EVO Fire Ridge E -Bike with a 350 watt Promovec hub motor, 27.5 inch wheels,ShimanoM 315 hydraulic brakes. SR suntour 27.5 inch suspension fork with a 18 speed Shimano Acera Derailer. Battery is a 7.8 ah downtube. This is a nice adult sized bike at less than half the price of new.