Wheels Manufacturing  BSA Outboard Threaded Bottom Bracket with Angular Contact Bearings for 22/24 mm Road Crank Spindles

Color: Black
Size: One Size
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With angular contact bearings on the drive side and radial on the other, this Wheels Manufacturing BSA Outboard Threaded bottom bracket for 22/24 mm road spindles provides smooth power application.


  • Compatible with ISO/English or BSA Threaded (1.37 in. x 24 tpi) bottom bracket/frame interfaces
  • Compatible with SRAM/Truvativ GXP road cranksets with a 22/24 mm spindle diameter
  • Fits frames with a 68 mm shell width; 33.6 to 33.9 mm shell internal diameter
  • Machined aluminum cups with replaceable bearings offer increased durability and longer bearing life
  • Chromium-steel ball bearings provide smooth, long-lasting operation; Enduro Angular Contact sealed grade 5 on the drive side and ABEC-3 sealed grade 10 on the non-drive side
  • 52100 high-carbon chromium alloy races are extremely tough and durable for a long life
  • Includes one 2.5 mm aluminum bottom bracket cup spacer, two 0.5 mm and 1 mm crank spindle spacers, 1 wave washer, and 2 Enduro silicone dust seals

Made in USA.

View all Wheels Manufacturing Bike Bottom Brackets

Technical Specs

Item #221233
Best Use

Road Cycling

Bottom Bracket Installation

Threads into Frame

Bottom Bracket Standard


Spindle Interface

No Spindle

Fits Shell Width

68 millimeters

Spindle Diameter

22/24 millimeters


111 grams

Bearing Material

Stainless Steel


Aluminum cups; drive side: Enduro Angular Contact bearings; non-drive side: Enduro ABEC-3 bearings

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