Renthal Ultralight Aluminum Rear Sprocket, 46-Tooth Silver (518U-420-46GPSI)

Upgrade your motorcycle’s drivetrain with the Renthal 518U-420-46GPSI Limited Edition Hard Anodised Rear Chainwheel. Designed for GasGas, Husqvarna, and KTM applications, this 46-tooth silver rear sprocket combines lightweight performance, precise manufacturing, and the durability required for demanding riding conditions. Its limited-edition finish adds a distinctive look while reflecting the same high-performance design used by leading Renthal riders.
The Renthal UltraLight rear chainwheel is CNC-machined from 7075-T6 aluminum to tight tolerances for consistent fitment and dependable drivetrain operation. Compared with steel sprockets, its aluminum construction is engineered to reduce unsprung and rotating weight, helping support responsive acceleration, improved handling, and efficient power delivery. Computer-aided engineering and testing help maintain accurate concentricity and balanced load dispersion throughout the sprocket.
The tooth profile is developed to promote smooth chain engagement and maximum power transfer, making the Renthal 518U-420-46GPSI a practical choice for riders seeking race-inspired performance without unnecessary weight. The hard-anodized surface helps protect the sprocket from everyday wear while maintaining its clean silver appearance. Verify your motorcycle’s model and drivetrain specifications before installation to confirm compatibility.

Features:

• Brand: Renthal

• Part Number: 518U-420-46GPSI

• Application: GasGas, Husqvarna, and KTM motorcycles

• Tooth Count: 46 teeth

• Material: CNC-machined 7075-T6 aluminum

• Finish: Limited edition hard-anodized silver

• Design: UltraLight construction engineered to reduce weight compared with steel

• Performance: Computer-engineered for precise fitment, concentricity, and load dispersion

• Tooth Profile: Designed for smooth chain engagement and efficient power transfer

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