Renthal Rear Sprocket, Aluminum, 50-Tooth, Purple (441U-428-50GPPE)

Upgrade your motorcycle’s drivetrain with the Renthal 441U-428-50GPPE rear sprocket, engineered for riders who demand efficient power transfer, reduced unsprung weight, and dependable performance. This 50-tooth aluminum sprocket features a computer-aided ultra-light design that helps reduce rotating mass without compromising the strength required for demanding off-road use. Its purple finish adds a distinctive look while maintaining the high-performance design associated with Renthal components.
Renthal manufactures this rear sprocket using CNC-machined 7075-T6 aluminum rather than stamped construction. The specially enhanced aluminum alloy is approximately 33% lighter than comparable steel, helping improve acceleration response and handling while reducing weight at the rear wheel. The precision-machined construction supports consistent fitment and reliable drivetrain operation for compatible GasGas, Husqvarna, and KTM applications using a 428 chain.
A specially engineered tooth profile allows the chain to roll smoothly onto and off the sprocket. This design helps promote longer chain and sprocket wear, reduce drivetrain noise, and maintain efficient power delivery throughout the sprocket’s service life. The Renthal 441U-428-50GPPE is a practical performance upgrade for riders seeking a lightweight, durable rear sprocket with precise CNC construction and race-inspired functionality.
Features: CNC-machined aluminum construction for precise, consistent performance
Features: 7075-T6 aluminum provides high strength with reduced weight
Features: Approximately 33% lighter than steel for lower unsprung weight
Features: Special tooth profile promotes smooth chain engagement and release
Features: Designed to support longer wear, reduced noise, and efficient power transfer
Features: 50-tooth rear sprocket for compatible 428 chain applications
Features: Purple finish for a distinctive appearance
Features: Compatible with select GasGas, Husqvarna, and KTM motorcycles

Features:

• CNC-machined aluminum construction for precise, consistent performance

• 7075-T6 aluminum provides high strength with reduced weight

• Approximately 33% lighter than steel for lower unsprung weight

• Special tooth profile promotes smooth chain engagement and release

• Designed to support longer wear, reduced noise, and efficient power transfer

• 50-tooth rear sprocket for compatible 428 chain applications

• Purple finish for a distinctive appearance

• Compatible with select GasGas, Husqvarna, and KTM motorcycles

Ships from Parts Unlimited.