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    Wed: 9.30am to 5.00pm (UK)
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    01772 32 33 33
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    0044 1772 32 33 33
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CUSTOMER NOTICE: WE ARE CLOSED on Mondays and Tuesdays. All orders will ship Wednesday to Friday. Phones, and email, will also only operate on these days. If you need to contact us about an order, or anything else, you can use our WhatsApp number: 07985497351

Shimano UN-300 Square Taper

Product code: 11704

$23.71

In stock

Shimano UN-300 Square Taper

123mm x 68mm
123mm x 73mm
127.5mm x 68mm

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Great value square taper BB from Shimano.

  • Quality sealed bearing BB from Shimano!
  • Available in a variety of axle widths and BB shell sizes to suit almost any bike.
- New from Shimano, the UN-300 BB - the replacement for the tried-and-tested UN-26 BB.
- Maintenance-free sealed cartridge assembly with extra seal keeps out dirt, mud, and water.
- Adjustment-free installation keeps things nice and easy.
- Available in 122.5mm and 127.5mm axle length with 68mm shell OR 123mm axle length with 73mm shell, to fit a variety of setups.
- Supplied without crank bolts (available here).
- Weight: 122.5mm x 68mm - 286g

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Shimano UN-300 Square Taper

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  • © TartyBikes Ltd, 2026
  • Tel. (UK). 01772 32 33 33
  • Tel. (Intl). 0044 1772 32 33 33

TartyBikes Ltd, Units 3-4, Club Street, Bamber Bridge, Preston, PR5 6FN

  • Company No. 6131482
  • VAT. GB 860 0270 59

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