REAR SPROCKET TWINRING KTM, RENTHAL 2240-520-52GPSI
Renthal Twin Ring 520 Rear Sprocket 2240-520-52GPSI. Developed over 5 years, this is the longest lasting and most durable off-road sprocket available. Its unique flat face design minimizes weight, making the TwinRing as narrow as a regular chainwheel. The inner ring is constructed from high-strength Ultralight 7075 T6 Aluminium, while the outer ring is Electroless Nickel Coated steel. The outer ring is expanded at 200 °C and then fitted to the inner, creating a permanent bond for the life of the sprocket.
- SKU
- SR990-52.REN.TR
- Brand
- Renthal
- Availability
- In Stock (5)
FULL DESCRIPTION
Renthal TwinRing Rear Sprocket
The Renthal TwinRing Rear Sprocket is engineered for maximum durability and longevity in off-road riding conditions. Developed over five years, this sprocket is designed to be the longest-lasting and most robust off-road sprocket available.
Its unique flat face design minimizes weight while maintaining a narrow profile, comparable to standard chainwheels.
Key Features:
- Dual Material Construction: Features a high-strength, ultralight 7075 T6 aluminum inner ring bonded to an electroless nickel-coated steel outer ring.
- Permanent Bond: The outer ring is expanded at 200°C and then fitted to the inner ring, creating a permanent, lifelong bond.
- Exceptional Durability: The combination of materials and construction provides superior wear resistance for extended use.
- Lightweight Design: The flat face and aluminum inner ring contribute to a minimal weight without compromising strength.
- Narrow Profile: Designed to be as narrow as a regular chainwheel, ensuring compatibility.


