Really fun, lightweight, high power bike with disk breaks. Due to the higher speed and power output this is not street legal or classified as an electric bike. But for those of you who are looking for a thrill this could be the bike for you! The battery box looks like it might need to be refined a bit and maybe it will be in the future. Bike has a 1,000 watt Mac motor and 52 volt Lithium Polymer battery. Overall I like it nice and simple and I love yellow!