ok, i got a call today from the place where i am getting the bike. apparently they don't sell the street addition, just the dirt bike type. so ill be getting it with a 21 in front rim (will look like the pic, but in black), and a 18 in rear. the tires look very knobby in the pic, so I'm thinking ill have to buy a better tire since ill be mostly on street. been looking around, and have some questions. my specs say 3.0/21 (4.1/18 rear)- which i don't see a whole lot of choices for. there are a lot more variety that say 90/90x21 or 100/90x21 etc - wondering if that works too, or if the 3.0 vs 90/90 means rim size? thinking of a 70 on road 30 off road tire. also, what is the difference between 90/90 100/90 100/80 etc. And would i be better off buying an 18 in rim for the front instead of the 21? what advantages etc.. oh, and another thing, the tires also have (59Q) (58S) (56T) (56S) (51L) etc after tires sizes. what does that mean? last thing, tube or tubeless? do i have to wait and see what my bike has? first time bike owner so sorry if my questions are bush league. just trying to learn as much as i can. TMEC200-1-3_i3.jpg