Originally Posted by Sting
What advantage is there to run the wider 255 50 17 inch tires over the stock size?
I know they are wider which may look cooler but cornering would be hampered and I don't think traction would improve much.
Also are they safe to mount on the stock rims??
Traction in the dry would be improved by running a wider tire. However, in heavy wet conditions and snow conditions, the traction would be hampered due to the extra width. This is because the water/snow has a further distance to try and travel to get out from under the contact patch.
I would only recommend the use of the 255/50R17'* for summer or if you are in a climate that doesn't get any snow. They should be ALOT better than the RSA'* if you choose any one of the brands listed in this thread in both dry and wet (excluding absolute down pours, but what do you need to drive fast in them for?)...