SHIMANO 105 BB-5500 OCTALINK BSA BOTTOM BRACKET 68MM trek kids Chainring Mounting: Hope Direct Mount

Chainring Mounting: Hope Direct Mount

Easy to service and replaceable parts

Top Spocket Min: 11T

Originally designed for the banked turns of the velodrome

DMR provides a platform pedal for those looking for a composite pedal that is both durable and affordable

SHIMANO 105 BB-5500 OCTALINK BSA BOTTOM BRACKET 68MM trek kids Chainring Mounting: Hope Direct MountBB 5500 Bottom bracket with round hollow axle and multi toothing for the 105 Octalink crankset. 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. Specification Shimano 105 BB 5500 Octalink BSA Bottom Bracket 68mm Use: Road Group: 105 Model: BB