
Moose Offroad Hard-Parts Rear Sprocket — manufacturer reference 1210-251-50-12X. Designed for muddy terrains and trail/enduro use, this rear sprocket combines a 7075-T6 aluminium inner ring and a reinforced steel outer ring to achieve a good balance between lightness and robustness. Its blue finish adds a racing touch while remaining functional on the trails.
Ideal for enduro and motocross riders looking for a resilient part without excessively adding weight to the overall transmission. Suitable for models such as YAMAHA YZ 125 (2026), YZ 125 Monster Energy (2025), and YZ 250 50th Anniversary (2024). Standard installation and maintenance: regularly check the wear of the chain and sprocket to preserve the longevity of the transmission.