Shimano UN300-K Square Taper English Bottom Bracket (Silver) (BSA) (68mm) (110mm) (For Chain Case)

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Price: $15.75

Spindle Length:

  • 110mm
  • 117.5mm
  • 118mm
  • 122.5mm
  • 127.5mm
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Shimano BB-UN300 Square Spindle 68mm Bottom Bracket.


  • Fits JIS square-taper cranksets
  • Crankarm fixing bolts sold separately
  • Hollow spindle
  • For Chain Case

Frame Interface: BSA/English Threaded
Spindle Interface: Square Taper JIS
Bottom Bracket Shell ID: 1.37
Shell Width: 68mm
Spindle Lengths: 110mm, 117.5mm, 118mm, 122.5mm, 127.5mm
Color: Silver
Weight: TBD

This product was added to our catalog on May 9, 2022