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Shimano BB-UN300 Bottom Bracket - English, 68 x 113mm Spindle, Square Taper JIS

US $16.24
ApproximatelyC $22.51
Condition:
New
More than 10 available344 sold
People want this. 138 people are watching this.
This one's trending. 344 have already sold.
Shipping:
Free Standard Shipping.
Located in: Grand Rapids, Michigan, United States
Delivery:
Estimated between Wed, Apr 30 and Mon, May 5 to 43230
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:
30 days return. Seller pays for return shipping.
Payments:
     Diners Club

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eBay item number:114675463412
Last updated on Apr 26, 2025 14:13:30 EDTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
UPC
192790619323
Manufacturer Part Number
EBBUN300B13X
MPN
EBBUN300B13X
Manufacturer
Shimano
Brand
Shimano
Model
EBBUN300B13X
Package Height
1.91
Part Type
Bottom Brackets
Color
Black
Package Length
5.63
Package Width
2.03
Package Weight
0.65

Item description from the seller

About this seller

Gap30 Cycles

99.1% positive feedback237K items sold

Joined Nov 2013
ALL RIDERS. NO ATTITUDE. Gap30 Cycles is your source for quality cycling parts and accessories at great prices. 100% Customer Satisfaction Guaranteed.

Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
4.9
Communication
4.8

Seller feedback (74,262)

All ratings
Positive
Neutral
Negative
  • i***w (174)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Arrived in perfect shape. Will install on my Cannondale T700 when frame touch up is completed. Thanks!
  • t***p (457)- Feedback left by buyer.
    Past year
    Verified purchase
    Getting hard to find square taper bottom brackets of good quality these days. My bike is 12 years old and has 3x8 gearing. I am stocking up on replacement parts. 26 inch 3x8 stuff is vanishing.
  • y***b (47)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Received brand new part in perfect condition, very pleased with seller
See all feedback

Product ratings and reviews

4.9
9 product ratings
  • 8 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 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

  • Easy Installation

    I bought this product after changing from a double crank set to a triple crank set. My original was 124mm and this Shimano was 113.5. I worked out great in helping to align my chain rings with my rear 8 speed cassette.. I should point out that, when installed in my 68mm frame, the left crank was slightly farther away than the right chain ring side from the frame. This worked out well for me because it helped to align my chain rings with the 8 speed cassette better. There were no problems with installation, it went into the frame smoothly. Much easier to install than the cup and cone bottom bracket I had before. As I look at the picture, it shows some kind of black washer on one side. I don't remember that on the one I received, and I wonder if that may be the reason one crank is ...

    Verified purchase: YesCondition: NewSold by: gap30cycles

  • The UN-300 is the best budget-friendly square taper bottom bracket available. If cost is an issue and weight isn't, this is a great choice.

    The UN-300 is the best budget-friendly square taper bottom bracket available. If cost is an issue and weight isn't, this is a great choice.

    Verified purchase: YesCondition: NewSold by: cyclesport_usa

  • very good but could be better

    The thin left side cup is made of soft aluminum, splines of which deform to some extent while cup tightened to the proper torque. Otherwise well made and finished product.

    Verified purchase: YesCondition: NewSold by: pitcrewcycles

  • Good quality!

    This part was good quality and arrived quickly.

    Verified purchase: YesCondition: NewSold by: wheelandsprocket

  • easy process

    worked for me

    Verified purchase: YesCondition: NewSold by: renewtechtraders