Moose Racing 51 teeth SprocketRef : ME02623A / 12111589

Moose Offroad Hard-Parts Rear Sprocket 51 Teeth (520) — a sprocket designed for the demanding tracks of motocross and enduro. Made from 7075 T651 aluminium, this sprocket undergoes additional heat treatment to limit deformation under stress and maintain stable geometry during hard rides. Machined 100% (no stamping or grinding), it features an optimised tooth thickness to maximise contact with the chain and ensure reliable torque transmission.

• Manufacturer Reference: 1211-251-51-11
• Brand: MOOSE OFFROAD HARD - PARTS
• Position: Rear
• Teeth: 51
• Pitch: 520
• Material: 7075 T651 Aluminium, silver finish

Ideal for riders looking for a lightweight, precise, and durable sprocket to fine-tune the gearing on soft or technical terrain. Its full machining ensures consistent tooth profiles and controlled wear, allowing for crisp gear changes and good chain retention even in severe conditions.

Common compatibilities: YAMAHA YZ 125 (2021), YZ 250 F (2019), YZ 250 (2019). Check the 520 pitch and the number of teeth suitable for your chain and setup before installation.