Can I Over-Fork My Bike? | Ask GMBN Tech 277

[@darrinhines3951]

You guys mentioned Chain Reaction Cycles in this episode. I suggest an episode on Nukeproof / CRC bailing on the US and leaving 2023 buyers like me with a cracked frame and no support.

[@adam11wilson]

And vitus I have a 2023 mythique and can't evan finde spare bolts for it 😢

[@The_graviest_gamer]

They went bust :( who knows if you will ever get a replacement

[@galenkehler]

That's the risk we all run when we make our purchases. Personally I've never made a purchase based on warranty support for this reason, you just never know.

[@Antjan46]

Great show again, thanks guys. In relation to the last question, ‘I too have had some problems with blown shock after about 120 hours riding, my Stumpy came stock with a DHX2 coil is leaking oil like crazy. It’s a rather expensive (Troy Lee Designs Limited Edition) frame so it very disappointing. No help at all from Fox or Specialized despite the bike shop trying to find out how to get a replacement. Anyway, touching on the first question in the video, ‘I purchased a very reasonably priced Marzocchi Bomber Air shock and I am loving it! Great shock for the price

[@RicardoPetrazzi]

I've been running the 170mm Rockshox Lyrik fork on my 2019 Scout 275 that originally came on my 2021 Mega 275, without any particular downside. 😮

[@texfromro]

When people are asking about installing a longer fork, the real question then becomes what is the diffrence between axle to crown lenghth of the two forks. When I changed the stupid 130mm Rockshox that came with the bike with a 160mm Manitou, the latter had only a 7mm longer axle to crown length. If you then factor in the sag difference between the 2, the seated geometry remained exactly the same. So yeah.. as always the quick and correct answer is "It depends" 😁

[@Hakuna_Frittata]

I just ran into the same swapping a 120mm Suntour to 140mm Fox. I was sweating it a bit, then realized the axle to crown is nearly identical.

[@UnlikelyReply]

Over forked: you forgot to mention that your seat angle could be terrible for climbing

[@scottchaney4573]

I used to time all the downhill in state. One race in the late 90s early 2000s, we had a few guys from Japan show up. They all had GT hard tails. One had a Zaskar with a dual crown boxer. The finish had me thirty meters before a 90 degree turn, I could hear the bikes rattling before they hit the turn. I heard the sound of someone running, I looked to the turn and saw the zaskar guy running, frame in one hand, fork and head tube in the other hand.

[@edwards8383]

So new Suntours are the same as 10 year old Fox factory fork😅😅😅😅😅😅. Bozwollox!!!

[@narno2988]

thanks for all of the ask GMBN tech videos, It just helps me and other rider out

[@paulseyfert1482]

#askgmbntech I have a DT Swiss exm dual position fork (a trend that came and went, though with flip chips nowadays I'm wondering if position adjustments are coming back? But anyway). It's time for a service again, and it used to be bike shops here didn't do in-house for DT Swiss and sent them in to Biel (DT Swiss head quarters), but now DT Swiss said they don't service forks that old anymore (15 years iirc). Is that already the end of the fork? It seems younger than what people show on the bike vault.

[@neelchandran6018]

My drive train seems to squeak, but only when I’m my lowest few gears. Would you guys know why? Also my canyon lux chain guide keeps dropping into the chain, even tho I’ve fully tightened it. It also starts to actually rotate when I tighten enough, so I can’t make it too tight. #ASKGMBNTECH

[@TheTree1968]

#askgmbntech Really good and accurate explanation from Anna on the warranty situation and responsibilities. I have a question re costs charged during a warranty claim. My LBS charged me for labour during a warranty claim because he claimed that labour charges are not included in the “bike industry” for warranty claims. I found that really odd.

[@brandon-kg2vd]

I have a question, I'm thinking of selling my Enduro mountain bike in a city that isn't super big on mountain biking. What websites do you recommend using? And how can I go about finding a fair value for my bike?

[@dblack8377]

I had to stop riding a fat bike 100mm BB because of knee pain. The next ride w/ 73mm did not hurt my knees and still haven't 3 years later.

[@Ferrari255GTO]

N E V E R E N O U G H

[@mr.peters6483]

You would not feel much difference in a 160 to 170 change. Now going to 200 from 160 would most likley not be a good idea.

[@patrickboland7752]

#gmbntech any advice on buying kids mtb safety kit (full face knee pads , body armor ect . My 6year old son loves coming to the trail center with me on his vitus mystique 24 but he is getting braver every day. Want to get him geared up so if he has a crash he reduces his chance of injury and avoid knocking his confidence

[@colinsalmon4427]

Changing components ie up forking outside the manufacturers recommendations would also void your warranty,if it still within its warranty date of course

[@z1bones]

Pro's use the fork their sponsors tell them to use. don't be fooled that popular =good. it doesn't

[@kevinbarrio]

I did overfork my first bike back when I was a kid. It was a xc bike and I got into dirt jump at 12, and slowly start modifying it into a (at the end) very nice bike for a kid. It started with an 70mm Sr Suntour which I replaced with a Marzocchi Dirt Jam. And yes, I snapped the frame near the head. Rewelded it, and worked even better. Now I have a Banshee Scratch with a Marzochhi 888 and 24", and I love it!

[@sebastianpop2908]

#askgmbntech hello, 141 QR question. I have a 1x10 drivetrain and i want to upgrade to a 1x12 using a DT Swiss wheel and hub 12x148 with QR caps and a microspline. But i cannot find anywhere information if the 12 speed deore cassette will fit inside the 141 rear frame using this setup. Help? I cannot find any information regarding the heights of cassettes. Only diameter and tooth count.

[@wpautz]

#AskGMBNTech Newer jerseys feel like a wet plastic bag. Why is that? Not sweating profusely but possibly more than average. Is it too much recycled plastic bottles in the fabric? Are woven materials better for this? Can you recommend some?

[@gaddobronx6740]

Sorry off topic...just wanted to know wheres Isaac? Haven't seen him in a while...did he leave GMBN. He evolved a lot since he started and seemed to get into his grove with the rest of the GMBN crew.

[@XCRiders]

If it comes with 120mm just get a better 120mm fork Because the bike Geo is designed around that 120mm figure. 120 is a good amount of travel for a hardtail

[@bat_fastard4525]

#AskGMBNTech Hi folks hope all is well. I have a 2019 rallon and wondered if it is possible to convert to the newer 27.5 linkage? I’ve looked and can’t find any info, I’ve even reached out to orbea but have had no response. It’s just so I can get the back tyre away a bit as I’m slightly vertically challenged. Thanks in advance

[@willweatherburn]

#askgmbntech I'm getting a downhill bike for the summer travelling the Alps in my van. I store my bikes under the bed, but can't fit a downhill fork under there and don't want to raise my bed any more! Can I deflate the fork (boxxer) a little to sit in the travel for storage?

[@Michael-ri2eh]

Wow , this is going to be the new world of anything. Biking is going be lawyers based, and technical support and care is moving in a strange position.

[@mike78bassmanify]

Overfork: My Cannondale comes in two variants, with 100mm and 120mm forks. I changed mine to a 160mm with a 51mm offset. For whatever reason my bike came with the wrong spec fork, 46mm offset instead of 51mm. I run it with around 25% sag, and I have no negatives to report so far. It handles better and still climbes pretty good. I did put alot of thought into it, pros and cons, but I am happy with the outcome. I am a heavy and older rider, so again, it may not work for all.

[@TheFuel89]

I've been wondering if it's viable to overcome so called overfork by running more sag.

[@mike78bassmanify]

@@TheFuel89 I was wondering the same thing, and didn't really find an answer. So I had to try it, and so far so good.

[@frienduro24]

For everything 10mm of overfork, you shorten the reach by 5mm The HTA and STA gets slacker and the BB raises Anything past 20mm. You wreck the geometry

[@mike78bassmanify]

@@frienduro24 Thank you, that is very helpful, have a great day..

[@aceninopis-an5336]

#AskGMBNTech what can you about an xc bike with a 29er rear wheel and a 26er wheel and fork up front

[@alcosamwel]

#askgmbntech #askGMBNTech I want to convert a project bike from 3x to 1x But it has 3 piece square taper cranks, and i dont know if can change the chainring to a narrow wide Do i have to get new cranks ?? If so do you have any recommendations for a budget crank set that will fit a narrow wide? Or is there another option ? Tnx advance

[@robinditchburn9054]

Stridsland journal make 1x chainrings for older cranks, worth a look

[@alcosamwel]

@@robinditchburn9054 tnx for the tip, but Out of stock and above budget

[@sarcasmisthelowest]

If you buy a one x narrow wide crank you will need to file off about a 1.5 mm off each of the four (or five) arms. It might creak a bit at first if your filing in not that good. The holes should be in the right spot, check that though. But honestly I would just replace it with a new hollow tech cranks. The weight saving alone is worth it. Hollow tech is safer too. Just remember BSA bottom brackets both screw off forwards, peddles both backwards. Check your charity dump shop, or Ali Ex prices for budget options and tools to match. A pipe wrench will work if you’re not too concerned about the damaged look to your new BB. Good luck.

[@_mgiles]

The stoic with the boxxer in the thumbnail gave me ideas.......

[@tmill2001]

Owen with the hashtag hand sign!!! LoL

[@imilic8]

#gangsta

[@mikerendell3899]

My local bike workshop told me that the lower end sr suntour forks are not serviceable.

[@simonm1447]

What is lower end for them? XCRs are perfectly serviceable, the shop likely just has no interest in them since they are simple to service and people won't do this at bike shops

[@mikerendell3899]

@simonm1447 it was a xcm fork, I ended up buying a rockshox fork for a replacement.

[@simonm1447]

@@mikerendell3899 XCM is more basic than XCR, but technically it's still serviceable. You get the plastic bushings and you can put some Sram butter on the stanchions. The thing is if you pay somebody to take it apart it might cost as much as a new fork, but some lbs are pretty arrogant here.

[@boogiedownbronx73]

I started on a hardtail back in November with 100mm travel. A month later I bought a double suspension with 150mm travel. I was practicing every day with the hardtail up the hill I live at. First day with the DS I crashed hard after a rocky descent as my left break was too tight...Since then I gone back up with the DS and ripping it hard. That 50mm difference definitely is noticeable where I ride. It climbs 100 times easier and downhill is a beast...now I will upgrade it to 160mm with the rockshox upgrade kit...

[@blakekennard7700]

Heck yeah get it! The conversation seems to always steer people away from experimenting with “the manufacturers geometry”. I’m all for it! Have fun

[@vehicle-stuff]

What kind of biking can blow up an XC suspension fork? I'm really curious as I'm new to this and need an advice of what not to do as I'm tight on budget.

[@wvjeepguy8178]

Too many jumps that the fork doesn't have enough travel to compensate for.

[@krzysiu4003]

Where is Isaac?

[@RicardoPetrazzi]

Busyy

[@saddleweary2777]

#askGMBN When straightened a derailer hanger on a carbon bike is it necessary to remove the hanger or can it be straightened on the bike. I'm scared of cracking the chainstay

[@jimm244]

Leave the hanger on the bike, wheel on & fully tightened. Use a quality tool. You’ll be fine.

[@DZig]

Thanks for the response

[@narno2988]

first

[@FIGHTTHECABLE]

@AskGMBNTech I want to see Blake build 800mm upper stansions to fit in a 200mm downhill fork on a XC frame. Then ride it. Good Luck.