Shimano BB-ES300 Octalink Bottom Bracket 68x113mm Hollow Type 00.3018.290.001 and incredibly durable

and incredibly durable

Secure closure system with loops to hold the straps in place on the back of the knee/shin to ensure the protector is fully secured

1 x 1700mm length hose with banjo bolt

which prevents it from getting caught in your bike’s spokes

Low Q-factor and increased heel clearance

Shimano BB-ES300 Octalink Bottom Bracket 68x113mm Hollow Type 00.3018.290.001 and incredibly durableTechnologies Octalink Compared the power transfer of OctaLinkwith 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. Specifications Axle Length Shell Width 113 68 mm (BC1. 37) 113 70 mm (M36) 113 73 mm (BC1. 37) 118 68 mm (BC1. 37) 118 70 mm (M36) 118 73 mm (BC1. 37) 121 68 mm (BC1. 37) 121 73 mm (BC1. 37) 126 68 mm (BC1. 37) 126 73