


KCNC BB30 to Shimano Adapter
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
KCNC BB30 to Shimano AdapterBB30 Coverter Cups and Bearings Adapter cups and bearings for the BB30 bottom bracket shell to allow the use of standard non BB30 cranks. To fit road frames width 68mm shells, or MTB frames with 68 73mm shells. Compatible with Shimano 24mm cranks and KCNC K type cranks (without insert). Full stainless steel bearings. BB shell insertion diameter: 42mm Road BB30 Adapter spec. 42mm x 68mm XC BB30 Adapter spec. 42mm x 68 or 73mmmm Bearing inner diameter
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Your KCNC BB30 to Shimano Adapter orders ship within 1-2 business days.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 1364 reviews
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Product Reviews
★★★★★ 5
Great product
Size: 4.5", Style: Open
Strong grip
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
★★★★★ 5
Work great
Item Package Quantity: 6, Color: Black
Relatively strong hooks. The metal I have them on is thin so the magnets arent as steady as I hoped but thats my fault not the hooks. Ample hook space and solidly built
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2024
★★★★★ 5
You need these!
Item Package Quantity: 4, Color: Black
These are not really “industrial strength” but they work great and are decent quality, especially for the price. I bought them to use on a sheet metal barn and they hold halters, rakes and other supplies with ease. Out of curiosity I did toss a dewalt drill in one and it held even though I ordered the medium size and the drill didn’t fit super well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 6, 2025
★★★★★ 5
Very useful tools or helmets hanger.
These are quite useful and hold anything that’s less than 10lb. I think it can hold heavier items but I think it’s best to keep it light and the magnet strong enough to make it very convenient to affix it to any metal cabinet or poles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 7, 2025
★★★★★ 1
Magnet strength is weak AF
Item Package Quantity: 30, Color: Black
Magnet strength is absolutely terrible! I was hoping that they would be strong against my shipping container as the product suggests, but I put a item on it that barely weighs 10 lb and it started sliding down the wall. The magnets are not strong at all!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
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