I have been getting around 40 mpg in the city (I ride mine to work about 4 miles each way) and the few trips I was able to take into the mountains around Boise was getting around 50 mpg. The only problem I have with that is that the tank is so small - smaller than the one on the C50. Seems like they should have used the fuel tank for fuel instead of hiding a tiny tank under the seat and using the real tank for looks and hiding the electronic components!