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- USA
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Shimano BB-UN300-K Bottom Bracket - English, 68 x 127.5mm Spindle, Square Taper JIS, For Chain CaseShimano BB UN300 Square Spindle Bottom Brackets Fits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle Product Specifics Defined Color: Black Bottom Bracket Shell I. D.: 1. 37 Spindle Length: 127. 5 Spindle Interface Type: Square Taper JIS BB Shell Width (mm): 68 BB Frame Interface: English Today's Stock Status Currently not available UPC: 192790619170 EAN: Not available Manufacturer Part Number: EBBUN300KB27X CR3496
Shimano BB-UN300 Square Spindle Bottom Brackets- Fits JIS square-taper cranksets
- Crankarm fixing bolts sold separately
- Hollow spindle
Product Specifics
- Defined Color: Black
- Bottom Bracket Shell I.D.: 1.37
- Spindle Length: 127.5
- Spindle Interface Type: Square Taper JIS
- BB Shell Width (mm): 68
- BB/Frame Interface: English
Today's Stock Status
Currently not available
UPC: 192790619170
EAN: Not available
Manufacturer Part Number: EBBUN300KB27X
CR3496
154807-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1413 reviews
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Product Reviews
★★★★★ 5
Got full credit back. Great service
Sent us Amazon credit for the full amount after our lounge chairs fell apart in less than a year. Great service!
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Reviewed in the United States on November 19, 2025
★★★★★ 5
100% recommended
They are very responsive and a super easy process. I have protected most of my purchases with them!!!!
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Reviewed in the United States on February 14, 2026
★★★★★ 1
Don't waste your time. They'll just deny claim
Not a very reliable form of insurance. I had to file a claim on a 2 month old bedframe and they gave me the run around until I contacted Amazon.
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Reviewed in the United States on January 8, 2025
★★★★★ 5
No hassle to file and get a claim resolved.
I have to say, I expected a lot of hoops to jump through. Companies are all very eager to take your money, but when it comes time to pay out, in this case (Product Insurance) quite often it is a different story. But to my surprise that is not the case with Asurion. I submited my claim, and a few days latter I received my check. At 77 and retired from the computer field i have seen alot of things with companies that do not care about customer service and satisfaction. But when you make a purchase from Amazon with their 30 day return policy and Asurion insurance. You can't beat it.
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Reviewed in the United States on November 20, 2025
★★★★★ 4
Response was swift.
A+ service! Very quick to respond! I would like to see that customers are given a choice on how to receive the reimbursement!
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Reviewed in the United States on November 29, 2025