Hyper Bicycles Ultra 40 20" 36V Electric Bike for Adults, 250W E-Bike Motor, Matte Black

36V / 250W Rear-Hub Motor 10.4Ah Integrated Flush-Mount Battery with Lock Pedal Assist with 3 Power Modes 6km/h Assisted Walking Mode 20in x 4in Knobby Fat Tires Front and Rear Disc Brakes Shimano 7-Speed Twist Shifter Shimano Rear Derailleur Under Seat Storage Compartment Oversized Plush Seat UL 2849 Certification Rider max weight: 200 lbs