Today I was riding behind a car which had its speedometer in the middle. His speedo was showing 55 km/h while mine was at 59 km/h. Considering that his speedo also shows a higher speed, my inaccuracy must be at least 5 km/h. I was wondering if there's something wrong with my speedo :shifty . Is anyone experiencing the same problem here? Could sb perhaps tell me his speed at a certain RPM in a certain gear (GSX-R 600 K8 only)? It would annoy me if I've been riding too slowly all this time due to a defective speedo. Thank you all for your time!!