Kit 250cc Ø77mm ATHENA racing for Yamaha WR 250 F from 2001 to 2012 and YZ 250 F from 2001 to 2007

Very high quality ATHENA complete kit! Aluminum cylinder with high quality nicasil treatment, made in Italy.

VERTEX piston, high compression 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 compression as well as the reduction of friction, of the temperature in the room will offer more performance to your machine! Arises on your motocross 250cc 4T.

Mounts on :

Off-road (mx) Yamaha WR 250 F - 2001/2012
Off-road (mx) Yamaha YZ 250 F - 2001/2007