The Renthal Ultralight rear sprocket is built to cut unsprung weight and improve power transfer with a precision CNC-machined design. Made from high-strength 7075-T6 aluminum, it delivers race-ready durability with smoother, quieter chain engagement.
Reduce rotating mass and sharpen your bike’s response with the Renthal Ultralight Rear Sprocket. Its CNC-machined, computer-aided ultra-light design helps lower unsprung weight, allowing the suspension to react faster while improving power transfer to the rear wheel. Thanks to high-strength 7075-T6 aluminum and a refined tooth profile, you get a sprocket that’s lightweight, durable, and smoother in operation.
If your current sprocket feels heavy, noisy, or wears chains quickly, this upgrade helps the chain roll on and off more easily—resulting in longer service life, less drivetrain noise, and a more efficient feel under acceleration.