Hello to everyone.

i like the setup on the little folding bike , but i,m willing to bet your engine shakes side to side a lot . if you look at your first pic . there is a spot for a rack or brake callipers to mount to . without changing your setup you could add a support between that mount and the spot were the top bracket attaches to the motor . this would give you a little more triangulation , and stiffen up that setup a little bit . i have a little folding bike about half the size of yours that i was thinking of putting a little weed wacker motor on . cool little project . just needs a wire basket on front and its off to the market . is there a way to disengage your engine from the wheel should the motor run out of gas ?

well your english is a lot better than most of the kids here , sure they can spell ( LOL ) real good , but you need a second dictionary to read all the internet abreviations . i hope you get it working real good , i,m seeing more and more people interesred in compact folding bikes like the one you built . i,m sure we will see a lot more of them