Bottom Bracket Wrench for Bikes 12 Teeth and 16 Teeth Slots for Easy Use

For HOLLOWTECH: 16 teeth slots and 44 mm OD, suitable for many external thread types bottom bracket. For BB-9100: 16 teeth slots and 39 mm OD, suitable for Token, for Dura-Ace for BB9000. For BB-R60: 16 teeth slots and 41 mm OD, suitable for Ultegra 11 speed 6800.

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