Renthal 121U-420-47GBSI Ultralight Rear Sprocket - Silver - 47T drive-primary-drive It offers a unique solution

It offers a unique solution of multiple lubricants

Replacement OEM #7042129

Length: 24mm

Includes a 2

1982-1983 Yamaha YZ80

Renthal 121U-420-47GBSI Ultralight Rear Sprocket - Silver - 47T drive-primary-drive It offers a unique solutionMarketing Color: Silver Material: Aluminum Sprocket Position: Rear Sprocket Teeth: 47 Renthal Ultralight rear chainwheels are manufactured to exteremly tight tolerences from a special material developed to withstand the rigours of Supercross, Motocross and Enduro. The 7075 T6 aluminium alloy rear chainwheels are 66% lighter than steel, yet incredibly durable. Their advanced tooth profile, concentricity and accuracy of fit provide maximum power