![Image](https://cyclingiq.files.wordpress.com/2016/02/2016-giant-road-e-plus-1-large.jpg?w=1460)
"Yamaha provides the drive system which is said to produce 80Nm of torque, powered by a 500Wh or 400Wh (depending on model) lithium ion battery." More from Cycling IQ
It doesn't pass as an attractive road bike in my book. The fat down tubes work well optically on urban and commuter bikes though there is a limit when it comes to style.