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 |
|---|---|---|---|
| 110mm / English / Square Taper / 68mm | 689228778887 | EBBUN55B10 | 210000006843 |
| 110mm / English / Square Taper / 73mm | 689228778825 | EBBUN55C10 | 210000003772 |
| 115mm / English / Square Taper / 68mm | 689228778894 | EBBUN55B15 | 210000000954 |
| 118mm / English / Square Taper / 68mm | 689228778795 | EBBUN55B18 | 210000000953 |