Renthal Ultralight Aluminum Rear Sprocket, 47-Tooth Black (518U-420-47GPBK)

Upgrade your motorcycle’s drivetrain with the Renthal Limited Edition Hard Anodised Ultralight Rear Sprocket, part number 518U-420-47GPBK. Designed for select Gas Gas, Husqvarna, and KTM applications, this 47-tooth aluminum sprocket combines a distinctive black finish with race-proven performance. Its limited-edition design offers a unique appearance while maintaining the durability and precision expected from Renthal components.
Renthal UltraLight Rear Sprockets are CNC-machined from high-strength 7075-T6 aluminum to exacting tolerances. The aluminum construction is substantially lighter than comparable steel sprockets, helping reduce unsprung and rotating weight for responsive handling and acceleration. Computer-aided engineering and testing support accurate fitment, excellent concentricity, and consistent load distribution throughout the sprocket.
The precision tooth profile is engineered to promote efficient power transfer and dependable chain engagement, making the Renthal 518U-420-47GPBK a suitable choice for demanding motocross, off-road, and competition use. This rear sprocket reflects the same performance-focused design seen on Renthal-equipped race motorcycles, while the hard-anodized black finish helps provide added surface protection and a clean, distinctive look. Confirm motorcycle fitment and gearing requirements before installation.

Features:

• Brand: Renthal

• Part Number: 518U-420-47GPBK

• Product Type: Ultralight aluminum rear sprocket

• Tooth Count: 47 teeth

• Finish: Limited-edition hard-anodized black

• Material: CNC-machined 7075-T6 aluminum

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

• Performance: Precision tooth profiling supports efficient power transfer and reliable chain engagement

• Application: Select Gas Gas, Husqvarna, and KTM motorcycles

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