DYU to Launch DYU FF500 Folding eBike with 500W Motor Following the release of DYU King750 electric bike, DYU is proud to announce the launch of another eBike model, DYU FF500, aka DYU Ostrich. DYU is a renowned for compact and folding eBikes that redefine urban mobility. Responding to the actual needs of riders, the upcoming DYU FF500 features the practical design, strong performance,...