Diesel power is a rarity in the motorcycle world. There have been only a couple of mass-market diesel motorcycles in history, and the chances of seeing a new diesel today are even lower as the world ...

While major motorcycle manufacturers produce a wide range of impressive mainstream bikes, the custom-built world of motorcycles is far stranger, with some examples that seem to break all the rules.

ACTION NEWS 8 REPORTER áPAUL DUDLEYáá HAS MORE NATS: ENGINE REV "IT SMELLS... IT SMELLS LIKE FRENCH FRY OIL." YOU'RE LOOKING AT A 1999 HARLEY DAVIDSON SOFTAIL... THAT RUNS ON USED VEGETABLE OIL. ALEX ...