06-13-2011, 04:53 PM
don't know what you plan on doing with them, but the 225 would be a better choice for the street IMHO, assuming they're cheaper. And if they're the same compound as the 245-255, then they'll have as much grip too unless you get them too hot (which shouldn't happen on the street, or even an autocross). And they'll usually go better in water and snow too.
The only thing that stops a bad guy with a van is a good guy with a van