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Shimano Dura Ace 7710 NJS Octalink bottom bracket

❌ SOLD OUT

This NJS approved & certified bottom bracket is specifically designed for use with Dura Ace 7710 track crank arms.

• 68mm English threaded (1.370" x 24 tpi)

• spindle: 109.5mm Octalink

• sealed cartridge bearings

• NJS approved

crank arm bolts & dust caps sold separately

• requires Park Tool BBT-22 for installation & removal

• weight: 230g

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