Renthal Rear Sprocket, Aluminum, 48-Tooth, Silver (441U-428-48GPSI)

Upgrade your motorcycle’s final-drive performance with the Renthal 441U-428-48GPSI rear sprocket. Designed for GasGas, Husqvarna, and KTM applications, this 48-tooth sprocket is CNC-machined rather than stamped for precise manufacturing, consistent tooth geometry, and dependable strength. Its silver aluminum construction helps reduce unsprung weight while supporting efficient power transfer from the engine to the rear wheel.
The high-strength, specially enhanced 7075-T6 aluminum is approximately 33% lighter than comparable steel while maintaining the durability needed for demanding riding conditions. Reduced rotating and unsprung mass can help improve throttle response, suspension action, and overall handling without sacrificing sprocket strength. The lightweight design makes this Renthal sprocket a practical performance upgrade for riders seeking responsive acceleration and reduced drivetrain weight.
A specialized tooth profile allows the chain to roll smoothly onto and off the sprocket. This design helps promote longer chain and sprocket wear, reduce operating noise, and transfer power more efficiently through the drivetrain. Built for reliable fit and performance, the Renthal 441U-428-48GPSI provides a durable replacement or upgrade solution for compatible GasGas, Husqvarna, and KTM motorcycles. Verify chain size, tooth count, and vehicle application before installation.

Features:

• CNC-machined construction: Manufactured rather than stamped for precise tooth geometry and consistent performance.

• 7075-T6 aluminum: High-strength, specially enhanced aluminum helps reduce weight while maintaining durability.

• Lightweight design: Approximately 33% lighter than steel to reduce unsprung and rotating mass.

• Special tooth profile: Promotes smooth chain engagement and release for longer wear, reduced noise, and efficient power transfer.

• Application fitment: Designed for compatible GasGas, Husqvarna, and KTM motorcycles using a 428 chain.

• Tooth count: 48-tooth configuration for tailored final-drive performance.

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