why would you tighten your wheel? that has nothing to do with ANYTHING. and jkeil i think it fits, OH
i think i kno the prob. you over tightened either your headset, OR you wayyyyyy overtightened the bolt that threads into your starnut mounted in your fork. it should only be tightened to the point where the play from the headset is removed and doesnt wiggle/rattle but not to the point where it doesnt spin or is hard to whip and barspin and stuff.
http://protoscooters.com/
watch the vid on front page, explains the setup. good luck! talk to andrew if any serious problems, and talk to the owner/manager/whoeverisincharge of lucky.