20 inch front wheels - where to buy

[chw2]

Hi All. I am looking for a front rim for my UTB 445dt - ideally 2nd hand (tire is 8.3 x 20 - I'm told rim is 5.5 x 20). I'm in NZ and there are none available at wreckers, or new - can't find any in Australia either. Anyone know where to get theses from. Thanks in advanced.

[murphy1244]

[chw2]

Thanks for the speedy reply. Will keep looking. However if I must replace all 4 wheels on this old getting tired tractor (I expect 8-10 horses have run away - has a front loader on it so extra weight on the front wheels). Should I go down to 16" front with the correct rear wheel ratio, or go up to the 24" front with the correct rear wheel ratio - Does it make a difference if tractor speed and ground clearance are not really a concern. Will either affect the loader negatively I guess. (advice from a wrecker to change the wheels to a common size). Thanks again.