Diesel Engine powered Royal Enfield motorcycles really like motorcycle touring and figured that economy wise my current mount SR500 had to me a short range. I like old bikes then I found out about Indian Enfields. They have all I’m after: 350 or 500 single right side shift 4spd and ok mileage. After more surfing the net I discovered people had been fitting Diesel engines into’em and getting extremely good mileage.they are a very nice looking and sounding bike.