In nearly 20 years of bikes, this is my first 4130 Schwinn. '73 Super Sport, LBS find. Going to flip it as it's too small for me (and I'd build a Sports Tourer first before I'd bother with an Ashtabula crank), but couldn't resist the opportunity. Virtually fell into my lap.

Front tire is the original



As found. Believe it or not, the only thing between these pics is the removal of the bottle cage, the bar position, and a pair of tires filled up so they don't look flat




-Kurt