You can with a razor,MGP and all other scooters with a "6inch tube.
There's no doubt that a threadless headset will spin faster and last a lot longer then a threaded headset.
Yes but you need to have a spare headset for it
No deck is threaded it is the headset and the forks that can be threaded or threadless
Go to Inward Scooters and buy there bolting system! That will stop the wobbling. But be careful bolting your deck will stop you from folding the scooter. Then get metal core wheels and nicer bearings. finally the headset and bars. get new 1 piece bars. and with the headset. get an fsa threadless headset or get a threadless envy headset! hope this really helped!
yes it can thanks madd gear team rules
razor
yep
Yes
about 9 inches
120 kg
No
yes, yes i do like willies :D in ma bum....