Rear Sprocket – Grooved Silver 520-39 Teeth

Description

The Renthal Rear Ultralight Sprocket is a high-performance 39-tooth rear sprocket designed for 2006-2023 Yamaha YFM250, YFM700 Raptor, and YFZ450 models. CNC-machined from specially enhanced 7075-T6 aluminum alloy, it is 66% lighter than steel while maintaining exceptional durability. Featuring an advanced tooth profile, precise concentricity, and an optimized fit, this sprocket maximizes power transfer and extends chain life. Self-cleaning mud grooves at each tooth help prevent dirt buildup, improving performance and wear resistance. Engineered to withstand the demands of Supercross, Motocross, and Enduro racing, this ultralight sprocket is trusted by top factory race teams worldwide.