Hole Spindle Bicycle Bottom Bracket Crank Axis BSA Bottom Bracket Bottom Axle

BSA thread: BC1.37" x 24T. Axle: Boron steel. Shell Width: 68 mm. 68 x 124.5mm. 68 x 122.5mm. 68 x 121.5mm. 68 x 120mm. 68 x 118mm.

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