Renthal 5240-520-49GPBK Rear Sprocket 520 Pitch 49T GP Black Aluminum

The Renthal 5240-520-49GPBK is a 49-tooth, 520-pitch GP Black rear sprocket engineered for serious off-road and motocross riders demanding the best in durability and performance. Manufactured from lightweight, high-strength 7075-T6 aircraft-grade aluminum, this sprocket delivers an exceptional strength-to-weight ratio over stock steel alternatives.

Renthal's GP (Grooved Profile) design features precision-machined relief grooves between the teeth, reducing overall weight while also helping to clear mud and debris — a critical advantage in off-road conditions. The hard black anodized finish provides excellent corrosion resistance and a clean, aggressive aesthetic that holds up to the rigors of trail and track use.

Key Features:

• 49 Teeth — optimized gearing for off-road acceleration and torque delivery
• 520 Chain Pitch — compatible with standard 520-series drive chains
• 7075-T6 Aluminum Construction — ultra-lightweight with high tensile strength
• GP Black Anodized Finish — hard-coat anodizing for corrosion and wear resistance
• Grooved Profile (GP) Design — reduces weight and aids in mud/debris evacuation
• Precision CNC machined for consistent tooth profile and reliable chain engagement
• Direct OEM-style fitment for easy installation

Renthal is a trusted name in professional motocross and off-road racing, supplying sprockets to factory race teams worldwide. The 5240-520-49GPBK is an ideal upgrade or replacement for riders looking to reduce unsprung weight and maintain precise, consistent power delivery through the drivetrain.