I think the chassis is born correctly. I mean well drawn, with good engineering. I do not think the 400 or so will hurt it. I think that the weak point would be rather the suspension before. Can be too weak, too soft if there is more power.
It is not so much the size of the tubes that is important. It's their use, the right order. There are plenty of examples, other vehicles MEV, lotus seven, racing cars, and the must, the maserati birdcage.
The improvements will depend on what I'm going to find. Either a single engine or a complete burgman. If I have the scooter, I think I will do like the origin. If I only have the engine, it can be lotus suspensions for example. And in this case why not take a Guzzi engine, it's compact, powerful like a 650, air cooled. Thinking. But above all, I want to keep the chassis and the look, the design of L'exo eco
Resonance, Any more happening here? Did you get a set of tubing and frame?
On two wheels now, one is a car tire. Looking for a 2F1R trike.
I am poor, please do not ask me for money or tools. I will ride 100 miles to help for a beer and sandwich.