Had an 11" wide RZR wheel with a 10" wide tire. Not a perfect size combo but looks and works well. It does not seal. Thought of getting it for the 10 gallon Returning the model saw a couple of videos on youtube though.Usually you put a fuel filler cap on the wheel with a guide and the hole in the nozzle indicates the gap between the wheel and the tire.In one video a person put the filler cap right into the gap inserted on the inside edge of the tire completely ignoring the instructions This strategy in combination with bead oil & nd belting allowed this tire to be sealed in 2 trials for both 11 inch wheels. Schniki!