Quote Originally Posted by Owlie View Post
Easiest thing would be to have a spare wheel, but that's a little unrealistic...
Late to the game here, but I DO have a spare wheel with a trainer tire on it and it was cheap. I asked around at my LBS if anyone had a used wheel with a compatible rear cassette for my bike's derailleur and one of the shop guys had just such a wheel that he was looking to sell. I think I paid about $70. It is sooooooo much easier just swapping out the wheel vs. a tire.