Coating for bicycle-carbon rims, has hollow glass spheres which are applied on braking surface, where hollow spheres have certain diameter, where hollow spheres are mechanically drummed

摘要

The coating has hollow glass spheres which are applied on the braking surface, where the hollow spheres have a diameter of 0.005 to 0.06 millimeter, particularly between 0.01 and 0.03 millimeter. The hollow spheres are mechanically drummed. The braking surface is additionally roughened. The rim is additionally roughened. The rims are made of steel or aluminum.