Bikeparts+ Loyalty Scheme - Earn points with every purchase!
Trustpilot
Shimano-BB-UN300-bottom-bracket-British-thread,-68---118-mm
BIKEPARTS+

Shimano BB-UN300 bottom bracket British thread, 68 - 118 mm

Vendor: Shimano

SKU: BBUN300B18

£10.99 £24.99
Tax included. Shipping calculated at checkout.

Available in stock

Fast UK Shipping
Genuine Aftermarket Products
Min. 12 Month Warranty
Easy Returns
  • 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
  • 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
Payment & Security
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Trending essentials

Park Tool CM-5.3 - Cyclone Chain Scrubber
BIKEPARTS+

Park Tool

Park Tool CM-5.3 - Cyclone Chain Scrubber

£21.49 £34.99
Aeroe Spider Rear Rack
BIKEPARTS+

Aeroe

Aeroe Spider Rear Rack

£82.30 £139.99
Park Tool TW-6.2 - Ratcheting Torque Wrench: 10-60Nm; 3/8 Drive
BIKEPARTS+

Park Tool

Park Tool TW-6.2 - Ratcheting Torque Wrench: 10-60Nm; 3/8 Drive

£89.95 £119.99
Park Tool Ratcheting Metric Wrench

Park Tool

Park Tool Ratcheting Metric Wrench

From £9.99 £13.99
Continental Gatorskin Tyre - Wire Bead: Black/Black 700X28C
BIKEPARTS+

Continental

Continental Gatorskin Tyre - Wire Bead: Black/Black 700X28C

£34.38 £42.99
Aeroe 12 Litre Dry Bag Dry
BIKEPARTS+

Aeroe

Aeroe 12 Litre Dry Bag Dry

£42.18 £59.99

Overall rating: 5.0 / 5 from 2 reviews.

AI Generated Review Summary

Summary topics

Review topics: [].

Review highlights

Reviews

SHIMANO Square Taper Bottom Bracket

"Worth a little bit extra for Shimano imho. I fit a new one at the start of the season, rather than risk an issue whilst touring. Bikeparts. co. uk competitive on price with reasonable delivery that isn't Evri what more can I say. . ."

— DAVID S. (5/5)

Great prices

"Great prices for a staple item I needed. Sent very quickly too 😁"

— Gavin D. (5/5)

Q&A

Customer Service

Mon-Fri, 8.30am-5.30pm

Call Us

01959 570 882

Get in Touch

support@bikeparts.co.uk

Bikeparts HQ

Unit 13, Wireless Road, Biggin Hill, Kent, TN16 3BW