That's cool man! I like the kick starter mechanism on the first one. I've tried a similar thing with a crank starter on a 20s style car I'm making with a centrifugal clutch to stop the crank from spinning once the engine has started.

I noticed your trikes really like to tip over when turning. Mine was the same before I added the body, so perhaps adding a little lead ballast low down could help?

Cheers!

Hey bro, I made some Drag Tricycles using this chasis (go check them out please), you did an awesome thing right here!