Trail Riding My Rat Jalopy XL-70

This is a true "555" bike (less than $500, less than 500cc, older than 1975). Or at least, some of it is older than 1975. Built from several junkyard bikes. The frame is a 1974 Honda XL-70. Forks and swingarm are from a 1981(?) XR-100. Front wheel is from an early '70s XL-100, rear wheel from a '60s CT200 Trail 90. Tank, seat, triple tree and speedometer from a late '70s or early '80s XL-80. The engine is a 125cc Chinese pitbike engine. It will do 55 mph and gets around 100 mpg. If I ride slower it gets well over 100 mpg. I have managed to get 140 mpg at times. And yes, it is registered and street legal.