450

What year did the 450 go to a 5 sp tranny?       thanx

What year did the 450 go to a 5 sp tranny?       thanx

As far as I know the 1999 WR400's up are five speeds. It was some of the YZ's that had four speeds.

As far as I know the 1999 WR400's up are five speeds. It was some of the YZ's that had four speeds.

 

Agree with what stevethe has said.  In addition,I believe the 2006 YZ450F was the last year of the 4 speed trans and they went to a five speed close ratio transmission in 2007 and has been the same since.

Agree with what stevethe has said.  In addition,I believe the 2006 YZ450F was the last year of the 4 speed trans and they went to a five speed close ratio transmission in 2007 and has been the same since.

Close but the 05 YZ450 was a four speed. The 06-09 YZ450 was the aluminuim frame five speed.

03 -05 YZ450S were 4 speeds.

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