Has anybody ever tried Mario Moto overdrive kit -
http://www.mariomoto.it/od.htmHere is what they are saying you get.
45 mph rpm__1700 in 4th gear rpm_1200 in 5th gear
50 mph rpm__2000 in 4th gear rpm_1300 in 5th gear
55 mph rpm__2100 in 4th gear rpm_1500 in 5th gear
60 mph rpm__2400 in 4th gear rpm_1800 in 5th gear
65 mph rpm__2600 in 4th gear rpm_2000 in 5th gear
70 mph rpm__2900 in 4th gear rpm_2100 in 5th gear
75 mph rpm__3100 in 4th gear rpm_2300 in 5th gear
80 mph rpm__3400 in 4th gear rpm_2500 in 5th gear
85 mph rpm__3500 in 4th gear rpm_2600 in 5th gear
90 mph rpm__3700 in 4th gear rpm_2800 in 5th gear
Don't know if you can still get the kit, but if these number are true, it might be worth it.