SKU: 41197442628

BB30 Outboard AC BB for 24mm Cranks (Shimano) - Black

Sale price$104.62 Regular price$116.24
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

BB30 Outboard AC BB for 24mm Cranks (Shimano) - BlackTwo machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement. Specifically designed for installing 24. 00mm spindle diameter cranks (Shimano, Etc.) in BB30 (42mm ID BB shell) frames without the need for any adapters. Compatible with the following Bottom Bracket

Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement.

Specifically designed for installing 24.00mm spindle diameter cranks (Shimano, Etc.) in BB30 (42mm ID BB shell) frames without the need for any adapters.

Compatible with the following Bottom Bracket Standards (42mm BB shell inner diameter):

  • BB30
  • Specialized Alloy OSBB.

Compatible with 24.00mm spindle diameter cranksets.*

*Note: FSA MegaExo spindles can be between 24.00mm and 24.07mm in diameter. If your FSA spindle is 24.07mm, this BB will not work! 

Specifications:

  • Bearings: Enduro Angular Contact
  • Color: Black
  • Bottom Bracket/Frame Interface: BB30, Specialized Alloy OSBB
  • Bottom Bracket Shell Width: 68mm - 73mm
  • Bottom Bracket Shell I.D.: 42mm
  • Over Bearing Width: 90.5mm in 68mm wide shell*
  • Crank Spindle Diameter: 24.00mm
  • Tool Pattern: 44mm, 16-notch
  • Weight: 127g
  • Packaged for retail display

* Over Bearing Width Dimensions include supplied silicone dust shields.

Installation Instructions:

https://wheelsmfg.com/tech/PDF/BB30-OUT-SHIMANO-INSTRUCTIONS-WEB.pdf 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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
SKU: 41197442628

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4.2 ★★★★★
Based on 25 reviews
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Rebecca
Cuba, US
★★★★★ 5
Great! Worth the money
Size: 4.5", Style: Open
These things are amazing!!!! So strong you can hang a 20ft ladder and they don’t budge at all. Soooo easy to use especially in a metal building/shed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
G
Verified Purchase
Guitar
Cuba, US
★★★★★ 4
Good product. Know the limits.
Size: 6 Inch, Style: Open
These are very nice. Sure beats drilling holes in your steel. However, 45lb is a stretch. Will easily hold 25lbs. However 35+ is a stretch, especially if your walls shift a little due to be close to a door. Will definitely order more, just important to understand the limits. Thanks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
V
Verified Purchase
Valhalla Ranch
Pawtucket, US
★★★★★ 5
Finally, a product that meets all of its advertised claims!
It seems to me like this product is always out of stock. Of the ones I have received and been able to use. They work as advertised and hold an incredible amount of weight. It is very easy to put them on and off, but once they are latched down, you could not remove them by hand without bending the hooks I would like to have a few more boxes to use in my steel building.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026
A
Verified Purchase
Ashley
Belleville, US
★★★★★ 5
Magnet hooks you need!
Size: 4.5", Style: Open
I have been using these all over our shop and helps keep chords, tools and other items off the floor and more organized. I like the ease of the magnet, and it looks like. Built to last. I wish they were not so expensive.
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Reviewed in the United States on April 9, 2026
H
Verified Purchase
HD Rider
Lowell, US
★★★★★ 5
Great product
Size: 4.5", Style: Open
Strong grip
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026

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