My favorite topic! - Manual Labor 101
You buy 2 - 2 foot long tire irons with angled spoon ends and a big rubber hammer. First drip a soap and water solution all around the tire/rim bead edge. If the tire hasn't been off in a while you will need a good sized truck or junky car to run over the the tire to break the edge (bead) of the tire free from the rim. Oh, Just run over the tire portion and don't run over the steel rim (rims bend and tires cut). Orrr.. for a hundred bucks you could buy a tire bead breaker. It's this marvey device where the tire sits on the floor and it has this handle with a shaft attached to this curved piece of steel which sits along the bead edge that you are to simply push down on handle and the tire bead magically breaks away from the rim (Don't believe it). I think Harbor freight sells em. Once the bead is broken you then wrestle with the tire with the tire irons working the outer rubber edge of the tire in short bites all the way round until one complete end of the tire pops off the edge of the rim bead. Take too big of a bite and you will not be able to stretch the tire over the rim. You then proceed to do the same thing with the other side of the tire lip edge prying away in short grabs to pull the edge of the tire lip over the rim edge. Once you seperate the tire from the rim you sit down with the sweat dripping down from just about everywhere and you say, why didn't I just take this thing down to the local garage! Putting the new tire on is pretty much a piece of cake once the rim is cleaned. You dab on the soapy water solution all over the edge of the tire. You then place the tire on a slight angle on the rim and stand, jump, and beat it as far as it will go onto the rim with BRH(Big Rubber Hammer) without hitting the rim (broken ankles, hands, and hammer shock to hand and wrist will ensue). Once you get it on the one edge of the tire you pry away with those tire irons again. Once the first side is on then you can get the other edge started in the same way as previously described but then you need to go back to those wrestling tire irons. In small bites pry the tire edge onto the rim. Do not take too big of a bite with the tire iron or you could break the rim if its a chromey or wire wheel type. Sometimes you get lucky and you can just stand on the tire at this point and press it over the lip of the rim. Sometimes you can't. If it's a steel rim you probably won't have to worry too much about damage if doing it by hand. This whole process takes practice and over time you can get pretty good at it. In order to get air into the tire you need to compress or bounce the tire to push out the tire bead to get the air in especially if it's a tubeless tire. Once again after you are done with this process you will be asking yourself why I didn't just bring the tire to the local tire place. Oh... and did I explain that you probably have to bring it to the local garage anyway if you want the tire speed balanced? Otherwise, it may just do the wheel hop dance thing at speed down the road.
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