Its leading speed is pretty good and also the motor power does not degrade over time. It’s quite easy to assemble and very comfortable to fold and carry. It’s braking system did degrade over time though although not a major deal for the general quality of your ebike. A https://www.electricscooter.ltd/120mph-20000w-motor-power-electric-scooters-with-seat-best-14-inch-tire/