Traveling by bike in South Africa

Several day tours on the bicycle, bicycle vacation, or even riding only from one city to another without a car is impossible in South Africa, because it's far too dangerous - these were the usual comments about my plans to travel with the E-Bike from Stellenbosch to Tanzania. "If you don't get attacked, you'll at least get a ruthless minibus driver to get you hospitalized." Nevertheless, I dared to do it and had only positive experiences.