Renthal Twinring Rear Sprocket (49T) 2240-520-49GPSI - KTM / Husqvarna / Gas Gas / Beta 1991-2025

Product Description

Experience the ultimate combination of light weight and exceptional longevity with the Renthal Twinring Rear Sprocket. Designed for riders who demand maximum durability without sacrificing performance, this innovative hybrid sprocket delivers three times the lifespan of a standard all-aluminum sprocket while remaining much lighter than a solid steel alternative.

The inner ring utilizes the same high-strength Ultralight 7075-T6 aluminum found in Renthal standard sprockets to reduce unsprung mass, while the outer ring features an electro-less nickel coated steel construction built for maximum wear resistance. Bound permanently through thermal expansion, the Twinring is built to conquer the harshest off-road and adventure riding conditions.

Top Features: Renthal Twinring Rear Sprocket

• Inner ring constructed from high-strength Ultralight 7075-T6 aluminum to reduce weight and enhance power transfer
• Outer ring made from electro-less nickel coated steel for ultimate durability and minimal material mass
• Permanently bonded via a 200°C thermal expansion fit combined with a secure wave pattern interface
• Flat socket head screws add structural strength during heavy side impacts and clear the chain guide
• Self-cleaning mud grooves integrated between each tooth prevent dirt build-up to reduce wear and weight

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: What makes the Twinring sprocket last longer than standard aluminum sprockets?
A: The outer ring is constructed from high-durability, electro-less nickel coated steel, allowing it to outlast a standard all-aluminum sprocket by up to 3 times.

Q: How is the steel outer ring attached to the aluminum inner ring?
A: The outer ring is heated and expanded at 200°C then fitted over the inner ring, creating a permanent interference fit backed by a wave pattern and flat socket head screws.

Expert Pro-Tip: When installing a hybrid or steel-toothed sprocket like the Twinring, always check your chain alignment and wear status. Because the steel outer ring provides significantly longer wear life, pairing it with a fresh or healthy chain ensures optimal engagement and prevents uneven wear patterns across the drivetrain.

Recommended Pairings:

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

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