Why not measure it?
I assume this is a square taper with BSA threading. If that is correct all you need to know is the shell width (easily measurable) and spindle length (either take cranks off completely or remove the crank bolts and measure from the outside of the crankset, then subtract the distance by which the spindle ends are recessed).
You could also check the crank model number and look up the recommended BB width.
1 Comment
Why not measure it?
I assume this is a square taper with BSA threading. If that is correct all you need to know is the shell width (easily measurable) and spindle length (either take cranks off completely or remove the crank bolts and measure from the outside of the crankset, then subtract the distance by which the spindle ends are recessed).
You could also check the crank model number and look up the recommended BB width.