I have Shinko on my DR650, works decently for the street. For the dirt, well, okay for a smooth fire road, but that's as technical a situation as I want to push an overweight, undersuspended pig like a DR650 anyway. As an aging serious trail rider who gave it up a few years back, here's my rant (again?): Any tire that works well in the dirt will get burned up in a thousand miles or less of street riding and then be worthless in the dirt. Any tire that can last a few thousand miles on the street is about worthless in the dirt from the gitgo. Of course, I'm talking serious dirt riding here, not an occasional gravel road, so this contention has somewhat limited application to the big brontosaurs even heavier than my DR and so even less appropriate for real dirt. I think Shinko is likely the best current trade off between price, dirt traction and lifespan. JMHO.