i think generally the newer japanese 4 stroke motors are quite reliable. it's usually the competition variants that require more maintenance. with that said i ended up buying a ktm racing supermoto that was converted to street trim - and thus not very reliable. i'll most likely have to rebuild the motor once a season or two (i already feel the valves going but that's an easy fix) but the fun factor on this thing blows my BMW HP4 out of the water. it's hands down the most fun ive ever had on a motorcycle and i don't plan on ever getting rid of this thing
