PBR Rear Sprockets Yamaha YZF R1 15-21 Ergal 525 Pitch 41T

These PBR 41T 525 Pitch rear sprockets are made from extremely strong and light Ergal 7075-T6 aluminium alloy that has been hard anodized to increase wear and corrosion resistance and the ability to retain lubricants. Weight is further reduced by lightening holes with chamfered slot and teeth have smoothed outside edges that reduce friction between the chain and sprocket, minimising transmission power loss.

 PBR is an Italian manufacturer of technologically advanced final drive sprockets for motorcycles and used extensively in MotoGP and WSBK. 46 years of research and development, careful selection of raw materials and precision production processes has provided continual growth and kept PBR at the forefront technical innovation.