Bottom Brackets


All BB’s are made by Wheels Manufacturing and Made in USA. Bearings are Angular Contact unless otherwise noted as they’re the best blend of durability and cost.

All BB’s use a 30mm diameter bearing so it’ll work the the 2XR Crankset

What type do you have on your bike? This information is often on frame graphics or printed on the bottom bracket itself.

BSA (English): The classic! For 68/73/83/100mm threaded BSA (English threaded) bottom bracket shells. Angular Contact bearings for increased durability.

T47 Outboard: For 68/73/83/100mm width T47 threaded bottom bracket shells. Bearings sit outside of the shell.

T47 Inboard: For 86/92/107/121mm width T47 threaded bottom bracket shells. Bearings sit inside the shell.

PF30: For 68/73/83mm width PF30 bottom bracket shells. This is a thread-together design.

386 EVO: For 86/92mm width 386EVO bottom bracket shells. Sometimes this is also called internal PF30.

BB86/BB92: For 86/92mm wide bottom bracket shells that have a BB86 style shell. These are ABEC-3, dual-row bearings (that’s 2 bearings per side!) for added durability.

BBRight: A funny little asymmetrical pressfit standard commonly used by Cervelo.

Weight .3 lbs
BB Type

BSA (English), 386 EVO, T47 Outboard, T47 Inboard, PF30, BB86/BB92, BBRight