Renthal Ultralight Aluminum Rear Sprocket, 48-Tooth Orange (518U-420-48GPOR)

Upgrade your motorcycle’s drivetrain with the Renthal 518U-420-48GPOR Limited Edition Ultralight Rear Sprocket. Designed for GasGas, Husqvarna, and KTM applications, this 48-tooth aluminum chainwheel combines distinctive orange hard anodized styling with the performance-focused engineering expected from Renthal. Its limited-edition finish delivers a unique appearance while maintaining the durability required for demanding motocross, off-road, and competition use.

CNC machined from high-strength 7075-T6 aluminum, the Renthal Ultralight Rear Sprocket is engineered to provide a precise fit, consistent concentricity, and reliable load distribution. Its lightweight construction helps reduce unsprung and rotating mass compared with conventional steel sprockets, supporting responsive acceleration and agile handling without compromising drivetrain performance. The computer-engineered tooth profile promotes efficient chain engagement and maximum power transfer throughout the riding range.

The Renthal 518U-420-48GPOR is based on the same race-proven design used by top Renthal riders, including competition use during the Monster Energy Supercross Series. The 48-tooth configuration provides a practical gearing option for riders seeking dependable chain drive performance and precise power delivery. Built for riders who want factory-inspired performance with a standout finish, this rear sprocket is a high-quality replacement or upgrade for compatible GasGas, Husqvarna, and KTM motorcycles. Verify motorcycle fitment and chain compatibility before installation.

Features:

• Brand: Renthal

• Part Number: 518U-420-48GPOR

• Product Type: Ultralight aluminum rear sprocket

• Tooth Count: 48 teeth

• Material: CNC-machined 7075-T6 aluminum

• Finish: Limited edition orange hard anodized coating

• Weight Advantage: Approximately 66% lighter than comparable steel chainwheels

• Performance: Computer-engineered tooth profile supports efficient chain engagement and maximum power transfer

• Fitment: Designed for compatible GasGas, Husqvarna, and KTM motorcycles

• Racing Heritage: Developed from a design used by top Renthal competition riders

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