Its leading speed is fairly good as well as motor power does not degrade above time. It’s fairly easy to assemble and very comfortable to fold and carry. It’s braking method did degrade about time even though although not a huge deal for the overall quality from the ebike. https://www.electricscooter.ltd/big-e-scooter-off-road-electric-scooter-double-motors-double-lights-20000w/