Wheels Manufacturing BB30 Outboard Thread Together Bottom Bracket with Angular Contact Bearings for 24 mm Crank Spindles

Color: Black
Size: One Size
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Designed for use without needing an adapter, this Wheels Manufacturer BB30 Outboard Thread Together bottom bracket has angular ball bearings well-suited for carrying combined axial and radial loads.


  • Compatible with BB30 and Specialized Alloy OSBB bottom bracket/frame interfaces and 24 mm diameter crank spindles, such as those from Shimano
  • Fits frames with 68 and 73 mm shell widths; 42 mm shell internal diameter
  • Machined aluminum cups thread together for stability, increased bearing life and simpler installation/maintenance
  • Thread together design also prevents creaking
  • Enduro Angular Contact sealed, grade 5 chromium-steel ball bearings provide smooth, long-lasting operation
  • 52100 high-carbon chromium alloy races are extremely tough and durable for a long life
  • FSA MegaExo spindles can be between 24.00 and 24.07 mm in diameter; this bottom bracket is not compatible with 24.07 mm FSA MegaExo spindles

Made in USA.

View all Wheels Manufacturing Bike Bottom Brackets

Technical Specs

Best Use


Bottom Bracket Installation

Thread Together

Bottom Bracket Standard


Spindle Interface

No Spindle

Fits Shell Width

68 and 73 millimeters

Spindle Diameter

24 millimeters


127 grams

Bearing Material

Stainless Steel


Aluminum cups; Angular Contact bearings

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