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
|107mm / English / Square Taper / 73mm||689228778726||EBBUN55C07||BBS30542614D|
|110mm / English / Square Taper / 68mm||689228778887||EBBUN55B10||BBS23522413M|
|110mm / English / Square Taper / 73mm||689228778825||EBBUN55C10||BBS2395547M|
|113mm / English / Square Taper / 73mm||689228778740||EBBUN55C13||BBS23451939M|