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Shimano UN55 Square Taper English Threaded Bottom Bracket

Shimano UN55 Square Taper English Threaded Bottom Bracket
$23.99
Length: Select length
Model: Select model
Width: Select width
Spindle: Square Taper
Please select options Unavailable
This item is not permitted to be shipped. However, it can be purchased online and picked up at our store locations. A $25 destination fee will be collected in store for all online bike sales. An additional $15 battery recycling fee will be collected in store for all e-bike sales. See policy page for details.

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 / 68mm 689228778801 EBBUN55B07 210000005225
107mm / English / Square Taper / 73mm 689228778726 EBBUN55C07 210000006806
110mm / English / Square Taper / 68mm 689228778887 EBBUN55B10 210000002358
110mm / English / Square Taper / 73mm 689228778825 EBBUN55C10 210000006804
113mm / English / Square Taper / 73mm 689228778740 EBBUN55C13 210000006805
118mm / English / Square Taper / 73mm 689228778733 EBBUN55C18 210000006210
118mm / Italian / Square Taper / 70mm 689228778849 EBBUN55I18 210000007093
122.5mm / English / Square Taper / 73mm 689228778863 EBBUN55C22 210000001541

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