MOOSE RACING Rear Aluminum Sprocket - 40 Tooth - Yamaha 1857-40AL Beanie — 2017-2018 Yamaha YZ 250 FX

2017-2018 Yamaha YZ 250 FX Front: 2015

Ergonomic stretch insert on palm for added rider comfort

3 mm premium bovine leather

Composite plates will bounce back from hard hits and look great long after aluminum plates give up

Multi-paneled body

MOOSE RACING Rear Aluminum Sprocket - 40 Tooth - Yamaha 1857-40AL Beanie — 2017-2018 Yamaha YZ 250 FXComputer designed to meet your ATV needs CNC machined, not stamped like so many other sprockets Sprockets are constructed from 7075 T651 aluminum and hard anodized black for superb strength and light weight Moose's non grooved design means more aluminum stays in contact with the chain for longer sprocket life