18 " winter tires ?? for boxster S 2002
 

Just a question regarding the size of tire i can put on 18 ". Does a 225/45/18 fit .. can i go 245/50/18 ......does anyone know what is the maximun to fit 18 " ring so not touch frame???
What are the perfect size for 18 " winter tires ??
thanks Bruno

Google "tire size calculator".

The owner's manual lists a few tire sizes choices.

A few thoughts.

Does it actually snow in Thailand??

Wheel fashion kinda goes out the window when it snows.

A narrower tire actually provides better traction in the rain and slush. If you are set on 18's a 225/40/18 all around would work well.

17" are often the first choice for winter wheels/tires on a Boxster S. Replacement rubber is about 40% less expensive than 18's and the extra sidewall gives a little more protection from pothole induced wheel damage. Look around and you may find a full set of 17"wheels and tires for the price of 18" tires. Good luck.