All this gives this wonderfully simple device that is to be mounted also easy to read and easy. We needed it for a child's bicycle. It was only one difficulty: the tire size was not saved. But there helps a simple measurement of the wheel circumference by Moving the wheel with a previously painted marker to a revolution. This value can then use.
An excellent device that proves once again that less useless stuff creates real value, because if everything is there, what you need, and assembly and handling are easy, then saves to his nerves and saves time for the essentials.
