Upgrade your off-road performance with the MIKA METALS 50-1151 Rear Sprocket. This 51-tooth sprocket is crafted from high-quality aluminum, ensuring it can withstand the demands of rigorous off-road racing. It's designed to be lightweight yet durable, making it perfect for even the toughest conditions. Additionally, the self-cleaning grooves extend the life of the sprocket, while the innovative tooth design enhances power transfer. Extensively tested by top professionals, this rear sprocket is the ideal choice for serious riders looking to enhance their bike's performance. Features: * Material: High quality aluminum to withstand the rigors of off-road racing * Lightweight Design: Durable construction for even the worst conditions * Self-Cleaning Grooves: Long-lasting sprocket life * Power Transfer: Tooth design allows for increased power transfer * Professional Testing: Extensively tested by top professionals