Ancaster Cycle

Shimano UN55 Square Taper English Threaded Bottom Bracket

Shimano UN55 Square Taper English Threaded Bottom Bracket
$39.95 - $40.99
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This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience.


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
68 x 107mm 689228778801 EBBUN55B07 SHI178596017
70 x 113mm 689228778856 EBBUN55I13 CAR49409177E
70 x 118mm 689228778849 EBBUN55I18 CAR49222886E
70 x 122.5mm 689228778832 EBBUN55I22 CAR4969071E
73 x 107mm 689228778726 EBBUN55C07 CAR49367012E
73 x 110mm 689228778825 EBBUN55C10 SHI172154810
73 x 113mm 689228778740 EBBUN55C13 SHI60880128R
73 x 118mm 689228778733 EBBUN55C18 SHI178418098
73 x 122.5mm 689228778863 EBBUN55C22 SHI61785611R
68 x 110mm 689228778887 EBBUN55B10 SHI176645150
68 x 113mm 689228778757 EBBUN55B13 SHI171652783
68 x 115mm 689228778894 EBBUN55B15 SHI60208210R
68 x 118mm 689228778795 EBBUN55B18 SHI174367288
68 x 122.5mm 689228778870 EBBUN55B22 SHI61408793R
68 x 127mm 689228778764 EBBUN55B27 SHI174183927
70 x 107mm 689228778788 EBBUN55I07 CAR49746685E
70 x 110mm 689228778771 EBBUN55I10 CAR4951867E


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