Splined bottom bracket for use with Shimano Octalink chainsets. Octalink splined axle/crank arm interface - results in more rigid crank assembly compared to square tapered spindle. Neco Fat Bike Sealed Bottom Bracket - Square Taper - 100 x 159mm.
Shimano 105 BB-5500 Octalink Bottom Bracket - BSA Thread
Shimano BB-ES300 Octalink Bottom Bracket - All Sizes 68 & 73mm
Shimano BB-6500 Ultegra OCTALINK Bottom Bracket BSA 68mm Sealed Cartridge JAPAN
Shimano BB-ES300 Octalink Bottom Bracket - 68 x 121mm
Bike Bottom Bracket Tool For Shimano Install Remove Bottom Bracket 5in1 UK
Shimano Saint M810 Bottom Bracket HollowTech II 68/73mm
