Looking for 17.5R25 tires for a 344J loader, preferably in an ag-type tread.  Galaxy Hippos would be great but the smallest they make them is 20.5-25 and those won't fit on this loader because the rear tires turn when it articulates. 

Is there any other manufacturer of ag tread tires in this size or should I just buy four Double Coin radials? How well do conventional loader tires do in mud? Most of the time this machine will be on my gravel yard but there will be times I could see an ag tread would be the thing to have.  Comments?