2010 370 roadster rear tires
 

Hi all

I have 2010 roadster. What would be the largest tire I can put on. I have the 19 inch rays wheels. it is 305/30/19?

With a wider wheel with correct offset, 345 is not out of the question. I run 325/25/20 on 20x11.5 and there is plenty of room inside the wheel well left to accomodate a 345.

What offset are you using?

If you're talking about the Ray's that come w/ the Sport pkg. Yes, you can go 305/30/19

265/305 is pretty popular set up...I'm running that currently on my Ray's. While I dig the meaty meats, I can feel the car is slower...even though I have some mods and I'm at about 318WHP. Next time, I'm going 255/35 & 295/30 and add back my 20mm spacers.

That being said, unless your car is boosted or modded/tuned fairly substantially, you're going to feel the extra weight and drag from the over sized tires...feel = slower.

exactly..

305 is a BIG tire, had them on my 997,,i might go up a size or two 285/295 depending on what brand I pick and how it specs to original Re 050A Stones.
front stock tire is fine sizewise, bigger might screw with PS pump, handling..

I just put 305s on my 10 roadster
http://i1087.photobucket.com/albums/...pswaf2heib.jpg

any wheel spacer?

nope but my car is on swifts so its lower than stock

I just ordered Mickey Thompson ET Street S/S 305-35-19 to get the power to the ground :driving:

I believe not all 305s are the same physical width or height, Tire Rack has all the specs on height, tread width, ratings etc.

they are not the same. all have differences. one brand may fit another may not.