I got the bike today nicer than photos 0mly 1,300 miles for a 1984 asw a spec sheet fot this bike it sais Rear tire 460-17 mine is 3.75/4.25-18 also 110/90-18 I had already ordred 460-17!!! Damm is this common? So I can rplace it with a 3.50-18 or a 410-18 or a 460-18 So i placed another order for a 4.10-18 hope thats correct. now I payed a extra $18.00 shipping because of that wrong information!!! What size rear is on your XT-250?