The MORTOP Bottom Brackets guarantee you the lowest friction, optimised power transfer, and longest product lifetime, helping you to save watts or ride faster. The combined with the smoothness of the balls results in virtually no wear on the bearing.
-BB 30mm reduce to 24mm.
For Shimano System,
Model:BB3024S1 seal bearing.
Model:BB3024C1 ceramic bearing.
For SRAM System,
Model:BB3024S2 seal bearing.
Model:BB3024C2 ceramic bearing.