Moose Racing Dual Rear Sprocket 51-Tooth Black for Yamaha (1210-251-51-10X)

Built for demanding off-road riding, the Moose Offroad Dual Rear Sprocket combines the low weight of aluminum with the durability of steel. This hybrid construction is designed to outlast standard aluminum rear sprockets while remaining lighter than conventional steel alternatives, helping provide a balanced combination of performance, strength, and long-term value for compatible Yamaha motorcycles. The black finish adds a clean, durable appearance suited to a wide range of off-road setups.
The inner ring is manufactured from 7075-T6 aluminum for a strong, lightweight foundation, while the outer ring uses heavy-duty steel to handle the repeated impact and load associated with aggressive riding conditions. This two-material design helps reinforce the sprocket’s tooth area while reducing unnecessary weight compared with an all-steel rear sprocket. The 51-tooth configuration is engineered for compatible Yamaha applications and should be matched to the motorcycle’s drivetrain specifications before installation.
Self-cleaning mud grooves between each tooth help reduce dirt buildup and support consistent chain engagement in muddy, dusty, and wet terrain. By allowing debris to clear more effectively from the tooth area, the groove design helps promote smoother operation and reduces the risk of packed-in contaminants affecting sprocket and chain performance. Install the Moose Offroad Part 1210-251-51-10X with a compatible chain and properly maintained drivetrain components for dependable off-road service.

Features:

• Hybrid construction: Combines a lightweight 7075-T6 aluminum inner ring with a heavy-duty steel outer ring.

• Durable performance: Designed to outlast standard aluminum rear sprockets while weighing less than comparable steel sprockets.

• Self-cleaning mud grooves: Grooves between each tooth help prevent dirt and mud buildup for more consistent chain engagement.

• 51-tooth configuration: Designed for compatible Yamaha motorcycle applications.

• Black finish: Provides a clean appearance and added protection for off-road use.

• Part number: Moose Offroad 1210-251-51-10X.

Ships from Parts Unlimited.