Usually get about 15-16 mpg since I bought it at the end of May '06 - but that's with A/C and each tank has had some moderate offroad activity - so not sure what it will be when strictly on the road. Just can't seem to stay on pavement! And to think I bought this after getting insane mileage on my mountain bike 3.5 miles each way to work! Just couldn't take the heat of Phoenix any more - plus being able to offroad it is a serious bonus...