
Shimano BB-ES300 68 x 121mm Hollow Type Bottom Bracket
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The Shimano ES300 bottom bracket is made to be used in conjunction with Shimano Octalink chainsets. The Octalink splined axle/crank arm interface creates a more rigid crank assembly compared to square tapered spindle.
Axle length / shell width_121_68mm_(BC1.37)
Spindle: Hollow pipe
Spindle: Octalink Features
Smooth and precise shifting performance with Hyperdrive technology
Quiet shifting operation by reduction of driving noise (48T)
Chain case compatible
ALIVIO logo (T4060), SHIMANO logo (T4010)
Better sealing performance (SM-BB52)
Colour options: Black