what does and 18 inch rear do for you?

4 replies to this topic
  • forestdog

Posted November 07, 2006 - 08:43 PM


I have a 1998 yz 400 f and was wondering what kind of difference it makes and what it does.

  • SRT426

Posted November 08, 2006 - 12:24 AM


18"s are good for off road riding because of the taller sidewall, it helps absorb shock better and protect the wheels. If your just running tracks then stick to the 19.

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  • SurvivorMan

Posted November 08, 2006 - 06:56 AM


I have a 19" practice wheel and then a 18" race wheel for hare scrambles and cross countries and find that the 18" is only better when sidehilling over roots or rocks. There is not a huge difference, the 19" does skip around more over small roots and rocks though. If you get a 6 ply tire like a kenda 257, you can run 8 psi and this helps absorb small bumps/hits and won't pinch flat

  • skipperlantz

Posted November 12, 2006 - 11:37 AM


Because of more sidewall it makes it harder to pop tire tube. Peformance wise there's not a big difference as far as I can tell.

  • grayracer513

Posted November 13, 2006 - 08:52 AM


Peformance wise there's not a big difference as far as I can tell.

For trail riding there probably isn't. On the track, though, you can definitely feel the extra weight of the 18" tire.

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