Well.. i was looking on tarty and all of the 20" rims are all front rims but you could ring up tarty and ask them if you could put a front rim on the back.
I wouldnt get a onza ice as a first bike if i were you because you will probly bash it about allot and you will be gutted if its got loads of dents and cracks in it, if i were you i would get a da bomb or a onza t bird or something like that because they are pretty cheap and it doesnt really matter if you put a few dents in it.
matt.
well knighton is like 40 miles away and bishops castle is even less,i have a da bomb and so does my other friend and my other friends have onza's, yeh ok i'm up for a ride sometime,add me on facebook to talk more my name is MATT CUNNINGTON.