DaBlue1, thanks for the quick response to my question. Before I bought my bike, I read numerous road tests. They stated 60 mph = 7,500 rpm's. I was shocked that mine was 9,000 rpm's. Because it's linear (gearing, not exponential) that computes to 12,000 rpm's = 80 mph, and redline (13K rpms) = about 87 mph. I created a spreadsheet with all the math in it according to the owners manual, of rpms/primary gearing/gearbox gear ratio/final drive, tire circumference, etc and the only way I mathmatically get 60 mph = 9,000 rpms is with a 20 inch diameter rear tire (but it's really 23). I wonder if they changed some gearing and didn't update the owners manual? I'm going to do what you suggest and change to 15/43 gearing to hopefully get the best of both worlds (reduced rpm's and still have some power). Thanks also for the tip about the fuel gauge undertank wiring, I'll check that out.