Originally Posted by
burnthesheep
The key is having a "trainer rear wheel", not the tire. If you buy a trainer tire, but don't have a trainer dedicated wheel, you're wasting time swapping tires all the time. Which is silly.
Buy a cheapo 10/11spd rear wheel (probably heaviest possible for more flywheel effect), and put on a used tire you don't trust on the road any longer.
Totally agree about this, but in many cases lots of us have crappy old wheels to use, so don't need to buy a new one.
The challenge, though, is the cassette. If you have very different cassette wear on the trainer wheel and outdoor wheel, then you're going to have choppy shifting on at least one of them.