https://notre-siecle.com/26-21-speed-48v-240w-12ah-lithium-battery-mountain-bike-folding-electric-bicycle-electric-bike-mtb-e-bike-with-magnetic-ring-power-sensor-black/
26" 21 Speed, 48V 240W 12AH Lithium Battery Mountain Bike, Folding Electric Bicycle, Electric Bike, MTB E Bike With Magnetic Ring Power Sensor (BLACK)