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

Color: Black
Size: One Size
Shipping restrictions apply.

Members get an estimated $12.25 (10%) back on this item as a part of your annual .

Members get an estimated $12.25 (10%) back on this item.
To buy,  sign in as an REI Co-op Member or join now.

Featuring angular contact bearings and silicone seals, this Wheels Manufacturing BSA Outboard Threaded bottom bracket for 22/24 mm MTB spindles is durable and 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 MTB cranksets with a 22/24 mm spindle diameter
  • Fits frames with 68 to 73 mm shell widths; 33.6 to 33.9 mm shell internal diameter
  • Machined aluminum cups with replaceable bearings offer increased durability and longer bearing life
  • Enduro Angular Contact sealed, grade 5 chromium-steel ball bearings provide smooth, long-lasting operation and are well-suited for carrying combined axial and radial loads
  • 52100 high-carbon chromium alloy races are extremely tough and durable for a long life
  • Includes one 2.5 mm, one 1.8 mm and one 0.7 mm aluminum bottom bracket cup spacers for use with 68 mm wide shells
  • Includes 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 #221234
Best Use

Mountain Biking

Bottom Bracket Installation

Threads into Frame

Bottom Bracket Standard


Spindle Interface

No Spindle

Fits Shell Width

68-73 millimeters

Spindle Diameter

22/24 millimeters


98 grams

Bearing Material

Stainless Steel


Aluminum cups; Enduro Angular Contact bearings

0 reviews

Loading Reviews...

Questions & Answers

Loading Questions...