Speedometer Error

It has been routinely noticed that the stock speedometer is not precise. The error can be up to 10%, which can be tested by any speed measuring device put by police on the roads for your convenience or a modern GPS.

There are several ways to remedy the situation:

• Do the math in your head. If the speedometer shows 60mph, subtract 6 to get 54mph actual speed. It's pretty damn easy.
• Change your front tire to a bigger one. Play with the speed calculator to see the difference.
• Install a bicycle computer and calibrate it properly.