"The gas ring is the best product on the market in terms of quality. The workmanship is unrivalled and its reliability unbroken. I have driven a total of 785,000 kilometres so far without any technical problems. Yes, it's 785,000 kilometres and 19.625 circumnavigations of the earth."
This is just one of the many enthusiastic testimonials from Darios users. No wonder, after all, Kempf is committed to the highest quality and offers its customers a 30-year guarantee on all driving aids.
KEMPF was founded in 1955 by Hans Kempf, who was disabled after suffering from polio. As a keen mechanic, he invented the throttle ring so that he could drive with both hands on the steering wheel. By the end of his life in 2002, he had converted over 100,000 vehicles.
The hand throttle system developed by Kempf is the only one available on the market that adapts to the speed of the vehicle: At slow speeds, acceleration is smooth, progressive and economical; at high speeds, acceleration is dynamic to ensure safe driving and fast overtaking manoeuvres are precise and easy. All the usual functions of the steering wheel, such as adjustability, airbag and horn, are retained. The pedals also remain functional - Darios can be switched off using a switch so that other drivers can operate the vehicle in the usual way.