1)frame:6061#Aluminum alloy 2)Motor: Brushless 36V/250W 3)Battery:36V10/Li-Polym Dear buys:This is our good selling product for the female,this kind of bicycle is fashion and brief,it is good at ride in the city,school,and community, it's best suitable for ride instead of walk and fitness,Hope you'll like it !Thank you for your support with my enthusiasm service leon zhang from jiabao vehicle Co. ...