Some other reactions:

I wonder which model will try some more common spoke lacing patterns. Right now there seems to be a preference for radial lacing, which is not super common (but simple to draw). The Flash and Pro one uses 16 spoke rims, which actually exist[1] but are not super common.

The Pro model fails badly at the spokes. Heck, the spokes sit on the outside of the drive side of the rim and tire. Have a nice ride riding on the spokes (instead of the tire) welded to the side of your rim.

Both bikes have the drive side on the left, which is very very uncommon. That can't exist in the training data.

[1] https://cicli-berlinetta.com/product/campagnolo-shamal-16-sp...