Thanks! Frame his mild steel like your Schwinn cruiser. Head tube insert is 4130. Grips are old school from the 1970'sThat thing is awesome! I gotta get used to the square headtube. I hope you win fair and square
What kind of steel is this? (sorry I did not read the whole story of the build)
"Edit:" I love the square handlebars with its socks.... eh grips! Again: cool bike to look at!