PS- "Klunker" is a term often applied to a cruiser bike that has been modified for offroad use. This can involve removing parts (eg, fenders, chainguard, tank, kickstand) to shed weight, or adding parts to improve performance (eg, knobby tires, front brakes, multiple speeds, hand brake for the rear, 3 piece crank, stronger bars or stem, etc...).... Many bikes will incorporate both strategies, to varying degrees... The yellow Bultaco pictured above has "klunker" appeal b/c it would provide some killer-looking era-accurate cockpit components, had the bars, levers, and grips ever been co-opted for klunker duty...