Renthal TwinRing Rear Sprocket 50-Tooth Black for Kawasaki and Suzuki (1120-520-50GPBK)

Upgrade your motorcycle’s final-drive performance with the Renthal TwinRing rear sprocket, part number 1120-520-50GPBK. Designed for compatible Kawasaki and Suzuki applications, this 50-tooth chainwheel combines a lightweight aluminum inner ring with a highly durable steel outer ring. The black finish provides a clean, race-inspired appearance while the dual-material construction helps deliver long service life under demanding riding conditions.
The inner ring is manufactured from high-strength Ultralight 7075-T6 aluminum, the same proven material used for Renthal’s standard sprockets. The outer ring is made from electro-less nickel-coated steel for enhanced durability and wear resistance. Renthal uses a minimum-material design to reduce weight, while the steel ring delivers significantly greater longevity than a conventional all-aluminum rear sprocket. This TwinRing design can last up to three times longer than a standard all-aluminum sprocket while remaining lighter than an all-steel alternative.
The outer ring is expanded at 392 degrees Fahrenheit before being fitted over the aluminum inner ring. This interference fit, combined with the distinctive wave pattern, creates a permanent bond intended to remain secure throughout the chainwheel’s service life. Flat socket-head screws provide additional strength during side impacts and help eliminate interference with the chain guide, supporting reliable performance during aggressive off-road riding.
Self-cleaning mud grooves between each tooth help prevent dirt buildup, reduce chainwheel wear, and contribute to the sprocket’s lightweight construction. With its durable steel wear surface, strong aluminum core, and application-specific 50-tooth gearing, the Renthal 1120-520-50GPBK TwinRing rear sprocket is a practical choice for riders seeking dependable drivetrain performance and extended component life.

Features:

• High-strength Ultralight 7075-T6 aluminum inner ring helps reduce overall sprocket weight

• Electro-less nickel-coated steel outer ring provides enhanced durability and wear resistance

• TwinRing interference-fit construction creates a secure, permanent bond between the inner and outer rings

• Wave-pattern outer ring design supports long-term structural integrity

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

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

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

• Lighter than an all-steel rear sprocket

• 50-tooth black rear sprocket for compatible Kawasaki and Suzuki motorcycles

Ships from Parts Unlimited.