05 125 sx piston size

What the size piston for this year 54mm??

Yes 54mm, I just redid top end on my 04 and motor should be same. I put a wiesco 54mm top end kit in it with piston etc.

Yes 54mm, I just redid top end on my 04 and motor should be same. I put a wiesco 54mm top end kit in it with piston etc.

thanks my bike is runs pretty strong but i want to get new rings

Have you done a compression test on it? If it's under 120 or so than I'd agree new rings will make it alot more fun!

Edited by KGAP1

the wiseco comes as a kit?

i  mean with a cylinder gasket and head o-ring?

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