Renthal Twinring Rear Sprocket 49-Tooth Blue for Honda and Yamaha (1500-520-49GPBU)

The Renthal Twinring rear sprocket, part number 1500-520-49GPBU, combines a lightweight aluminum inner ring with a highly durable steel outer ring to deliver dependable performance for Honda and Yamaha motorcycles. The inner ring is manufactured from high-strength Ultralight 7075-T6 aluminum, while the outer ring features an electroless nickel coating for enhanced durability and corrosion resistance. Its blue finish adds a clean, performance-focused appearance.
The Twinring design uses a minimal-material outer ring to reduce weight without sacrificing strength. During manufacturing, the outer ring is expanded with heat and fitted over the aluminum inner ring, creating a secure interference fit. This construction, combined with Renthal’s wave-pattern design, forms a permanent bond intended to remain reliable throughout the life of the chainwheel. Flat socket-head screws reinforce the sprocket during side impacts and help prevent interference with the chain guide.
Self-cleaning mud grooves between each tooth help shed dirt and debris, reducing buildup and minimizing chainwheel wear. With a 49-tooth configuration, the Renthal 1500-520-49GPBU is engineered to provide a strong balance of durability and reduced rotating weight. It can last up to three times longer than a standard all-aluminum sprocket while remaining significantly lighter than an all-steel rear sprocket, making it a practical upgrade for demanding riding conditions.

Features:

• 49-tooth rear sprocket configuration for compatible Honda and Yamaha motorcycles

• High-strength Ultralight 7075-T6 aluminum inner ring reduces rotating weight

• Electroless nickel-coated steel outer ring provides enhanced durability

• Interference-fit construction and wave pattern create a permanent bonded assembly

• Flat socket-head screws add strength during side impacts and help eliminate chain-guide contact

• Self-cleaning mud grooves between teeth reduce dirt buildup and chainwheel wear

• Designed to last up to three times longer than a standard all-aluminum sprocket

• Blue finish delivers a distinctive performance appearance

Ships from Parts Unlimited.