Upgrade 03 YZ450 to 5 spd???

2 replies to this topic
  • gotwings

Posted November 10, 2010 - 11:44 AM


What years of Yz or Wr trans will fit??? I see in the case there are mounting points for another shift fork, etc.


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  • almostinvincible119

Posted November 10, 2010 - 12:57 PM


Making a mistake man, I would love to have that 4spd in my 2010. Awesome gearing.

There's a thread or a sticky around here somewhere on it.

Try searching!

  • grayracer513

Posted November 10, 2010 - 02:44 PM


No YZ 5 speed trans will fit an '03-'05 YZ450 without more work than it's worth. The WR 5 speed is a bolt-in:

From Common Threads (the one the says look here first):


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