- BB-frame interface: English/BSA 100mm; English/BSA 68/73mm; English/BSA 83mm; Italian (70mm)
- Crank-BB interface: GXP
- Bearing type: Standard
- Spindle length: n/a
- Chainline 51.0mm, n/a
SRAM part reference
BBAS4500 = 00.6415.045.000 (English/BSA 68/73mm)
BBAS4501 = 00.6415.001.000 (Italian 70mm)
BBAS4506 = 00.6415.045.060 (English/BSA 83mm)
BBAS4507 = 00.6415.045.070 (English/BSA 100mm)