Hwy9runner

I was told that the selected tire manufacture for the 991 was Pirelli but then read this (see below), making me think I should have ordered the 20" wheels over the stock 19's in the Carrera Cab. Since I am not going to track this car, I thought 19's would be fine, however this article has me rethinking my stance.

http://www.pirelli.com/tire/us/en/ne...o-for-new-911/

BTW...A lot of you purchased the S over the Carrera...Me...I just couldn't spend $130k on the cab vs $111k for the regular Carrera Cab. The .2 to .3 second difference was not worth 15k.

shizzle

I bought my car with the 20" Carrera Classic wheels but bought an aftermarket set of 19" HRE and Michelin Pilot Super Sports. I find the ride is better, the tires are better in the rain and slightly better on the track. Going with 19" wheels is not a bad decision.

spourreza

I went with 19s. At first I was a dismayed and thought i made the wrong decision - thinking that the 19s looked a bit small. But now I am totally cool with it. Why I went with 19s? Despite being a bit smaller, I thought the 19s being offered were the best style rims Porsche has. Also, the 20s look a bit too big. The biggest negative of the 19s is the Goodyear tires!!! Feel soft.

HotLap

Your link wouldn't come up for me, but I have the 20" wheels and like them, they "fit" the new larger bodystyle perfect to me (subjective I know) but I am surprised with all the knocks Porsche is getting for moving up to 20" tires. I won't be tracking this car so the 20's are fine and look great.

Congrats on your new Porsche by the way, enjoy it!

Rainier_991

+1

Bugati Veyron: 20" on front, 21" rear. Can't recall anybody complaining about that one...

20" on the 991 ? Just perfect...

Rainier

rnl

getting a set of 19 inch wheels for my winter tires...will let you know if i can see a difference. have the classic 20 inch now, and they look great, ride just fine, handles fabulously.

parkerfe

Why would 20" wheels/tires not be good for track use?

chuckbdc

There is no reason suggested and I believe noe to be found. It may be tha t19s are cheaper to replace frequently- as would need to be done by very serious trackers. They would likely go for the lighest aftermarket wheels as well- but I have seen no actual data on weights- just specualtion. It is good when reading these posts to understand that serious trackers do a good bit of suspension tuning and care little about tire wear- so it is not useful to generailze from their experience.

scott watkins

http://www.porsche.com/usa/accessori...sanddownloads/

Have a look at "overview summer and winter tires current vehicles"

spourreza

Arent the 20's heavier?

spourreza

Yah but Veyron is a much bigger car than 991, no? And heavier. Makes sense to have the bigger rims. Fits better. No?

chuckbdc

Depends on the tire. Total unsprung weight depends on wheel/tire combination. The effect of unsprung weight varies according to a host of suspension variables. The variance across all variables overwhems tire size in affecting performance.