Weed Eater One

I need a replacement rear wheel for weedeater one. I was given a weedeater one riging mower last year, sorry I don't have the model/serial # handy at the moment. Last time I tried to use it, one of the rear tires was shredded. So I began the hunt for a replacement tire...it has not been fun. I measured the tire and the wheel hub. The hub measures 2.75". I wanted to buy a marathon flat free replacement wheel, but the options for purchase are for 2.25" hub, and a 3" hub. Does anyone know if either of those will work?