why would it need to be true? 😉
As long as the carbon blades are mounted soundly enough to keep it straight enough to not rub the frame, then that’s sufficient.
I had a chat with the designer at bespoked and asked similar questions. He has a design in hand to deal with preload – potentially on the fly.
Rear triangle clearance is the biggest problem on larger wheels unless he develops a custom frame. I think he said he could get around 2″ of suspension out of the larger ones which puts it in softail territory.
clearly at this stage its not really for performance mountain bikes, but probably suits the 20″ market quite well. I reckon BMXs could be a hoot with them 🙂