How much money should I expect to pay if I want to set up a supermoto bike. How long do the bikes last when they are set up for the road riding? What bike would work the best? ( I was thinking of maybe a newer yz450 or KTM525). All I want is a cool looking sm bike to ride around on back roads. How many hours can I expect out of the motors and how fast will they go? Sorry a lot of questions I am really interested. Right now I ride a 2003 yz450 on the road, but its a 4 spd and wouldn't work well on the road.