Smart Bike D2 light smart bike high speed smart bike foldable smart bike smart bike factory smart bike manufacturer F wheel DYU Smart Folding Electric Bike launches its second generation! Featured with manual power, electric power and electric moped power mode, this electric bicycle can meet your different riding needs. Features: Aircraft-grade aluminum alloy frame, lightweight body and folding design; Three riding modes: manual power, electric power and electric moped power, meeting your different needs; Smart App password locking ( scanning the QR code in user manual ), anti-theft protection; Bright induction front light ( App switch auto / manual mode ) and back braking light, increasing cycling safety in night; Double disc brakes in front and rear wheels, cruise control, convenient riding; Powerful 250W motor and 5.2Ah large battery capacity.