my 2013 scab has stock tires and 3:31 gears, at 60 mph it's doing 1500 rpm, I'm averaging over 17 mpg around town, I had it out on the highway once when it was 1 week old and got 25mpg, I hauled my quad to work today and lost 1.5 mpg over 30 miles, I know it seems obvious but take out any extra weight you dont need, and beer doesn't count