SuperProx Cour SPX 245/2.2 51 BLACK - Black 51 teeth SprocketRef : SUP00102A / CA304SN51

SPX 245/2.2 51 BLACK Sprocket - Black 51 teeth by SuperProx

Bi-metal Stealth sprocket designed for enduro and motocross, engineered to provide an optimal balance of strength and weight through the combination of steel and aluminium. The forged riveting and Stealth design are developed to withstand extreme riding conditions and reduce the frequency of replacement. Suitable for riders and teams seeking a robust and durable sprocket.

Design and materials

• Bi-metal Steel/Alu design in Stealth version claimed to be 10 to 50% lighter than a steel sprocket depending on the model, for a better weight/mechanical strength compromise
• Forged riveting used on the sprocket with over 6 million rivets installed without breakage according to the manufacturer, ensuring a durable fixation under intensive use

Usage and performance

• Designed for extreme riding conditions to absorb more engine torque than standard aluminium sprockets, beneficial on demanding terrains
• Announced lifespan three times greater than a standard aluminium sprocket under equal conditions and performance, reducing the frequency of replacements

Practicality and features

• 51 teeth allowing for a direct replacement to maintain the original gearing
• Black finish facilitating aesthetic integration on most enduro and motocross bikes

Advantages

• Confirmed Cross type in product specifications, compatible with the mentioned Enduro and Cross uses
• OEM Reference RST-245:51-BLK

Examples of compatible bikes

• YAMAHA YZ 450 F 450 (2026)
• FANTIC XXF 450 450 (2026)
• YAMAHA WR 450 F 450 (2026)

Complete list of compatible bikes available in the dedicated section below