Had this for a week and ridden less than 10 miles. Decided that I will stick with my un-motorized bike as this one does all the work and I need room in my garage. The hub max wattage is 1000 Watt but consistent at 750 Watt which really pulls it along and climbs hills easily. I believe that you can "unlock" this bike for greater speed but that is outside my skill set. This is a class 1 electric and can be ridden on any trail that bicycles are allowed. Standard 26" moutain bike tires. Folds to fit into a car trunk. Great deal at $475.