Overview： Self-Aligning External Threaded Bottom Bracket Set
◎ It can properly correct the poor perpendicularity of the assembled external crankset and axle and the eccentricity caused from left/right thread and BB shell. Function of waterproof is also added.
Specification:
◎ Fits Road bikes
◎ 2 Sealed Bearings
◎ For Shell 68mm & 73mm
◎ Ceramic Bearing Available
◎ Weight: 102g
Self-Aligning External Threaded Bottom Bracket Set