Odometer correction factor

[toller]

Though my speedo on my ninja 650 is WAY optimistic about my speed, the odometer is pretty close to dead on. The percent error of the speedometer is much larger than the percent error on any bike's odometer. If you really want to be accurate, add a bicycle speedometer/ odometer. Since you enter in the exact measured circumference of the tire, they are extremely accurate. You can buy correction devices for many motorcycle electronic speedometers, but way to expensive for me to care.