Back again guys for another great season of riding. Before I put the sportsman up last season I put on some new Bighorn 2.0 tires. The front tires look good to go, but the rear tires look under inflated. Is that normal for the Bighorns? I get that more tread increases grab but I don’t want the tires to fall off the rim. Also as I was putting the wheeler away last season I pushed on the side wall of the tires and heard a quick release of air before it sounded like it closed up. Normal?