Bike 80mm 100mm Square Tapered Bottom Waterproof Bracket Bsa Axis For Quare Hole
BSA SquareBottom Bracket-Quare Hole

For 80/100mm Frame Shell
weight:about 348g(80x142mm)  420g(100x155/177mm)

Size:
80x142mm
100x155mm
100x177mm

Cups thread size and pitch: 34.798mm 1.37*24TPI
Structure: 2 Sealed Bearings
The bottom bracket is solid and durable with a long service time.
The steel shell can absorb roundness tolerance for installing ports of Bracket Bottom.
Integrated System can protect the frame, more power output, it's better than ordinary structure bottom bracket.
Water and dust resistance.

Please choose the bottom bracket you need, and use BB tool to screw into frame for safety
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