Hi John.
One of mine is a DB30.Except for the engine(which is now a 5.5hp clone),it's all factory specs.6" rims,145/70-6 tires,60T Sprocket(I think)
My Arctic Cat Prowler is currently all stock,but I now have a jackshaft kit and a 60T sprocket to put on so I can swap the engine out(going to try a 2.8hp 4 stroke).10"spoke rims,3.00-10 tires.