Bike Bottom Bracket 68mm 73mm BC-73 103-127mm Bicycle MTB BB68 Square Hole Bearing Center Axle BC1.37 24T 103-127mm

Specification:

1--Thread B.C. 1.37*24T

2--Suitable for 68mm or 73mm Frame Bottom Braket

3--Total length:113mm,116mm,118mm,120mm,124.5mm,126mm,127.5mm

4--N.W:About 300g

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