ZTTO Bicycle 80mm 100mm Square Tapered Bottom Bracket BSA 80x142 100x155 100x177 80 100 Axis For Quare Hole For Fat Snow Bike

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.

[JIS STANDARD BOTTOM BRACKET]

This is an ordinary JIS standard square tapered bottom bracket, nothing special about it. Compatible with all JIS standard square taper crankset. Remember to check your old bottom bracket or ask your frame manufacturer for the right bottom bracket length.

3 size available

BSA80x142mm

BB96 100x155mm

BB96 100x177mm

[HOW TO INSTALL THE BOTTOM BRACKET]

A good bottom bracket also needs proper installation. First, clean the frame shell threads with clean rag, then heavily grease them or apply light thread lock. Then use a traditional splined bottom bracket tool to tighten the bottom bracket to 50-70 nm. If you do not follow these steps, the bottom bracket could be likely to produce strange noise and been prematurely worn out.