Pedaling on a FoldX bike

[wings02]

For those of you that have a FoldX model, do you find that the hinge bracket interferes with your leg/knee when pedaling. I have a friend that has one and he loves it. The thing is with him is that I think he “rides” the bike more as a scooter, not pedaling too much. I want to get one for some exercise so I would be pedaling more. I know they make pedal extenders. Maybe that would solve this problem if indeed it it does exist.