I put together a sheet of info on some various Crossfire tire issues, including snow tires issues & a comparison of the 155/70-17 donut spare to the stock tires sizes.
I put it in my user
gallery, but the conversion to .jpg made it less than attractive.
So, I put it up on my web hosting account as a .gif and a .pdf.
Crossfire Tire Info Sheet in .gif form
Crossfire Tire Info Sheet in .pdf form
It is non-exhaustive, but I think it pulls together some needed info into one nice tight page.