Skip to main content
Note to our Great Customers: 
Update on our Shopping Center: 7 Mile Cycles is not being torn down, moving or closing its doors! Two new buildings are going to built in the same center that we are in and we will be moving into an all new space sometime in 2025!
We are very excited to see this project come together and look forward to our ALL NEW store at the corner of Higgins & Arlington Heights Road!
Click here to see the proposed development!
  1. Home
  2. Bicycling Catalog
  3. Parts
  4. Bottom Brackets
  5. Shimano

Shimano UN55 Square Taper English Threaded Bottom Bracket

Shimano UN55 Square Taper English Threaded Bottom Bracket
$23.49 - $29.99
Spindle:
Square Taper
Please select options Unavailable
This item is not permitted to be shipped, however it can be purchased online and picked up.

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 SHI32156715B
107mm / English / Square Taper / 73mm 689228778726 EBBUN55C07 BBS23589556M
110mm / English / Square Taper / 68mm 689228778887 EBBUN55B10 SHI32161025B
107mm / Italian / Square Taper / 70mm 689228778788 EBBUN55I07
110mm / English / Square Taper / 73mm 689228778825 EBBUN55C10
113mm / English / Square Taper / 68mm 689228778757 EBBUN55B13
113mm / English / Square Taper / 73mm 689228778740 EBBUN55C13
115mm / English / Square Taper / 68mm 689228778894 EBBUN55B15
110mm / Italian / Square Taper / 70mm 689228778771 EBBUN55I10
118mm / English / Square Taper / 68mm 689228778795 EBBUN55B18 SHI32295875B
118mm / English / Square Taper / 73mm 689228778733 EBBUN55C18
122.5mm / English / Square Taper / 68mm 689228778870 EBBUN55B22
113mm / Italian / Square Taper / 70mm 689228778856 EBBUN55I13
122.5mm / English / Square Taper / 73mm 689228778863 EBBUN55C22
127mm / English / Square Taper / 68mm 689228778764 EBBUN55B27
115mm / Italian / Square Taper / 70mm 689228778818 EBBUN55I15
118mm / Italian / Square Taper / 70mm 689228778849 EBBUN55I18
122.5mm / Italian / Square Taper / 70mm 689228778832 EBBUN55I22

Reviews