I've seen some stuff about where to get cheaper yet still high quality replacement tires for the 21", but haven't seen much on the 19". With my annual coming up in the next couple of weeks, I've been thinking about the subject. When the time comes, where should I be looking for new tires? The ideal theoretical situation would be if I could get cheaper yet quieter, better quality tires. I'll take cheaper at the same quality, or slightly more expensive and quieter (yet the same quality). Of course I'm comparing to what Tesla would sell me.