I will put some thought into a piggyback situation on the back. Or I guess I could do what one poster said and just keep the extra rubber since that's the hard part to find. It's a 2016 Flagstaff 185/80/R13. Load D. Last week our trip to Panama City we had a blowout around Montgomery and called/went to 4 different places including Walmart with no luck. All special order. So I drove the last few hours wo a spare...slowly. Found a place in Panama that had 1 on clearance 2 years old and only load level c, but was the best I could do. We made it back to Chicago without incident. Our last flat was in Texas and had to use a 175/80/R13 Load C to replace because that's all I could find. Must be an odd size tire or something. I now have 3 tires..all different.