• Image of a Shimano BB-UN300 68mm Square Taper Bottom Bracket in black and silver against a white background.
  • Image of a Shimano BB-UN300 68mm Square Taper Bottom Bracket in black and silver against a white background.
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Shimano BB-UN300 68mm Square Taper Bottom Bracket

Shimano BB-UN300 68mm Square Taper Bottom Bracket

210000007390

$18.00 USD
$18.00 USD $18.00 USD
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The Shimano BB-UN300 cartridge style square taper bottom bracket is simple, reliable and works with a variety of cranksets and 68mm bottom bracket shells.

Size

3 in stock

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Description
Features
Specifications

Get Shimano quality and performance with this cartridge bearing square taper bottom bracket. It also gives better chain line stability with a chain line stabilizer.

  • Fits JIS square-taper cranksets
  • Crankarm fixing bolts sold separately
  • Hollow spindle
  • Replaces both BB-UN26 and BB-UN55
  • Sealed cartridge bearings
  • Cr-Mo axle
  • Spindle Interface Type: Square Taper JIS
  • BB Shell Width (mm): 68
  • Bottom Bracket Shell I.D.: 1.37
  • Spindle Length: 110, 113, 115, 118, 122.5, 127.5
  • Defined Color: Black
  • BB/Frame Interface: English
  • Thread-in or Press-in: Thread-in
  • Generation: UN300