The Rbike R4 folding bike, developed for a young target group, is intended to help reduce the high traffic volume, especially in cities, and to promote ecofriendly means of transport. Its range is up to 50 km. Thanks to a dual sensor for speed and torque the engine adapts very well to the power output, making it easy to master diverse terrain. When it is folded, the stylish and comfortable Rbike R4 has a pack size of only 0.15 sqm and can therefore be easily transported.