried my first oval after switching to flats (wanted to push my skills on jumps and drops) and gained a lot of the efficiency (not all) I lost on flat pedals. For me it's the best of both worlds!

[@UnburdenedByWhatHasBeen]

Was it the same gearing though? Also i hear they are great uphill but cadence on downhill is hard to get the hang of.

[@AlmeraOllisor-pg4wr]

My legs and knees felt relaxed after using oval chainring.. crazy

[@GrantSpoon]

Great video, love your enthusiasm. Question... I'm currently using a 32 sprocket and feel like it's not enough on some steep climbs or when I just want to spin up a hill. Oval choices are usually 32 or 30. Would I regret going with a 30 oval? I spend more time in smaller gears than larger ones so figured that was the best choice.

[@TrailBreaker]

Thanks, Grant! When you say "more time on smaller gears" do you mean climbing? On my Kona, I swapped a 32 round for a 32 oval and it obviously made a big difference for me. On my Trek Fuel I had to go from a 32 round to a 30 oval for clearance with the chainstay. It's a pretty big difference because not only is it oval which makes spinning easier but it's smaller too. I can climb ANYTHING in the granny gear but I have definitely lost some top end peddling downhill. It's ok since I don't race and don't NEED to pedal over 25 mph :-) If you go with a 30, I had to remove 2 links from the chain. Let me know what you decide. Good luck!

[@GrantSpoon]

@@TrailBreaker so the big difference on your Kona... Elaborate please. Easier on hills? I want gearing where if I'm feeling tired some day I can granny gear spin up short steep sections easily. A 32 oval to me just means I have a longer stride in that bigger gear and less time in the smaller during the stroke. So I'm leaning towards a 30. I mean, I could climb any Hill out of saddle even in third rear gear, but it hurts and I have to get out of saddle. Thanks man.

[@OJesusX3]

@@GrantSpoon The shorter chainring will give you more low end torque. 😊🌎✨

[@jack91522]

Ive been using oval for over 3yrs and its good however it tugs at the derailleur a lot. Im not sure if there is wasted energy there. You should try the rotor qring. You can select your clocking to optimize for you.

[@TrailBreaker]

Interesting! Thanks 👊

[@zulfikarbiruni]

Yeah, I feel the same. I rode my bike with 38T absolute black oval chainring and it felt different. More acceleration and makes riding feel effortless. I ordered another 40T oval chainring from Garbaruk and let see what will happen

[@TrailBreaker]

Cool, Let us know how you like it!

[@zulfikarbiruni]

@@TrailBreaker a yeah with garbaruk 40T oval and it was awesome! smoother pedalling and more power on climbing

[@nebj00la]

I’m wondering your thoughts on the following opinion. Keep in mind I have no opinion on round or oval being better than the other. Is it possible there’s more to the fatigue variable that needs to be considered a bit more? (I understand your comments around 10:30 in the video regarding fatigue) What I’m interested in is whether you see the same results with: 1. Ride trail with oval first, wait X* days. 2. Ride trail with round, wait X days. 3. Ride trail with oval, confirm delta from first oval ride. X being whatever you decide could remove the fatigue variable. Then, just repeat the same test above substituting round first and confirming round delta. …or maybe I’m just reading into possible fatigue variations way too much. I haven’t tried an oval chain ring, so I’m new to this concept. Either way, excellent video. I appreciate your attention to detail in the videos I’ve seen so far. Keep up the good work!

[@TrailBreaker]

Thanks so much!. I'm actually wondering the same think myself. What would happen if I went BACK to a round now and see if there's still a difference. Stick around!

[@travelpackgamerz]

Thank you I come here to check I definitely buy oval one.

[@wessimpson2544]

Great article see you on Chicopee Copperhead again. I just picked up an Enduro about 3 weeks ago. I’m loving it. It’s more fun but got full carbon but still feels heavier than my aluminum Santa Cruz 130/120 bike. It has an GX Eagle I’m loving but 32 in the front. I’m thinking about this. I’m 65 not as strong as you. Should I go oval 28 or 30?

[@TrailBreaker]

Wes Simpson Thanks, Wes! Yup. I love Copperhead Gap. Which enduro? Swapping to a 30t oval will be noticeably easier. I had to go 30 on my Trek Fuel because an oval 32 rubbed. Gonna try it tomorrow if no rain. The effect is like being one gear easier across the cog. I’ll be 1.5 mph slower at the top and .4 mph slower in granny gear. I’ll let you know. Oh and carbon enduros are not using carbon to save weight. It’s a heavier layup for ride quality and stiffness unlike carbon frames for trail and xc

[@wessimpson2544]

Trail Breaker I got a canyon strive 6.0 2019 new clearance. A full carbon 160/150 SRAM GX for under $3K. That was my top budget. I’ve always bought from shops. I loved my Santa Cruz but the service or lack of I received from my shop made me try this approach.

[@TrailBreaker]

Wes Simpson Wow! That’s killer! I’ve seen great stuff on that bike. I really wanted the Spectral 2 years ago but they were out. Got the Trek.

[@wessimpson2544]

Trail Breaker gosh they had some killer deals on a spectral but I really wanted 29’s even with tons of great reviews on that bike. I could have got a full carbon one for around 2600.

[@onehelewaguy]

Switched to a Wolf Tooth 32t oval last month. I noticed a difference right away. Climbs are better and I have some juice left after the tougher climbs. Southern CA where we have some techy and loose stuff and it def helps, and I'm not getting into the lowest gear right away all the time. You said it best- it's like gaining another gear.

[@TrailBreaker]

Welcome to the club!👊

[@inthedogghouse86]

Thank for a great review. Just ordered one bc of this video. Just subscribed

[@TrailBreaker]

Thanks for the sub! You'll LOVE it! Let me know what you think

[@inthedogghouse86]

@@TrailBreaker best investment ever. When i first put it on, i peddled around the block to see how it was. I couldn't tell any difference between the round. Took it to one of our state parks with a lot of uphills, roots and rocks. The previous week i was struggling up the climbs. This week went up no problem. Idk if its the oval or placebo effect or me just wanting to justifying the 90$ price tag. but cant deny that i smashed all my strava segments from the previous week. I didnt tell any of my buddies i always ride with that i changed to oval. Half way through the ride they all mentioned i definitely was going faster. When i told then it might be because of the chain ring they were all baffled. They have never heard of an oval. One thing i can definitely say is my knee's felt better then normal after the ride.

[@kaiul2967]

Wow! I just ordered one! My enduro rig sucks to pedal I'm hoping this helps! Thanks!

[@TrailBreaker]

It can't hurt!

[@brodiebirkel]

I didn’t notice but are you using flats or clipping in? I got a new bike and it came with an oval. Haven’t ridden MTB in so long I don’t really have a baseline but I’m interested if oval is overall better or makes a difference with flats vs clips. Been on the road for 10+ years so really used to clipped in and a smooth full revolution. Thanks!

[@TrailBreaker]

Brodie, I was on flats. I think the consensus is that if you're more experienced and accustomed to riding clipped in your perceived benefit with the oval may be less. What bike came with oval, BTW? My unsolicited advice, since you've been away from MTB for a while, is to throw some good flat pedals on that bike (Race Face chesters and One Up make good affordable pedals that I will probably always run) and some 5.10 freerider flat shoes for at least a few months. Get really comfortable with bike handling and cornering in loose dirt. After that, if you really miss the connected feeling, clip away and crush us all😀👊

[@brodiebirkel]

I picked up a used Stache 9.8 that came with an absolute black oval ring. Went straight to SPD since clipping/unclipping isn’t an issue really. I can’t say I notice the oval on the trail (again, baseline comparison is nonexistent) but I do on the commute to the trail with a noticeable “bobbing” in my cadence. I’ll likely stick with the oval for now and try out a round after I get my tires under me a little better. I had a hunch the oval would really improve flat pedal riding I could totally see it working they way. Ride on!

[@TrailBreaker]

Brodie Birkel Yeah, when I first went to oval my normal mashing pedal stroke seemed jarring and on tech climbs I’d loose traction. Now I have to chill out and my power feels more even. Again, the better you are, the less oval helps😁

[@brodiebirkel]

Thanks champ. Look forward to checking out more of your content.

[@kingrat738]

Have Oval CR's on all bikes I've owned... They work great on technical climbs. I'll never go back to round 😉

[@TrailBreaker]

Amen, Brotha!

[@davidleal7133]

I liked it first impression was I felt that it smoothed my power which helped me maintain uphill balance

[@VGVulGar]

The Shimano biopace was great. Cycling was definitely faster and more energetic. Shimano closed the biopace because research showed an increased use of the athlete's body. It definitely required more fitness, but it was more fun to drive.

[@TrailBreaker]

It was ahead of it's time

[@justinbogart278]

How does a ring thats easier to spin "increase body use"?

[@richardcarr6493]

GREAT VIDEO I got one on my MTB and l m thinking of one for my gravel bike 1x which is light but feels heavier to pedal than the MTB ?? AND same gearing !! l like how it feels when you get off the saddle to grind it takes off :) l m a believer

[@TrailBreaker]

richard carr Do it! I’ve found the biggest deference in how I ride is I get out of the saddle more. In the past I’d sit and grind, using all those gears, and blow up my quads. I’m not a “seasoned” former Cat I racer who’s got legs to spare. I now know I can get up, crest a hill, and continue with more overall speed and still keep some matches in reserve. I’m faster and feel better after a ride👊🏻

[@richardmathers7238]

Did you get one for your gravel ? Iv got a Scott addict gravel 20 with the new grx 810 1x and was considering it as I know my pedal technique is shite 🤣

[@MTBTrailReview]

I've been considering one after talking to a few buddies that love it. Were there any major negatives for you? It sounds like a no brainer based on the video. Great comparison!

[@TrailBreaker]

MTB Trail Review Zero. Your results may vary but if you like to mash flat pedals you’ll see the most difference. Thanks for the comment and watching👊🏻👍🏻

[@MTBTrailReview]

@@TrailBreaker It might be time to order!

[@luminousfractal420]

no negatives other than adjusting to a much smoother input (you have to retrain your body so you not slamming power into the cranks unnecessarily..which is over in about 5-20mins of riding. its just all good.

[@MTBTrailReview]

@@luminousfractal420 Thanks for the input. I've heard pretty much the same from others. A little adjusting, and then they're amazing.

[@joelomatic2000]

The one thing I don’t get about ovals is if the difference is this obvious and measurable why on earth isn’t just everyone using oval chainrings? Especially in racing? It’s not like they’re new, why would any pro racer not use them? Why on earth would Nina Schurter run a round chain ring? Questions questions.. Great review though man cheers. I just switched from oval to round on my enduro bike and am keen to see how I notice the difference.

[@TrailBreaker]

joelomatic2000 You went oval to round? Yeah, I get this question a lot. I think oval makes the biggest difference for moderately trained riders on flat pedals. Strong riders on clipless pedals already have efficient form. The better you are the less it helps😊 Thanks👊

[@joelomatic2000]

Yeah that makes sense, thought that might be the case. I was on a round then bought a second hand bike with an oval on it. It climbs great but I couldn’t equate that just to the ring when I’d just changed my whole bike also. So switching it back to round should help me get clearer on the oval factor

[@adonikam1]

EXCELLENT EXCELLENT EXCELLENT VIDEO!!

[@StirlingNP]

Quick question. Sounds like you took it easy on the descents the day you trialed the oval. Can the same be said for the day you recorded the climbs with the round chain ring. Just curious if energy wise you were comparing apples with apples. Cheers.

[@TrailBreaker]

Lionel Haldane Yes, it was only a week before so same ER precautions. Same effort on climbs and same risk on DHs. Thanks for watching 👊👍

[@weathdone]

LOL... AM i just weird?? LMao love the vid brotha... Now either u work for Absolute black..LOL or its a better feel. Its been over a year for me as well since i Rode one..... u got me sold on trying one again!!!! cant wait to see diff if any!!!

[@TrailBreaker]

Lol, check out the latest video I did on this😁

[@dirtycommtroop]

Ordering mine now. Hoping it will smooth out some of the punchiness when on technical climbs in low gear.

[@TrailBreaker]

It will. I also find I can push a bigger gear and keeping more traction on loose or techy climbs

[@JasonCollin]

Thanks for the great comparison video. Well done from a technical aspect. I just ordered an oval chainring today! I hope to experience similar improvements as you did.

[@TrailBreaker]

You’re welcome! I think you’ll be pleased. It feels weird at first but after a few minutes you won’t notice anything but how good it feels on climbs😁 Good luck 👊🏻

[@tommyestrada6464]

AB for the win, I don't think I could go back, besides for me anyway they seem easier on my knees.

[@TrailBreaker]

I hear that a lot!

[@Mububban23]

I dabble in MTB but mainly ride road, and I like riding in the hills. Given the traction difference between tarmac and MTB surfaces, would there be minimal benefit to oval rings on a road bike?

[@TrailBreaker]

Mububban23 Yes. Most tests I’ve seen conclude minimal benefit to highly trained cyclists, riding clipped in, on road bikes. Even MTB riders clipped in may show limited benefit. Most subjective, mine included, comparisons seem to show the most benefit on MTB riding flat pedals. This is nothing new and the debate will continue for some time to come.

[@Mububban23]

@@TrailBreaker That's cool as I ride my MTB with flat pedals, so may still be worth investigating at some point :)

[@joseandrewdeleon9508]

Hello there. How do you exactly install your oval chainring to your crank arm. Which position the elongated portions of the ring go with your crank arm?

[@TrailBreaker]

Here you go kzbin.info/www/bejne/g4DTiGmMiKmbq9k

[@paulmiddlemass6465]

How did you guage efforts on the climbs? Perceived effort or heart rate? Newer components always give you that (sort of) new bike feel that definitely seems to give more energy. Not knocking, as I run ovals, but I think the time differences would not be as great if you used the same actual effort. Not scientific enough

[@TrailBreaker]

Perceived effort. Yeah, I’m no scientist 😊 I did try to keep both runs as equal in as many ways as I could. I’ve ridden this trail scores of times and am pretty consistent through the sections and in total. So much so that I use this trail as a barometer for my fitness. The oval definitely makes better use of my modest power available on these short high-effort sections. Thanks for watching 👊🤙

[@TheNewnan3]

Do you replace the same number of tooth chainring when you replace with oval ?

[@RJ1789]

From what I understand you go two teeth higher, so if you normally ride a 30tooth, get a 32 tooth oval.

[@TrailBreaker]

I tried to run the same. No issues on my Kona but had clearance issues with the Trek so had to go to a 30 tooth oval to avoid chain stay rub. The combination of changing to an oval AND sizing down make the Trek (trail bike) climb like a goat! I don't mind it at all especially on really long and steep climbs.

[@MegaUnderscore]

So I’ve seen a few people rate these pretty highly now and they seem to be the thing to get. What I don’t get though is if they are so good, why aren’t bike manufacturers putting them on as default considering they are relatively cheap and likely wouldn’t cost them any more. What’s the catch?

[@TrailBreaker]

Everyone can ride a round but some will not like the feel of an oval especially if they ride clipless pedals. A vast majority of road riders use clipless so the benefit of oval is up to debate. On MTB, pedaling style determines whether you like oval or not. Round is always a safe bet 👊🏻

[@andevipertraderpfeiffer8787]

Definitely trying an oval. Thanks