Moose Racing 1857-40AL Aluminum Rear Sprocket - 40T

Material: Aluminum
Sprocket Position: Rear
Sprocket Size: Not Available
Sprocket Teeth: 40

The 7075 T-651 aluminum we use for these sprockets receives an extra tempering which reduces distortion and provides optimal thickness vs. typically thinner 7075 T-6 sprockets. 100% machined, no stamping or grinding. Optimal tooth thickness results in maximum tooth and chain contact. We leave the cleaning grooves out of our sprockets, because more aluminum contacting your chain means longer chain and sprocket life. Moose Racing rear sprockets come anodized in black; select rear sprockets are available in red, orange and blue. Made in the USA.

Vehicle Fitment:

2008-2013 Yamaha YFM250 Raptor
2004-2013 Yamaha YFM350 Raptor
1987-2004 Yamaha YFM350X Warrior
2013-2019 Yamaha YFM700 Raptor
1989-2006 Yamaha YFZ350 Banshee
2004-2009 Yamaha YFZ450
2012-2013 Yamaha YFZ450