When a bike will travel thousands of kilometers and the spokes on the wheels spabot, tighten them — not an easy task: rust and dirt do the job just unbearable. Offer a simple way to without any problems to adjust the tension of the spokes. This will require a transformer (250 watts, 220/12), the wire and carbon rod from the battery. Combining all the elements as shown in the diagram, the supplied carbon rod to the head of the spokes and, dropping on her “avtol”, freely turns the head in the right direction.