What's the weight limit of the IVE? I read somewhere on another thread 80kg because of the rear wheel? Is that from the 120mm hub? Would this limit include the rider plus loaded bags?

I'm a bit worried about the chain stay of the Spin because it's only a single straight member all the way from the rear wheel to the seat post without any bracing. That creates a lot of bending moment. If they had added a seat stay, and another seat post tube on top of the others so that the seat post goes through 3 tubes, it would be stronger and would still be able to rotation fold.