Pro Taper Race Spec MX Rear Drive Sprockets 420, 520 – Fits Honda – Rear

The perfect balance of weight, strength and durability

ProTaper Race Spec (RS) Aluminum Rear Sprockets are precision CNC machined to the strictest tolerances from the highest quality alloy that has been specially formulated for off-road motorcycle sprockets.

Laboratory designed by engineers, they achieve the perfect balance and optimization of key features like load distribution, reduction of un-sprung rotating mass, and tooth endurance. The result is a rear sprocket that is unparalleled in the market.

• 7075-T6 Heat Treated Aluminum
• Precision CNC machined to strictest of tolerances
• Deep penetrating anodized finish
• Exclusive window pattern engineered for optimum balance of weight and strength
• CNC machined edge chamfers and inlay for subsurface ProTaper sticker location
• Countersinks to concentrically locate sprocket regardless of hub center guide
• Exclusive “Angled Mud Groove” design on every tooth on both sides