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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

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$23.39 - $24.69
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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 Vendor Number
    68 x 107mm 689228778801 EBBUN55B07 GIA-17921
    70 x 113mm 689228778856 EBBUN55I13 QBP-CR5416
    70 x 118mm 689228778849 EBBUN55I18 QBP-CR5413
    70 x 122.5mm 689228778832 EBBUN55I22 QBP-CR5417
    73 x 107mm 689228778726 EBBUN55C07 QBP-CR5414
    73 x 110mm 689228778825 EBBUN55C10 GIA-17927
    73 x 113mm 689228778740 EBBUN55C13 GIA-17928
    73 x 118mm 689228778733 EBBUN55C18 GIA-17929
    73 x 122.5mm 689228778863 EBBUN55C22 GIA-17930
    68 x 110mm 689228778887 EBBUN55B10 GIA-17922
    68 x 113mm 689228778757 EBBUN55B13 GIA-17923
    68 x 115mm 689228778894 EBBUN55B15 GIA-17869
    68 x 118mm 689228778795 EBBUN55B18 GIA-17924
    68 x 122.5mm 689228778870 EBBUN55B22 GIA-17925
    68 x 127mm 689228778764 EBBUN55B27 GIA-17926
    70 x 107mm 689228778788 EBBUN55I07 QBP-CR5410
    70 x 110mm 689228778771 EBBUN55I10 QBP-CR5415
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