JT Sprockets Self-Cleaning Steel Rear Sprocket - 51T - JTR808.51SC

JT SC is the new standard in steel rear motocross sprockets.
Unique self-cleaning design that keeps the contact area clean from dirt and mud while significantly reducing weight.
Heat-induction hardened C45 steel lasts up to six times longer than a 7075 aluminum sprocket and greatly extends chain life.
Engineered and finished to the highest quality level in black zinc.