Shimano UN55 Square Taper English Threaded Bottom Bracket
Details
Shimano's BB-UN55 Square Spindle Bottom Brackets are the unofficial standard for English-threaded cartridge bottom brackets. Quality, value, and durability come together to keep you cranking for many, many miles.
- Fits JIS Square-Taper Cranksets
- Hollow spindle
- Crankarm fixing bolts not included
Part Numbers
| Option | UPC | MPN | Store SKU |
|---|---|---|---|
| 107mm / English / Square Taper / 68mm | 689228778801 | EBBUN55B07 | 210000021001 |
| 110mm / English / Square Taper / 73mm | 689228778825 | EBBUN55C10 | 210000007859 |
| 115mm / English / Square Taper / 68mm | 689228778894 | EBBUN55B15 | 210000007542 |
| 118mm / English / Square Taper / 68mm | 689228778795 | EBBUN55B18 | 210000007570 |
| 122.5mm / English / Square Taper / 68mm | 689228778870 | EBBUN55B22 | 210000007569 |
| 127mm / English / Square Taper / 68mm | 689228778764 | EBBUN55B27 | 210000007568 |