My Mechanic
SHIMANO 105 5500 Bottom Bracket Octalink Italian thread 70x118.5 mm
Bottom Bracket Shimano 105 5500 Octalink shank (star) for Shimano 105 9 speed.
Axis length 109.5 mm for double crankset FC5500, FC5501, FC5502. Axis length 118.5 mm for triple crankset FC5503, FC5504, FC5505.
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