Shimano UN55 Square Taper English Threaded Bottom Bracket
$21.99 - $24.99
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 |
|---|---|---|---|
| 113mm / English / Square Taper / 68mm | 689228778757 | EBBUN55B13 | 210000000798 |
| 118mm / English / Square Taper / 73mm | 689228778733 | EBBUN55C18 | 210000001001 |
| 118mm / Italian / Square Taper / 70mm | 689228778849 | EBBUN55I18 | 210000003063 |
| 122.5mm / English / Square Taper / 73mm | 689228778863 | EBBUN55C22 | 210000001002 |