The title says it all. I'm looking at mounting a 4-stroke with a centrifugal clutch in the frame. I assume the wide pedal cranks are provided to ensure the crankarms miss the sides of the engine. Anyway, has anybody actually measured the Q-factor of these cranks? I'm looking to motorize a ten year old GT with a standard UN-72 square taper bottom bracket. It's a triple crank that would be converted to a single ring in the front. I already have a much wider bottom bracket that I could use to put the crank arms out another half inch or more but I need to know how wide is wide enough.