@Real1 , please enlighten us.
If we are doing model Comparisions, let's make the Comparisions on like price point bikes and during the same production eras. A lot changed in the bicycle industry between 1974 and 1980. A Schwinn Le Tour was never designed to be much more than a lighter weight Varsity/Continental, it was a "all steel, $139.95 bike". The Le Tour model was sourced from several different factories over it's long production run. It started out life in Chicago being built by UAW workers, and finished it's production life after a ten year run at Schwinn's Greenville, MS. factory. It was also sourced from Panasonic/Japan and Giant/Tiawan.
John