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

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  • 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?

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