C-Bear BB386EVO to 24mm Bottom Bracket

C-Bear BB386EVO to 24mm Bottom Bracket The C-Bear BB386EVO to 24mm Bottom Bracket allows your cranks to rotate with smoother action by reducing frictional drag. The CNC aluminium cups house ceramic bearings; which perform superbly thanks to their incredible hardness and seriously smooth surface. The internal diameter is 24mm; allowing for the integration of a range of popular cranksets including Shimano Hollowtech II; FSA Mega Exo and Rotor 3D.