Kit 250cc Ø77mm ATHENA racing for Yamaha YZ 250 F from 2008 to 2013

Complete kit ATHENA of very high quality high performance! High quality nicasil treated aluminum cylinder, made in italy. VERTEX piston, high compression graphite with pre-ground steel segmentation!

Joint ATHENA (one of the best joint manufacturer in the world), we are clearly on the very high end. The increase in displacement, compression as well as the reduction of friction, of the temperature in the chamber will offer more performance to your machine!

This is all that make it a very robust and efficient kit. Mounts with the original cylinder head without modification of the latter.

Mounts on:

Yamaha YZ 250 F - 2008/2013