Wheels MFG Threaded BB30A Outboard Bottom Bracket for SRAM GXP AI X-Range gearing technology gives you

X-Range gearing technology gives you more range and a smoother gear progression

Note: Assembly compounds hold by using grip aided by small bits of hard silica

with just enough room left over for a spare road tube and tyre levers

This casing can also be used with an inner tube

Fast-rolling alternating center ridge provides forward traction

Wheels MFG Threaded BB30A Outboard Bottom Bracket for SRAM GXP AI X-Range gearing technology gives youThe two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement. Specifically designed for installing 22mm 24mm spindle diameter cranks (SRAM Truvativ GXP) in BB30A (42mm ID, 73mm wide asymmetrical BB shell) frames without the need for any adapters.