I need to replace my chain and sprockets. I purchased the bike with -1/+3 sprockets. I love the low end power right now but I really don't love the 25mpg I'm getting nor the 7k I'm at in 6th gear at 80mph. Has anyone out there gone from a -1/+3 setup back to stock? Maybe a better option for me would be to get a -1 front and stock rear? How much of a difference would the gearing swap make in MPG's? I ride it a lot and a significant MPG increase would trump some loss of performance. Trading it in for a scooter that gets 80mpg is not an option :headshake but I'd like to have the best of both worlds if possible.