Description
The Renthal Ultralight Rear Sprocket is a high-performance 51-tooth rear sprocket designed for 2004-2023 Kawasaki KX125, KX450XC, and related models. Precision CNC-machined from 7075-T6 aluminum alloy, it is 66% lighter than steel while maintaining exceptional durability. The advanced tooth profile ensures optimal power transfer and long lifespan, while self-cleaning mud grooves prevent debris buildup for improved wear resistance. Engineered for motocross, supercross, and enduro use, this sprocket is trusted by top factory race teams worldwide.








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