I'm helping my gf find tires for the stock 17s on her touring model. Unfortunatly that damn 50 sidewall narrows the selection down a lot.

Her main concern is she wants a tire that will last a long time.

All the good tires i could think of didn't come in the stock 17 sizes, so the best one i could find where the Falken Ziex ZE-512 (seem to be a good balance of performance, treadwear, and price), but since these don't come in the stock 235/50/17 for the rear i came up with a couple options and wanted to run them by you Z experts.

1) use 225/50/17 in front and back (which according the the tire calc i'm using thats a 1.53% diff in diameter).

2) use 225/50/17 in front and 255/45/17 (which is a 0.84% diff in diameter) in the back.

She says she would prefer to stay wider in the back and since the back is 17x8 i figure a 255 would be fine. The only down side i can think of would be increased oversteer.

What do you guys think? Will the 255 fit in the rear without rubbing?

 

but the general rule of thumb around here is that they will fit. everyone thinks 265 might be pushing it though