Yesterday, I tried to swap out my 40-406 tires for some new 37-406 tires (Innova). I have never experienced such difficulty and frustration fitting a tire onto a rim. After two hours of pushing, twisting and kneading, I finally resorted to levers. Bad mistake. The tire eventually went on (although one lever bent in the process), but when I inflated it I discovered that I had obviously pinched and punctured the inner tube. My fingers and thumbs are rubbed raw from all the effort and I can't face trying again, so I've decided to use the LBS. However, another thought now strikes me. Assuming that said LBS manages to get the tire onto the rim and inflated, what happens if I get a puncture out on the road, in the middle of nowhere? Surely this can't be the way that things are meant to be.