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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
Shimano BB-UN300 Bottom Bracket - English, 68 x 122.5mm Spindle, Square Taper JIS, 50mm ChainlineShimano 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: 122. 5 Spindle Interface Type: Square Taper JIS BB Shell Width (mm): 68 BB Frame Interface: English Today's Stock Status 10+ Available to ship in 2 4 Business Days UPC: 192790619255 EAN: Not available Manufacturer Part Number:
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: 122.5
- Spindle Interface Type: Square Taper JIS
- BB Shell Width (mm): 68
- BB/Frame Interface: English
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 192790619255
EAN: Not available
Manufacturer Part Number: EBBUN300B23X
CR3489
154800-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
4.1 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 1
Comfy shorts with plenty of leg room.
Size: 46, Color: 01khaki
These shorts run huge, in the legs. Nice material, well made, waist was the right size, but too much in the legs.
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Reviewed in the United States on June 19, 2025
★★★★★ 5
Great watch. Would buy again if I live that long.
Color: Tan
Excellent product. Simple, reliable, accurate and easy to read day or night. Don't think about it too much. Just pull the trigger.
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Reviewed in the United States on December 27, 2025
★★★★★ 5
If only it had Indiglo....
Color: Black
Terrific watch. The leather band is very comfortable right out of the box. The bezel is crisp with very little slip. The markings are very good in the dark, but I still wish for Indiglo.
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Reviewed in the United States on July 24, 2025
★★★★★ 5
Christmas gift for hubby
Color: Blue/Blue/Stainless Steel
Bought for my husband.
He absolutely loves it.
Only issue, No direction on how everything works. But he did figure it out after a couple of days playing with it.
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Reviewed in the United States on January 13, 2024
★★★★★ 3
started fogging up inside after a couple of swimming sessions
Color: Black
Unfortunately, my watch started fogging up inside after just a couple of normal swimming sessions. I rinsed it with fresh water every time afterward and dried it with a towel, but later noticed moisture building up inside, and now I have to put it in rice to pull the condensation out.
On the other hand, it’s hard to find good-looking classic-style watches with tide information, so I might just keep it as an everyday accessory rather than a watch for swimming.
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Reviewed in the United States on May 19, 2026
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