No Products in the Cart
BSA SquareBottom Bracket-Quare Hole
For 80/100mm Frame Shell
weight:about 348g(80x142mm) 420g(100x155/177mm)
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
[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.