Kumram: A custom Heritage Softail Classic from Bangkok

The Heritage Softail Classic is the kind of bike most non-riders think of when they hear ‘Harley’—oodles of chrome, saddlebags, riveted leather and massive fenders. At over 700 pounds wet, it’s designed for long distance touring—and it isn’t the sort of machine you expect to find in a teeming metropolis in tropical Southeast Asia. So when Bangkok native Tuey Chuenprapar got the keys to a 2008 Heritage, it wasn’t exactly love at first sight. “I used to think it was a very ‘old’ looking bike,” he says. “Bangkok is among the world's worst for traffic congestion—and compared to most motorcycles,...