RK Alloy Racing Sprocket - 48T 520P - Gold

The RK Alloy Racing Sprocket is a lightweight rear sprocket designed for riders looking to reduce unsprung weight and fine-tune their motorcycle's drive ratio. Finished in a distinctive gold anodised look, it is sized for 520-pitch chains and carries a 48-tooth count suited to applications where stronger acceleration is the priority.

RK is a long-established Japanese manufacturer of chains and sprockets with a strong presence in both road racing and motocross. This alloy sprocket reflects the brand's focus on performance-oriented drivetrain components.

• 48-tooth rear sprocket for 520-pitch chains
• Lightweight alloy construction reduces unsprung rotating mass
• Gold anodised finish for corrosion resistance and visual appeal
• Racing-oriented design from a specialist drivetrain manufacturer

Always replace the sprocket together with the chain and, where practical, the front sprocket — mixing worn and new components accelerates wear on both.
Before fitting, verify the sprocket's bolt pattern and centre bore match your specific motorcycle model.
Torque all sprocket mounting bolts to your motorcycle manufacturer's specified value using a calibrated torque wrench.
After installation, check and set chain tension to the manufacturer's recommended specification before riding.
Inspect chain and sprocket teeth regularly — hooked, shark-fin or visibly worn teeth indicate the sprocket should be replaced.
Keep the chain properly lubricated at the interval recommended by your motorcycle manufacturer; a dry chain accelerates sprocket wear significantly.
Avoid high-pressure washing directed at the sprocket hub and bearings; rinse gently and re-lubricate the chain afterwards.
Aluminium alloy sprockets wear faster than steel — on high-mileage road bikes, expect a shorter service life than a steel equivalent and inspect more frequently.