Dynamo Axa-Basta HR-Traction Power Control Right Side Mounting Smooth and quiet dynamo. With coarse roller for optimal mileage. Double bearings made of sintered bronze and stainless steel. Smooth running. Replaceable rubber running ring. Long service life, smooth, low noise and non-slip. Made from ABS/PA materials. Impact and shock resistant. High efficiency. High light output even at low speeds. Built-in Z diode prevents overvoltages and guarantees a long life of the bulb in the headlight. 4 ports (2 x power / 2 x ground). Contacting via plastic plug. Quick and solid installation. Electrical design: 6 volts / 3 watts