PBR Front Sprockets MV Agusta F4 04 - 13 520 Chain mod

These PBR front sprockets are made from case hardened 18NcD5 steel and are treated with Dicronite © Dry Lube to increase corrosion resistance and sprocket life. Weight is reduced by lightening holes 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.