HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
moto278

yz450f bottom end

3 posts in this topic

i was just curious with the new yz450f (10-11) is the bottom end the same as any previous models? if not what changed for the new bike?

Share this post


Link to post
Share on other sites

No, it's not. The transmission and clutch is the same as the '06 and up, but just about everything else, including the crankcases, obviously, is different. The crank is different, and the bore center line is offset forward to reduce thrust loads and allow better power production at high RPM while still keeping the rod short.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0