Shimano BB-UN55 Square Taper English Threaded Bottom Bracket 68 x 107 - $50 (Reston / Herndon / Sterling)

Shimano BB-UN55 Square Taper English Threaded Bottom Bracket 68 x 107 1

Shimano BB-UN55 Square Taper English Threaded Bottom Bracket 68 x 107 1 thumbnail

part type: crankset, bottom bracket, guards

condition: excellent

make / manufacturer: Shimano

model name / number: BB-UN55

QR Code Link to This Post

FOR SALE: One Lightly Used Shimano BB-UN55 Square Taper English Threaded Bottom Bracket, 68 Shell, 107 Spindle Length. Importantly, this high quality bottom bracket is very rare and apparently is no longer made or available. It is targeted for use on Single Speed or Fixed Gear bicycles and conversions.

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.

- Shell Width - 68mm
- Threading - British/ISO BC1.37 x 24
- Spindle Length - 107mm
- Fits JIS Square-Taper Cranksets
- Hollow Spindle
- Crankarm Fixing Bolts Not Included

post id: 7877831161

posted: 2025-08-30 15:58

updated: 2025-09-18 09:58

♥ best of ^[?]

reading

writing

saving

searching

refresh the page.

Shimano BB-UN55 Square Taper English Threaded Bottom Bracket 68 x...