Shimano UN55 Square Taper English Threaded Bottom Bracket
$39.99
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 |
|---|---|---|---|
| 107mm / English / Square Taper / 73mm | 689228778726 | EBBUN55C07 | BBS23177418M |
| 107mm / Italian / Square Taper / 70mm | 689228778788 | EBBUN55I07 | SHI50112194T |
| 113mm / Italian / Square Taper / 70mm | 689228778856 | EBBUN55I13 | SHI50962393T |
| 118mm / Italian / Square Taper / 70mm | 689228778849 | EBBUN55I18 | SHI50578224T |