Take an Additional 20% off during our End of Summer Sale

BUYBETTER
1 3

Shimano BB-UN300 Square Taper Bottom Bracket

geartrade  |  SKU: SYDNEY4631
$1035 55% Off

Original price

$2299

Shipping calculated at checkout.
Condition
Good  NEW
Never used. Shows no signs of wear. New items may have the original tags or come in their original packaging.

EXCELLENT
This gear should be like new with very minimal use and wear.

GOOD
This gear is still in good shape. There’s some wear and tear, but has plenty of life left in it. Signs of wear may include pilling, snags, lint, animal hair, dried dirt, and minor but noticeable staining, etc.

FAIR
This gear is still usable and is in OK shape, but shows noticeable signs of wear and tear. Fair condition products likely have cosmetic blemishes throughout such as pilling, lint, animal hair, and dried dirt. Physical damages such as holes, tears, loose stitching, and staining are often found on Fair items. Fair items are valued for function over form.

Free Shipping on Orders $100+*

Free Shipping on Orders $100+

  • Offer valid on products purchased from the sellers Geartrade or Backcountry
  • Not valid on orders shipped to Alaska and Hawaii
  • Not valid on products in the following categories: complete bikes, bike frames, bike wheels, travel cases, kayaks, inflatables, pontoons, SUP's, surfboards,wakeboards, crash pads, windsurf boards, cargo boxes, car racks, skis, snowboards, tents, backpacks and coolers

FAQ's

Are the product photos of the actual items?

  • Yes! Geartrade does not use stock photos on their used gear. What you see, is what you get.
  • Some items in new condition may have stock photos.

Why should I buy used gear?

  • Good gear is built to last, you can save a lot of money and it's great for the planet.

I want to sell gear - what do you accept?

What is your return policy?

  • We offer a generous no-questions-asked 14 day return policy. You have up to 14 days to return your gear after it has been delivered. The item needs to be in the same condition we sent it to you (keep those tags on). Our full return policy can be found here: Return Policy

How fast do you ship?

  • Most orders placed before 1pm MST are shipped out that day. We ship Monday-Friday.
Why Geartrade?
  • Items are Hand-inspected by Gear Experts
  • Steep Discounts on Premium Outdoor Brands
  • Over 3 million pounds of gear diverted from landfills since 1999

The Shimano BB-UN300 Square Taper Bottom Bracket is a testament to durability and efficiency, designed to keep your bike's crank assembly performing smoothly. Ideal for those who demand reliability and longevity from their components, this bottom bracket features a square taper interface that ensures a snug fit and efficient power transfer. The sealed cartridge design not only protects the internal bearings from dirt and debris but also minimizes maintenance, letting you focus more on your ride and less on upkeep. Whether upgrading or replacing, the BB-UN300 is a solid choice that promises consistent performance and quality.

PRODUCT CONDITION
 
This UnNew Shimano BB-UN300 Square Taper Bottom Bracket is in Good condition. 
 
Products in Good condition have been well loved, but still have life left in them. Signs of wear may include pilling, snags, lint, animal hair, dried dirt, minor but noticeable staining, and other cosmetic imperfections. Small tears or holes may be present, but will not affect the functionality of the item. 
 
With this item, the following damages were observed: 

- Age, used 

TECH SPECS

  • Brand: Shimano
  • Type: Square Taper Bottom Bracket
  • Shell Width Compatibility: 73mm and 123mm
  • Thread Type: BSA (English)
  • Spindle Interface Type: Square Taper JIS
  • Additional Features: Sealed cartridge bearings

Not everything needs to be new. Earth matters too.

Wear it Out ™

Your Security Matters

Payment Methods

  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Back to top