For about 4 years now I have had some one build 5 motorized bicycle's for me. Now I went and got my-self # 6 th this is a MTB with F&R disc brake's on it. The frame is made of steel and it's a 18 " frame. Planning on a 80cc motor and a jack shift to drive the peddle gear's. Bike has good 26" to 27" wide flat handle bar so there be some space to mount like a light on it. Ross I hopeful we get chat some time more !!!. .