DHZ140cc Sprocket setups?

[Craig93]

Hey guys just wondering what the best sprocket setup would be for my DHZ 140cc 2008 model? Its all stock except for the big bore pipe (although i have a inner rotor kit on the way). I ride mainly trails and stuff. But will start making some little tracks soon.
What do you guys find works best for those engines?
Thanks

 

[DvDRip]

I ride trails and run 16/37, I think it's perfect like that cuz it lengthens the gears and makes 1st useable so you can get up steep hills easier.
If you ride trails the IRK is a really bad idea, you'll lose all your torque