E Titan is a modified 9 Speed Titan- It uses an integrated system by a Japanese company called Dapu. It features a 350W Geared Hub Motor, a special Cranket with sensors, a 36V 13 AH Rack Mounted Battery with built in light, and a Digital Display. With this system you can choose between throttle only or 6 different levels of pedal assist.The 36v 13AH battery is much larger than other manufacturers use and will give you a much longer range- about 30 miles electric only and up to 75 miles using pedal assist.