After traveling some 2,000km and taking my 400X on my first road trip to Thailand, I’ve come to realise that the speedometer and odometer (or tripmeter) readings are waaaaaay off.
While I understand that most vehicle manufacturers build the speedometer to overestimate the actual speed, my Honda was actually UNDERESTIMATING instead! As I have my handlebar-mounted GPS turned on throughout the journey, I noticed that while the speedometer was reading approximately 100kmh, my (GPS) actual speed was 106kmh instead!
And to add to the problem, my odometer / tripmeter readings are way off too. While comparing notes with several fellow riders, the distance between 2 refuel stops should have been about 220km apart – my trip meter was reading 197km only. To confirm this irregular phenomenon, I took a mental note on the distance to the next destination on my GPS – approximately 135km. But when I arrived, my bike showed that I have traveled for only 120km!
This odometer / tripmeter under-reading is also causes fuel economy / mileage mis-calculations. Continue reading “CB400X Speedo and Odometer Inaccuracy”