Kit 450cc Ø97mm ATHENA racing for Yamaha YZ 450 F from 2014 to 2017

Complete kit ATHENA high quality high performance! Aluminum cylinder with high quality Nicasil treatment, 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.

Original quality, improved compression and reduced friction, the temperature in the room will offer more performance 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.

Mounted on Yamaha YZ 450 F - 2014/2017