Description
Mud and grit do more damage to a rear sprocket than mileage alone, packing into the tooth roots and grinding away at the chain rollers with every rotation. ProTaper built its Race Spec (RS) rear sprockets around a CNC-machined Angled Mud Groove that channels debris away from the tooth roots as the wheel spins, instead of letting it pack in and wear a groove into the chain. This blue 52-tooth rear sprocket is machined for Honda and Yamaha off-road models, and the groove layout also opens up roughly 40 percent more tooth surface area than a standard flat-plate design, so the chain rides on more material with every link that engages.
What makes this sprocket worth the swap:
- Angled Mud Groove design self-cleans during operation, shedding packed mud and dirt instead of trapping it against the chain
- CNC-machined tooth profile increases contact surface area versus flat competitor designs, which spreads load and slows wear
- Countersunk bolt holes self-center the sprocket onto the hub during installation, so no separate hub center guide tool is needed
- 52-tooth count for Honda and Yamaha off-road models, sold individually and ready to bolt on with stock hardware
- The blue anodized finish is a common pairing on Yamaha-blue builds and resists fading better than paint, so it still looks sharp after a season of mud and pressure-washer abuse.
A tall 52T count is built for low-speed torque, the kind of gearing hillclimb, trials-leaning, and technical single-track riders reach for when wheel speed matters more than a higher top gear. Because it shares the OEM mounting pattern, this sprocket drops in during a routine chain and sprocket kit change without any modification to the hub or axle.
