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.
-For MTB and Road
- For ID:30mm Spindle
- For OD:41mm
Model No:BB4130SM Seal bearing, weight:50g
Model No:BB4130CM Ceramic bearing, weight:47g