Shimano UN55 English SQUARE-JIS 73x118mm Bottom Bracket

$29.99

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

$29.99

Specs