RENTHAL Sprocket - Yamaha - 40 Tooth 130U-520-40GBSI RK-Series Air Intake System Inspired by the championship winning

Inspired by the championship winning Works pipe

Includes billet aluminum pressure plate and heavy-duty spring

circlips and a top end gasket kit

excellent absorption and features an integrated support shank for an enhanced sole rigidity

Strategic engineering increases oil flow

RENTHAL Sprocket - Yamaha - 40 Tooth 130U-520-40GBSI RK-Series Air Intake System Inspired by the championship winningCNC machined from a specially enhanced 7075 T6 aluminum alloy Machined self cleaning mud grooves at each tooth to help increase wear resistance All rear sprockets are the ultralight design, making them 66 percent lighter than steel, yet incredibly durable