Threaded bottom brackets

BB-ES300 Bottom bracket with round hollow axle and multi-toothing for Octalink cranksets. Suitable for frames with BSA thread (68mm). Compared the power transfer of OCTALINK with the conventional square taper spindle, the 8-splined OCTALINK interface that connects bottom bracket and crank set increases the strength and rigidity for entire assembly. Product features - BB-ES300 Octalink 68mm BSA Bottom Bracket Model: BB-ES300 BB-Type: Octalink Threaded: BSA Threaded BB shell width: 68mm Axle length (choose variant) 113mm 118mm 121mm 126mm 113mm E-Type 118mm E-Type 121mm E-Type 126mm E-Type 121mm Chain Box 126mm Chain Box Material Steel/Resin Scope of delivery Shimano BB-ES300 Octalink 68mm BSA Bottom Bracket