Frank Berto, the "Guru of Gearing", wrote a number of articles for Bicycling magazine from the mid-1970s into the 80s. I ran across some archived scans of them on-line a while back but now I can't find them. Specifically, I'm looking for an article he wrote about gearing which included semi-log plots of resulting gear-inches from different shift patterns (e.g., half-step, cross-over, etc). Can anyone out there help? Thanks,
Steve Whitting
Prairieville, Louisiana USA
Website at http://ciocc-cat.angelfire.com/