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
Option | Barcode | Manufacturer's Part Number | Store SKU |
---|---|---|---|
68 x 107mm | 689228778801 | EBBUN55B07 | |
70 x 113mm | 689228778856 | EBBUN55I13 | |
70 x 118mm | 689228778849 | EBBUN55I18 | |
70 x 122.5mm | 689228778832 | EBBUN55I22 | |
73 x 107mm | 689228778726 | EBBUN55C07 | |
73 x 110mm | 689228778825 | EBBUN55C10 | SHI50585225T |
73 x 113mm | 689228778740 | EBBUN55C13 | SHI50756598T |
73 x 118mm | 689228778733 | EBBUN55C18 | |
73 x 122.5mm | 689228778863 | EBBUN55C22 | |
68 x 110mm | 689228778887 | EBBUN55B10 | BBS23980807M |
68 x 113mm | 689228778757 | EBBUN55B13 | BBS23539628M |
68 x 115mm | 689228778894 | EBBUN55B15 | BBS23147717M |
68 x 118mm | 689228778795 | EBBUN55B18 | BBS23152251M |
68 x 122.5mm | 689228778870 | EBBUN55B22 | BBS23353696M |
68 x 127mm | 689228778764 | EBBUN55B27 | BBS23678894M |
70 x 107mm | 689228778788 | EBBUN55I07 | |
70 x 110mm | 689228778771 | EBBUN55I10 |