Primary Drive Alloy Kit & 420 MC Chain Black Rear Sprocket For KAWASAKI KX100 1998-2009,2011-2021

Sprocket kits include the following: Stock size Primary Drive steel front sprocket. Stock size Primary Drive aluminum rear sprocket. Stock size Primary Drive 420 MC chain. Front sprockets are manufactured to O.E.M., specs using high grade hardened steel. Rear Aluminum Sprocket made from 7075 T-6 heat treated Aluminum. Come with self-cleaning grooves. All match original equipment exactly for perfect fit and size. The MC professional provides outstanding value in a chain without sacrificing strength or reliability. Average tensile strength 4,100 lbs. Color: Black Rear Sprocket