Renthal TwinRing Rear Sprocket 48-Tooth Orange (2240-520-48GPOR)

The Renthal TwinRing Rear Sprocket, part number 2240-520-48GPOR, combines the lightweight performance of aluminum with the long-term durability of steel. Its inner ring is manufactured from high-strength Ultralight 7075-T6 aluminum, while the outer ring uses electro-less nickel-coated steel for excellent wear resistance. The orange finish adds a distinctive look while maintaining the dependable performance expected from Renthal motorcycle drivetrain components.
The outer steel ring is expanded during installation and fitted over the aluminum inner ring, creating a secure interference fit. Combined with the wave-pattern design, this construction forms a permanent bond intended to last for the service life of the chainwheel. The outer ring uses only the material needed for strength and durability, helping keep overall weight lower than a comparable all-steel rear sprocket.
Flat socket-head screws provide additional strength during side impacts and help eliminate interference with the chain guide. Self-cleaning mud grooves between each tooth allow dirt and debris to clear more effectively, reducing buildup, chainwheel wear, and unnecessary weight. Compared with a standard all-aluminum sprocket, the Renthal TwinRing is designed to last up to three times longer while remaining substantially lighter than an all-steel rear sprocket.
Feature: Hybrid aluminum and steel construction balances low weight with extended service life. Feature: High-strength Ultralight 7075-T6 aluminum inner ring supports responsive performance. Feature: Electro-less nickel-coated steel outer ring resists wear and increases durability. Feature: Wave-pattern interference fit creates a secure, permanent bond. Feature: Flat socket-head screws improve impact strength and reduce chain-guide contact. Feature: Self-cleaning mud grooves help minimize dirt buildup and chainwheel wear. Feature: 48-tooth rear sprocket configuration with orange finish.

Features:

• Hybrid aluminum and steel construction balances low weight with extended service life

• High-strength Ultralight 7075-T6 aluminum inner ring supports responsive performance

• Electro-less nickel-coated steel outer ring resists wear and increases durability

• Wave-pattern interference fit creates a secure, permanent bond

• Flat socket-head screws improve impact strength and reduce chain-guide contact

• Self-cleaning mud grooves help minimize dirt buildup and chainwheel wear

• 48-tooth rear sprocket configuration with orange finish

Ships from Parts Unlimited.