3rd Gear
Join Date: Oct 2006
Location: Evansville, Indiana
Posts: 815
I kept forgetting, but remembered to check it out tonight.
GPS verified - The speedo is slow at exactly 10% ratio through the entire speedometer. I made sure to keep the speedo dead on at each line. Why any other KLR would differ from this is unknown. Different tires should not affect this ratio much at all because they are all similar enough, even the knobbies. Changing a sprocket would affect RPM, but not the speedo. Changing the front rim size would probably be the only possible factor. Even so it would continue to be a ratio and not just 3 or 5mph off through the entire speedo.
Bike = GPS = 10% Difference
20 = 18 = 2
30 = 27 = 3
40 = 36 = 4
50 = 45 = 5
60 = 54 = 6
70 = 63 = 7
80 = 72 = 8