Kit 500cc Ø102mm ATHENA racing for Yamaha YZ 450 F from 2010 to 2017

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

VERTEX piston, high compression graphite 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 cubic capacity, the compression as well as the reduction of the friction, the temperature in the room will offer more performances to your machine!

It's all that make it a very robust and powerful kit. Mounts on your motorcycle cross 4T with the original breech without modification of the latter.

Mounts on Off-road Yamaha YZ 450 F - 2010/2017