Hubs Track Madison red contrast

 hubs double thread .- Trabocchi mechanizes these components from round 6061 aluminium round bar with a metal section of  71 mm.The hub housings  go through four different  processes  of mechanization before being finished, resulting in a bright polishing exposed to a process of anodizing in glossy red ,with an additional fifth mechanizing process on both two side ( faces ) in bright polishing. With 6000 ZZ sealed and armored wheel bearings that provide lightness and smoothness when turning.Forward  the final diameter of the flanges  is 70mm , opening between ends 100mm , rearward flanges of 70mm , opening between shreaths of 120mm; Thread of 35mm X 24 TPI for freewheels . For fixed , thread is 1.375 inch X 24 TPI .Also available threaded free pinion of 14 or 15 teeth 30mm X 26 TPI