Hello, I am not sure if it is the right place to ask but if I want to make a diy/cheap version of mini velo. Is it possible to take a small bike frame and put 20 inch wheels on it to make it into a mini velo? There are several 20 inch hybrid frames, 16 inch mountain bike frames. I was wondering how can I know if 20 inch wheels (406mm to 451mm) can fit? or am I going the wrong way? I know I will have to extend the headset by having spacers or a handlebar Rise and have a longer bike post. All three bikes that I eyed on have cantilever brakes if that helps my case.