The integrated control device for driving the control cable of the derailleur and the brake cable of a bicycle is provided. The motor-driven compressor includes a drive circuit. An elbow shaped primary dish support, including a generally cylindrical upright leg connected to a generally horizontal leg, is provided. The system further includes a controller that monitors the stochastic behavior of the ionization signal and adjusts the ignition timing of the engine to operate the engine with an actual knock intensity that is below a knock borderline limit that defines a desired knock intensity. If the validation of the engine and the two motors fails, additional equations can be used utilizing additional inputs, including the vehicle speed as measured at the vehicle wheels. The first test circuit is adapted to provide information corresponding to the driver tristate leakage current of the first pad.