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> Bicycling Catalog > Parts > Bottom Brackets > Shimano > UN55 Square Taper English Threaded Bottom Bracket
 
Shimano UN55 Square Taper English Threaded Bottom Bracket

Shimano UN55 Square Taper English Threaded Bottom Bracket

 

Product Details

Shimano UN55 Square Taper English Threaded Bottom Bracket

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 close open

    Option Barcode Manufacturer's Part Number Store SKU
    73 x 122.5mm 689228778863 EBBUN55C22 1058
    68 x 110mm 689228778887 EBBUN55B10 6370
    68 x 113mm 689228778757 EBBUN55B13 1054
    68 x 115mm 689228778894 EBBUN55B15 6371
    68 x 122.5mm 689228778870 EBBUN55B22 1056
    68 x 127mm 689228778764 EBBUN55B27 1057
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