The forks seem to be around 3mm thick, and i can only get 1.5mm thick tubing. I'll try to fill them up with sand then solder a top so it won't bend (hopefully)
I have a kart track nearby, might try it next time.
What do you think that happened when it started wobbling? Could it be that as trailing forks it won't happen or should I try to get me a steering damper?
BTW I rode my NF501 next and i just kept hitting the curbs. They must have magnets built into them