Kit 450cc Ø95mm ATHENA racing for Yamaha YZ 450 F from 2003 to 2005 and WR 450 F from 2003 to 2006

Complete kit ATHENA of very high quality! Aluminum cylinder avaic Nicasil treatment of high quality, made in Italy.

VERTEX piston, high compression with pre-ground steel segmentation! Joint ATHENA (one of the best seal manufacturer in the world), we are clearly on the very top of the range.

The increase of the compression as well as the reduction of the friction, the temperature in the room will offer more performances to your motocross!

Mounts on :

Off-road Yamaha YZ 450 F - 2003/2005
Off-road Yamaha WR 450 F - 2003/2006