Renthal Twinring Rear Sprocket 48-Tooth Black Honda (1540-520-48GPBK)

The Renthal Twinring Rear Sprocket, part number 1540-520-48GPBK, combines a high-strength aluminum inner ring with a durable nickel-coated steel outer ring for dependable performance and extended service life. Designed for compatible Honda motorcycles, this 48-tooth rear sprocket delivers a balanced combination of low weight, strength, and long-term durability for motocross, off-road, and performance riding applications.
The inner ring uses the same high-strength Ultralight 7075-T6 aluminum found in Renthal’s standard sprockets, while the outer ring is made from electro-less nickel-coated steel to withstand demanding chain loads and abrasive riding conditions. Renthal uses a precision interference-fit manufacturing process, expanding the outer ring before fitting it over the inner ring. Combined with the wave-pattern design, this creates a permanent bond intended to remain secure for the life of the chainwheel.
Additional durability comes from flat socket-head screws that reinforce the sprocket during side impacts while helping prevent contact with the chain guide. Self-cleaning mud grooves between the teeth help reduce dirt buildup, chainwheel wear, and unnecessary weight, making the sprocket well suited for muddy trails and harsh race conditions. Compared with a standard all-aluminum sprocket, the Renthal Twinring is engineered to last up to three times longer while remaining significantly lighter than an all-steel rear sprocket.
Designed as a direct-fit replacement for the specified Honda application, the Renthal Twinring Rear Sprocket provides reliable chain engagement, reduced rotating mass, and durable performance without sacrificing strength. Verify your motorcycle model, chain size, tooth count, and fitment before installation.

Features:

• High-strength construction: Uses a 7075-T6 aluminum inner ring and electro-less nickel-coated steel outer ring for an effective balance of weight and durability.

• Twinring design: Combines two materials through a precision interference fit and wave-pattern interface for a secure, long-lasting assembly.

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

• Self-cleaning grooves: Mud grooves between each tooth help prevent dirt buildup while reducing chainwheel wear and weight.

• Extended service life: Designed to outlast a standard all-aluminum sprocket by up to three times.

• Reduced weight: Lighter than an all-steel rear sprocket while maintaining durable performance.

• Application: Black, 48-tooth rear sprocket for compatible Honda motorcycles.

• Part number: Renthal 1540-520-48GPBK.

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