The World's Largest Online Bike Store
Click image to zoom

Shimano UN55 Square Taper Bottom Bracket

  • RRP$29.99
  • |
  • SAVE58%

Select  Colour
Select  Option
English Thread
Italian Thread
Select  Size
68 x 107mm
68 x 110mm
68 x 113mm
68 x 115mm
68 x 118mm
68 x 122.5mm
68 x 127mm
70 x 107mm
70 x 110mm
70 x 113mm
70 x 115mm
73 x 107mm
73 x 110mm
73 x 113mm
73 x 118mm
73 x 122.5mm
  • IN STOCK ( 5 +)

  • right This item ships to United States of America
  • right Shipping amount : $9.99
  • right 365 DAYS to return or exchange
  • right Pay by Bank Transfer or PayPal or Card

Shimano UN55 Square Taper Bottom Bracket

Shimano Road UN55 model has super-accurate bearings for smooth operation and improved durability.


  • A good quality bottom bracket for traditional chainsets
  • Super-accurate bearings for smooth operation and improved durability
  • Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
  • Lightweight hollow spindle
  • Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life
  • Fast and easy installation without adjustment
  • Narrow body allows clearance for cable routing under the bottom bracket

A 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).

Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Colour: Silver
  • Size: 73 x 110mm, 73 x 113mm, 73 x 118mm, 73 x 122.5mm, 70 x 107mm, 70 x 110mm, 70 x 113mm, 70 x 115mm, 68 x 113mm, 68 x 110mm, 68 x 118mm, 68 x 115mm, 68 x 127mm, 68 x 122.5mm, 73 x 107mm, 68 x 107mm
  • Option: English Thread, Italian Thread