Protaper 033181 PTR Rear Sprocket - Aluminum casual-wear-headwear-beanies Dyneema performance fiber

Dyneema performance fiber

2023 Kawasaki ZX636 Ninja ZX-6R ABS

1981-1982 Yamaha XJ550 Maxim

1990 KTM 500 MX

Protaper 033181 PTR Rear Sprocket - Aluminum casual-wear-headwear-beanies Dyneema performance fiberRace Spec (RS) Rear Sprockets feature our revolutionary Angled Mud Groove. This exclusive design creates a self cleaning effect during operation, shedding away mud that would otherwise lead to horsepower loss and sprocket wear. With their precise CNC machining and unique layout, these grooves also allow an increase in tooth surface area of up to 40% over competing sprockets. As a result, contact with the chain is significantly improved, leading to a