Shimano UN55 Square Taper English Threaded Bottom Bracket
$29.99
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 | 210000006944 |
| 107mm / Italian / Square Taper / 70mm | 689228778788 | EBBUN55I07 | 210000011636 |
| 110mm / English / Square Taper / 73mm | 689228778825 | EBBUN55C10 | 210000028910 |
| 113mm / English / Square Taper / 73mm | 689228778740 | EBBUN55C13 | 210000017302 |
| 110mm / Italian / Square Taper / 70mm | 689228778771 | EBBUN55I10 | 210000011956 |
| 118mm / English / Square Taper / 73mm | 689228778733 | EBBUN55C18 | 210000017308 |
| 122.5mm / English / Square Taper / 68mm | 689228778870 | EBBUN55B22 | 210000006802 |
| 118mm / Italian / Square Taper / 70mm | 689228778849 | EBBUN55I18 | 210000012968 |