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SHIMANO Bottom Bracket BB-UN300 Square Spindle 68 x 122.5mm

bicyclepartswholesale
(229)
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US $19.99
ApproximatelyC $27.46
Condition:
New
2 available3 sold
Popular item. 3 have already sold.
Shipping:
Free USPS First Class®.
Located in: San Diego, California, United States
Delivery:
Estimated between Wed, Jul 30 and Sat, Aug 2 to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
No returns accepted.
Payments:
     Diners Club

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eBay item number:133923552899
Last updated on Jan 21, 2025 20:16:49 ESTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Brand
SHIMANO
UPC
192790619255
MPN
EBBUN300B23X
Part Type
Bottom Bracket

Item description from the seller

About this seller

bicyclepartswholesale

100% positive feedback•745 items sold

Joined Dec 2018
Seller's other itemsContact

Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
4.8
Communication
5.0

Seller feedback (216)

All ratings
Positive
Neutral
Negative
  • n***o (1957)- Feedback left by buyer.
    Past month
    Verified purchase
    Awesome bottom bracket! Worked great in my trail hybrid. Received fast and in good condition.
  • p***p (638)- Feedback left by buyer.
    Past month
    Verified purchase
    Great seller! A++++
See all feedback

Product ratings and reviews

Learn more
4.2
4 product ratings
  • 3 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 1 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 3 reviews
  • by pseudocoo
    Sep 16, 2022

    OK on a budget, but higher quality BB's are available. "You get what you pay for"!

    Pros - Priced right. Turns smoothly. Cons - Bearings are smaller than other BB's. Aluminum caps are soft and easily dinged. Chinese knock-off tool does not fully engage the 20 notches in the caps - Park tool works OK. The "K" version comes with a spacer on the drive side that needs to be removed for normal use. Shell cavity must be free of any protrusions such as screw tips from cable guides, or tube ends that protrude into the shell cavity. Axle is solid (heavy). This is not typical of Shimano quality! If you are replacing a sealed bearing BB, installation should be straight forward. Recommend a higher quality unit unless there are budget constraints.

    Verified purchase: YesCondition: NewSold by: wheelandsprocket

  • by apostle707
    Jun 25, 2025

    Good bottom bracket at a good price !

    Great quality bearings and overall light weight product used but like new

    Verified purchase: YesCondition: Pre-OwnedSold by: 2mnykllctbles

  • by bren_2907
    Feb 16, 2021

    Shimano BB

    Upgraded my 1991 Trek 720. BB is exact fit. Good product.

    Verified purchase: YesCondition: NewSold by: usn.inc

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