Renthal Aluminium Ultra - Light Self - Cleaning Hard Anodized Rear HA - 520 SprocketRef : RT00446A / 1075636032

RENTHAL Ultra-Light Mud-Resistant Hard Anodized Rear Sprocket - 520 (manufacturer part number: 224U-520-50GPPE): a sprocket designed for demanding riders, whether they ride motocross, enduro, or on a roadster trail/SM. Engineered to minimize mud retention and reduce friction between the chain and teeth, it enhances acceleration response on muddy terrain.

• Material: precision-machined 7075 T6 aluminum for an excellent balance of lightness and strength.
• Mud-Resistant Profile: tooth design optimized to shed mud and maintain smooth transmission in dirty conditions.
• Hard Anodization: surface layer that increases hardness and protects the aesthetic of the sprocket.
• Strategic Lightening: cutouts placed in critical areas to reduce inertia without sacrificing strength.
• Specifications: 50 teeth, pitch 520, color purple, standard type.

Result: a lightweight and robust sprocket designed to improve transmission responsiveness and withstand the demands of off-road riding. Compatible with 520 chains, it fits many machines — for example, GAS GAS SM 700 (2026), KTM 690 SMC R (2026), or DUCATI DESMO 450 MX (2026) — subject to verification of tooth count and pitch. Ideal for those seeking reliability and performance on both track and road.