What's the fattest tire i can use?

9 replies to this topic
  • HamBonE_23

Posted May 24, 2005 - 08:17 PM


I have an 01 Yam WR426. The rear tire is a 110/100/18. What is the fattest tire without having to do any mods that will fit?

  • tmonteton

Posted May 24, 2005 - 08:24 PM


I would think that a 120 would be fine

  • biznet1

Posted May 24, 2005 - 09:07 PM


The one that's on the fastest back wheel. :) Sorry, I had to go there.

  • devo1

Posted May 25, 2005 - 08:19 AM


send a pm to Indy wr450, he uses a terraflex , that is huge and fits.

  • speddie3

Posted May 25, 2005 - 02:06 PM


Please post up the results!!! And after seeing your size, the WR model's have smaller rear rims?? I say that because my YZ426 is wearing Dunlop 110/90/19 And my understanding of the numbers is width/sidewall ratio/rim correct??

Ham bone 23 do u have the stock rear rim??? My YZ has stock

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • twopumpthumper

Posted May 27, 2005 - 08:30 AM


I have a 2000 yz426 I went to a 18 inch rear wheel...stock is 19 inch, I run a 120/100/18 it fits fine, It is a little heavy though

  • HamBonE_23

Posted May 29, 2005 - 07:44 AM


I purchased the bike used. I just pulled up some info on Google and see that the bike origionally came from the factory with a 120/90/18.

So would a 120/100/18 fit???

  • clark4131

Posted May 29, 2005 - 07:35 PM


That's a taller tire, not wider. You'd have to go to a 130 for a wider contact patch...SC

  • Indy_WR450

Posted May 30, 2005 - 03:41 PM


TeraFlex 140/80-18 is the biggest tire you can put in but they dont make a 19" version so you have to replace the rim and spokes. :)

  • HamBonE_23

Posted June 01, 2005 - 11:30 AM


If the TeraFlex 140/80-18 is the biggest, what would be the best performance tire for a hard/inter track?

Related Content


2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

yz400f throttle bog by yz400fmaniac

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • * * * * *
  • Hot  28 replies

100 hrs on 2014 yz450f, shim valves or replace them? by ttr230rider6

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  79 replies

Michigan Motocross Tires by 288yz450

Dirt Bike   Dirt Bike Regional Discussion   North
  • 1 reply

Help with 2000 yz426 by weekend woods racer

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  36 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.