Yamaha YZ125X vs Yamaha YZ125 - 2 stroke MX battle

[@dirtfreek]

Thanks to you and your buddy Tim for the fun battle. I'm a "seasoned" rider like Tim and its great to see him ripping cause I plan on doing that myself for many more years. My most fun ride ever was on my ol CR125 with my buddy on his 125 chasing down another fast guy on a 125 at our local track. So much blast!!!

[@dirtniron]

That is awesome! thanks for sharing! you are right, its so much blast ;)

[@JohnSmith-dj5gf]

Just picked up a new 2021 YZ250X two days ago. It’s sitting in the garage right now unridden until my protective gear and hour meter arrives in the mail. Sometimes I go in the garage and just stare at it, stroke it, sit on it and make brrap noises....can’t wait to get her out in the desert!

[@dirtniron]

congrats John, that must be a great feeling! super nice bike too! share some feedback once you ride it

[@matthewchevres4970]

I have the 2021 YZ125. I installed Vforce 4R Reeds, FMF Fatty Pipe with Shorty silencer, burning Vp VPR Race Fuel with maxima castor 927 premix at 32:1 going through custom smart carb (SC2 36mm) and man it's a whole new bike. Low,mid,top are excellent

[@PQR5CHE]

Great review! I'm gonna buy myself a 125x!

[@dirtniron]

Right on!

[@YamUzu250]

Hi Rado - the reason why your YZ125X can't rev as much as the standard YZ125 despite the fact that the ignition timing is slightly delayed at the top rpm-range of the "X" is that your stock rear sprocket is up 2-teeth, i.e. 50-teeth on the "X" vs. 48-teeth on the regular YZ125. While you're at it in the MX track, why not put a 48-teeth on your "X" and test it once again against Tim's regular YZ125??? Give us a feedback bro. Looking forward to it.... Thanks huge. God bless

[@dirtniron]

thanks man, appreciate the info! let me see what I can do.

[@YamUzu250]

@@dirtniron thanks huge Rado for any feedback if indeed the 48T rear sprocket made some "noticeable" difference in the MX tracks. I'm hoping it does, and the "X" is i bet a better all-around bike than the standard YZ125, whether for MX and enduro. God bless.

[@dadthelad]

All that does is lower each gear. So in first gear, you will need to change earlier, and it gives you more grunt off the mark. For every other gear, yes, you exit each gear at a slightly slower speed, but you also enter it at a slightly slower speed, the rev range is the same, so it will still have less top end. Change the sprocket, and it will still have the same gruntier low and middle end, and less top end.

[@bikersoncall]

EDIT; 7 mos later, I had this wrong, and backwards, below is just wrong, all over, ignore; @@dadthelad I believe that if he put a 50 tooth on the x, (48 being stock) it should have a higher top end and a little less torque in each gear at low rpms all the way through the gears.

[@dasboot9471]

@@bikersoncall the x has a 50

[@jhoncarloabas6216]

Yz's are the BEST. I have yz125 yr model 1999 but still works.

[@ghostrt1608]

@ Jhon Carlo Abas ... I had a '99 YZ125 and that thing was fast for a 125... I miss that damn bike

[@chiekogogana7069]

I've got an 04 YZ love it definitely yz's are the best

[@nicko7385]

I got a 05 model same year as myself

[@nightmare3557]

I got a yz125 2003 And it has pro Circuit exhaust

[@dirtniron]

Right on! I used to have 1999 yz125, but never rode the track on it

[@scottmeredith8951]

Hey man that was a great day at the track. Anyone can get out there and poke around on a 450. Good to see guys getting after it on the 2 strokes!

[@dirtniron]

thanks Scott, glad you liked it! would be fun to ride together one day ;)

[@PQR5CHE]

I wanna be as cool as Tim when I grow up

[@DeclanH250]

crazy what a difference it makes normally you can never visualise mods but this stic is very noticeable

[@dirtniron]

yea, it sure does. glad you can see it on the video

[@DeclanH250]

Stic vs lectron 😉

[@thumbgas888]

I think the all around bike the X takes the podium!!

[@dirtniron]

i agree

[@stevehargrave4649]

You two shredding it on the 125 2t clearing the jumps clean brrrraaaappp Brap brother

[@dirtniron]

🤙 thanks Steve ;)

[@TomRoidl]

Great video - this is exactly the comparison I've been looking for...aand now I might have to pick up a YZ125X.

[@dirtniron]

Glad I could help!

[@thegreat1548]

​@@dirtniron is the yz125x good for a beginner? I don't want a trail bike to start with even though it's recommended for a beginner but I want to start on a race bike that's kinda calm,I guess!!

[@dirtniron]

@@thegreat1548 its ok I think, although the 125s are little more difficult to ride. But not too hard, you should be ok

[@brooker_7338]

Love the 125’s I have a 2019 ktm sx125 and love the thing

[@dirtniron]

so much fun!

[@gerardcampbell-speer7268]

Yeah. I’d love a dirt bike. But I can’t afford it. I always get obsessed about wanting one. Don’t know why. 😔😔

[@TFDStudios]

@@gerardcampbell-speer7268 get a chinese one

[@gerardcampbell-speer7268]

@@TFDStudios are Chinese dirt bikes good? 🙂😮

[@gerardcampbell-speer7268]

@@TFDStudios how much are Chinese dirt bikes?

[@rcrosier]

When you're riding the YZ125, you need to fan the clutch in sections of the track when you're bogging, or shift if you're that far off the hit. If you're not willing to fan the clutch, you have to take the outside line and focus on maintaining a high corner speed. The YZ125 (non X) still has much better bottom end / mid range power than most 2t bikes, such as the old CRs or the new KTM SX models.

[@dirtniron]

thanks for sharing, I will work on my riding

[@motorco.9454]

that suspension looks so good

[@dirtniron]

yea, feels great too

[@todayweride4779]

I think you and Jay need to go do some hill climbs on that yz 125 x. That would be interesting. I also think your more than capable on the mx tracks your ripping it. Time to do a desert race if anyone can do a full length movie on a race it would be you. Wow how this channel is growing. Awesome!

[@dirtniron]

thanks Pete, it would be great to do some hills on 125x. Appreciate your support brother!

[@BigDaveTALKS]

That was awesome. Pretty soon we are going to see you doing big whips over those table tops. 😬👍

[@dirtniron]

haha, glad you liked it! not sure about those whips tho ;0

[@olliechristopher467]

Hey Rado (hope I pronounced and spelled it right). Keep up the good work on videos! You have a nice mixture of guys you ride with. I enjoyed the interview and as alway good info on these 125's!! I float right at around 200-205 lbs and I'm convinced to get a 125 for my next trail bike. I look back and realize I hardly ever used all the juice my KTM300 or my current Beta 498 has to offer on the tight single track. Lazy rider comes to mind when describing the big bores on the trail. With those 125's you guys are on it!! And they are so light!! The 125X screams and runs clean with that carb stick you installed.

[@dirtniron]

thanks Christopher, yes you got my name right. Glad you like the content and the variety I try to bring. 125 would be good bike for sure, just get ready to clutch it more on the trails. I need more time on 125x riding the trails to be able to share more feedback - coming soon

[@philip5798]

My favourite dirt bike channel on KZbin. Great work Rado

[@dirtniron]

Thanks Philip, appreciate it 👍

[@hexhead5732]

Battle of the Yamahas cool bikes sound good ripping through the track cool video thumbs up from me 👍

[@dirtniron]

Glad you enjoyed brother!

[@CoolGuynumbawan]

Hey, I’m looking to get into dirt biking and have my eye on the yz125/x. I’m 5’11 175-200lbs. You guys think this would be a good bike to start on? I love the sound of 2 strokes. Also if anyone cares to share their opinion, do you guys think it’s worth it to get a brand new and possibly finance it over a few years or something like that?

[@CoolGuynumbawan]

I’d appreciate anyones insight, I don’t wanna make the wrong choice as this isn’t a small amount of money to be spending

[@in7el11]

great bike to start on and get a like new bike on facebook market, save a couple grand.

[@bird4dbk420]

I was wondering if you might be able to share your compression and rebound clicker settings front and rear? It would be very helpful for all of us that have the Yz125x. Thank you for your time awesome video!!! Cheers!

[@dirtniron]

Yes I can, will need to count the clickers ;)

[@bikersoncall]

9:50 ''whiskey throttle a 450 , you're off in the weeds'' lol 👍

[@metalofthedeath]

I want a 125 but I’d be pinning it constantly and I’m worried it’ll just keep blowing up lol

[@michaelgarland579]

They don't blow up often I have yz125 2003 old bike an had it 4 months never blow up on me I drive fast

[@ryanbeggs6034]

sure did help me with the confusion on the two. x seems like the way to go

[@dirtniron]

Right on 👍

[@64maxpower]

Have you played with jetting in your STIC? They are supposed to allow a crazy amount of overrev. They even recommend a torque pipe because the STIC allows for so much overrev. Plus the carb is a 38 instead of a 36 which should give the air at top revs too. I know the mapping is different but its not that much different. I know people that say they won't ride a 125 without a STIC. Your friend should have been like holy crap! I'm ordering one on the drive home! Call George, he will help you get all you can from the carb.

[@dirtniron]

I think jetting is good, the cdi and 2 teeth bigger sprocket is probably whats causing it. I am talking with George, thanks for advice!

[@64maxpower]

@@dirtniron what do you mean 2 teeth bigger? 2 bigger in the rear? I definatly would not do that. Especially the track you are riding. With the STIC I would even go 1 smaller in the rear if anything. I tried a lower ratio once on my 125. I hated it in every area. Even made the bike turn worse. Your bike should be eating a stock yz just with the Kehien carb alone without the STIC

[@dirtniron]

Stock 125x comes with 50 rear sprocket, which is little too much for track. I am going to drop down to 48, the stick bottom is plenty to pull thru it and my gears will get longer.

[@DoliPanjaitan]

If it was your own money, which one would you take home? The regular or the "X"? And why?

[@dirtniron]

probably X, but I would wait for next year model

[@michaelgarland579]

The yz125 2003 is perfect for me I run my bike hard

[@thegreat1548]

​@@michaelgarland579come on Mike slow down just a little bit

[@LPSrcbiker]

Went to the track today on my 16 yr old sons YZ125....a 2003 model. Rebuilt it this winter for him and since he was busy i stole it for "testing purposes " today....😂

[@jasonfalcon4052]

The SST FMF pipe and shorty muffler makes the YZ 125 the greatest mod. Great racing Yamaha can tell you that no one has seen my speeds on there 125 line.

[@dirtniron]

125 such a fun bike

[@jasonfalcon4052]

@@dirtniron ❤️🏁

[@bentagliarini7918]

Can you do another video but with a STICK Metering Rod in the mx versions also, surely that should be better than both bikes along with fmf Gnarly and shorty rear

[@Mackaykartclub]

Would have liked to see you swap the carby with your friend in back to back test - maybe you could consider that next time?

[@dirtniron]

yes, thats a good idea, we might do that in the future

[@kiwicanuck5459]

great video , 125x or 250x for trails and the very odd track fun day, i am 200lbs. this will be my first off-road bike, as i ride street bikes currently. thanks

[@dirtniron]

both would put a smile on your face.. hard to pick one

[@2wheels327]

I think you need to keep that 125x for your track bike. Looks like alot of fun

[@dirtniron]

yea, i am thinking that too.. I feel like I need 125 for sure ;)

[@tomnekuda3818]

Rado - I've been watching your uploads for some time and I can tell you quite honestly that I'm seeing quite a bit of improvement in how you're controlling the bike, moving it around, coordinating your speed with angle of lean, and much more. I think you're really getting onto how you want to make it run. I sure would like to throw a leg over that YZ125X.......it looks like a blast!! Keep the Faith, Tom

[@pathurley354]

I was thinking the same thing I have been watching for a couple years and seeing the progression he is getting so much faster way to "Stay motovated" Rado

[@dirtniron]

thank you Tom, always appreciate your feedback. Glad you can see some improvement in my riding, I do feel more confident on the bike, still a long way to go tho ;)

[@dirtniron]

Appreciate it Pat! thanks for sticking around for several years ;) Stay Motovated!

[@isaaclombardi8649]

A yz125x is faster than a regular yz125 because it has more low end power like a 4 stroke which makes it faster through the rpms. It still has that powerband but you dont always have to be on the top of the rpm like you do on the regular 125.

[@dirtniron]

sounds good Isaac!

[@yodavizion]

Thinking about getting a 2020 yz125 …

[@heavywavez7592]

What's the main difference between the x and the regular yz125?

[@davem145mxr]

I’d like to see the comparison on a supercross track

[@dirtniron]

I cant ride supercross track.. I would probably die there ;)

[@degerlitaslar375]

thanks🙋

[@dirtniron]

Welcome

[@alaynafolk4994]

well yeah it's a two stroke race bike. you're supposed to be holding it wide open the whole time.

[@dirtniron]

I heard thats how its supposed to be done, honestly its hard for me to ride like that. working on it.. thanks

[@Sam07_17]

guys what dirt bike you recomend for a 13 yr old 5 foot 5 ang 50 +kg

[@bobbypruce8272]

Yz85 small wheel

[@alaynafolk4994]

have you ever rode before?

[@nightmare3557]

I’m 11 and ride a yz125 and I’m 5ft3 and it’s perfect

[@alaynafolk4994]

Night Mare no way you can touch the ground.

[@nightmare3557]

Alayna Folk I can

[@GCSimons]

Great comparison

[@dirtniron]

thanks man!

[@gerardcampbell-speer7268]

I mostly prefer 4 stroke dirt bikes than 2 strokes. Wikihow says choose a bike that has a 4 stroke engine in it of course.

[@dirtniron]

they are both great

[@michaelgarland579]

Il smoke any 4 stroke against my old yz125 2003 It's a beast even old ones are fast as he'll

[@willmcgregor7184]

I’m looking for a 125 2 stroke for trails & hard enduro skills. What mods recommended to yz 125 to suit my interest. I’m more interested in Lo-mid power than top end speed. Thanks!

[@lancebishop7061]

Degree the cams on Tim's bike. You can advance the timing by a few degrees to even out the top end and bottom end to give him the advantage on the "X".

[@neil_hamel]

2 strokes don't have cams

[@jakan756]

well ,looks like thats the only bike you need.

[@dirtniron]

looks like it! definitely a lot of fun ;)

[@Legion739]

Loving these 125's My brother needs a bike I might get him a YZ125, but that might make me want to sell my YZ250 xD. Let's see

[@dirtniron]

haha, yea that can happen ;)

[@singletrackmarc819]

use your clutch and you could keep that thing singing it's a 125 hold it wide and use the clutch to put the power down

[@dirtniron]

I dont want to keep it wide open all the time, i feel for the engine..

[@singletrackmarc819]

I know but it's a 125 that's how it's made to be rode I cant ride one like that either

[@gladegoodrich2297]

Seems like the 2 stroke guys spend all their time getting on the gas. While the 4 stroke guys spend all their time letting off the gas.🙄

[@mixalis6168]

125 2T = keep it pinned !!!!

[@axlmarchiano3259]

Superb

[@ianjaeger4178]

thats why i ride cr500 power top bottom way more fun

[@sanesaint8725]

Wish I had one

[@dirtniron]

go for it bro, work hard and good things will come your way. good luck

[@cheddarshredder6572]

Is this video before the stic mod in the carb?

[@dirtniron]

its with the stic mod

[@stormridersskatehouse21]

My dream bike yz125X .

[@jimwil6972]

Build the wall 👍

[@pordbyjonathan]

סרטון טוב אחי שומעים שאתה ישראלי לשעבר

[@SlickRick4404]

Where is this track located?

[@dirtniron]

Cahuilla Creek MX in Anza, CA

[@stuartatkinson3784]

What keihin are you using? I just got a 2022 yz 125x and want that set up for mine

[@dirtniron]

it was 38mm Keihin airstriker I believe.. JD sells it with their kit in it around $400.. I had a stic in it but thats extra $400 and I think good jetted keihin with JD will run really good too.

[@stuartatkinson3784]

Thank you, I will go with that. I have been trying to decide between the keihin and the lectron billetron and for some reason I just feel more comfortable with the keihin. Still motovated!!

[@henryhunt2812]

What’s the difference in bikes

[@dirtniron]

cdi, suspension settings, rear sprocket, 18 inch wheel and couple more details

[@henryhunt2812]

@@dirtniron yeah righto

[@robbyf9186]

where is this track???

[@dirtniron]

cahuilla creek MX in Anza

[@colbyjones1555]

Racing 125 there’s something called a clutch it can be helpful sometimes. Lol!

[@dirtniron]

I am just learning how to ride 125..

[@johnmclaughlin4802]

👍

[@aaronodguy967]

Change the pilot jet on the YZ125 and the bottom end will come alive.

[@dirtniron]

thanks for the tip

[@zardportugal]

Less is MORE! Cheers.

[@dirtniron]

exactly!

[@sanesaint8725]

The x is just a little bit bigger

[@dirtniron]

should be the same..

[@alaynafolk4994]

all in the rider..

[@dirtniron]

sure is, they feel different tho

[@otegoten1339]

good

[@dirtniron]

Thanks

[@billangus3299]

It is truly ignorant to pit a woods bike against a MX bike on a motocross track.

[@se11459]

This particular woods bike is far better on the MX track for any rider that is not blazing fast.

[@vinci1083]

Moin Meister

[@alaynafolk4994]

i know you're working on english but talk slower in the intros. can't even understand what you're saying

[@kylewitzel3540]

Maybe the your the problem. I don’t have an issue with his accent.

[@alaynafolk4994]

Kyle Witzel what kind of of sentence is "maybe you're the problem".. like how am i a problem? he talks so fast with his accent it's hard to understand anything he's staying in the intro. after the into it's fine.

[@dirtniron]

I say my channel name and my name quite quick, I will slow down ;) not on the track tho!

[@Ben24636]

100th like

[@dirtniron]

thanks!

[@didickcheeseburger]

youre special

[@Ben24636]

@@didickcheeseburger thanks you too man