Renthal Ultralight Rear Sprocket (48T) 154U-520-48GRBK - Honda CR125R / CR250R / CRF250R / CRF450R / XR400R 1984-2026

Product Description

The Renthal Ultralight Rear Sprocket is precision CNC-machined to deliver maximum power transfer with minimal unsprung weight for your Honda off-road or motocross machine. Built for championship-level performance, this sprocket balances ultimate weight savings with race-proven durability.

Forged from high-strength, specially enhanced 7075-T6 aluminum, this sprocket is significantly lighter than standard steel alternatives while maintaining exceptional tensile strength. The specialized tooth profile reduces friction and chain wear for smoother operation across every lap.

Top Features: Renthal Ultralight Rear Sprocket

• Precision CNC-machined construction replaces stamping for superior dimensional accuracy and strength.
• Engineered with a computer-aided ultra-light design to minimize unsprung weight and maximize power transfer.
• Manufactured from high-strength, specially enhanced 7075-T6 aluminum alloy that is 33 percent lighter than steel.
• Specialized tooth profile allows the chain to roll easily on and off for extended wear life, reduced noise, and increased efficiency.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Is this sprocket made of aluminum or steel?
A: It is precision-machined from high-strength, specially enhanced 7075-T6 aluminum, making it 33% lighter than steel.

Q: What chain pitch size is this sprocket designed for?
A: This sprocket is engineered specifically for a 520 chain size setup.

Expert Pro-Tip: Always inspect your chain and front sprocket when installing a new rear sprocket. Putting a new aluminum rear sprocket on a worn, hooked chain or countershaft sprocket will cause accelerated, uneven wear and drastically shorten component life.

Recommended Pairings:

• Honda 4-Stroke Performance Parts
• MX Chains
• Motorcycle Tools & Accessories

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