White Industries external BSA style bottom brackets are made in their Petaluma, California shop with U.S. sourced 6061-T6 aluminum and feature Enduro stainless steel bearings. Offered with three different bearing sizes to help you fit your favorite crank to your favorite bike.
BSA bottom bracket shells and cups are referred to as "British" or "English" style and is the most common type of system found on modern bicycles. The "external" designation refers to the fact that the bearings will sit outboard of your frame's bottom bracket shell as opposed to being tucked inside the shell as you would find on some styles of BSA bottom brackets.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Bottom Bracket STD: English (BSA)
Frame Interface: BSA/English Threaded
30mm Spindle - Black
Weight: 83 grams
Bottom Bracket Type: BB30
Mfg PartNum: BBE30BSABK
29mm Sram Dub Spindle - Black
Weight: 90 grams
Bottom Bracket Type: DUB (29mm)
Mfg PartNum: BBE29BSABK
24mm Shimano Spindle - Black
Weight: 84 grams
Bottom Bracket Type: Shimano (24mm)
Mfg PartNum: BBE24BSABK