Originally Posted by
stoobydale
Hey mate, did you ever get this sorted? I am in the same situation now, I have a BBright crankset that I removed from my Cervelo that i would now like to mount on a BSA frame. I do have a spare spider though as I previously had another Rotor chainset that I fitted a Power2Max meter on. As you mentioned the spiders are considerably different.
I am also in the same boat. Really infuriating because rotor literature states that all their cranksets are compatible with BSA frames, but there is 0 documentation on how to make that happen.