Description AMERICAN RETRO & SS BOTTOM BRACKET RETRO-American cups and bearings for your Profile Racing 3-Piece Race Style Crank set – comes with flat cups, sealed bearings, tube spacer and aluminum spacer washers. These are the original styled American BB cups, perfect for your vintage restoration. Silver or Black. For 19mm Axle & American BB. SS-American cups and bearings for your Profile Racing 3-Piece SS Style Crank set – comes with HOP-UP cups, sealed bearings, tube spacer and HOP-UP cones. These are the original styled SS BB cups, perfect for your vintage restoration. Silver only. For .875″ axle & American BB. Colors: Silver(Retro & SS) or Black(Retro only) Weight(Retro): 241g/8.43 oz
