Originally Posted by
FiftySix
Center axis of crank to center axis of pedal.
My Schwinns with one piece cranks were/are approximately 180mm* if I recall correctly. My other two bikes with 3 piece cranks are 170mm.
Edit: *7 inches or 177.5mm per specs found on the net.
Yeah, all of my bikes look like they are 6.6", which I think translaes to 170mm. I guess maybe that's pretty standard since they had it loaded into the calculator already.