docwyte

So I've found a nice set of used snow wheels/tires locally. However they're from a newer cayenne and the aspect ratio of the tires is slightly off.

I have a '06 CTTS, these are from a '13 S. Tire Rack is calling for a 275-40-20 tire for my car, these are a 275-45-20.

Close enough to not matter or should I pass on these and order something from Tire Rack in September/October that's a direct fitment?

Andy E.

Speedo will be off for sure since your overall tire height will incease by over 1-inch. Not too sure if this added height will clear the snow/ice-laden fenders during winter months.

mtnrat

I bought a set of 19" Porsche Design wheels from ebay. I paid $109 each with shipping. They can be had pretty cheap The width is 9" and the offset is 60. They are the winter spec wheels for the 06 CTTS. I ran 20" for two winters and found them a little wide. They definitely got pushed around and felt pretty squirrely in slushy conditions. I can get a narrower tire for the 19". Will see how it goes this winter. They look like this.

jbb01

Probably close enough not to matter but I would go with a smaller diameter tire and wheel. Just my opinion. I have 19" wheels for winter with 255/50r19. Of course it looks anemic compared to the summer 21" but for handling snow/cold weather 19" or smaller is way to go.

mtnrat

Also make sure whatever you get will clear the front brakes on your CTTS. As you probably know your front techno wheel spokes bow out to give enough room. I called the local Porsche Tech to make sure the 19" I was buying would fit. When I got them I tried them on for size and they cleared.

docwyte

Mtnrat, have a URL for those wheels on eBay?

mtnrat

That is a pic from the ebay ad of the wheels I bought. I just searched "Porsche Cayenne 19" wheels" to find them. There a quite a few. Just make sure they are 9" wide with 60 offset.

mtnrat

Ack! 9" wide NOT 8. Amended previous posts.

docwyte

Mtnrat, all the wheels I find that look that the pic you posted are 9" wide...

docwyte

Ok, cool. Plenty to choose from then and since you've confirmed fitment I should be all set. Thanks!

user 83838290

I've got 275/45 R20 for winter all around. No problems whatsoever.
For summer, I run 295/40 R20 and 0 issues as well.

06 TTS

mtnrat

Yea, It took me a while to search and make sure they fit. The final confirmation was going to the parts dept of the closest dealer and the parts guy showing me the screen that shows those wheels as the ones that fit over the CTTS. 9" and offset 60. The funny thing is that I had one coming that I was willing to take a flyer on so I could actually put it on to check fitment. After going to the dealer I bought the other 3 the same guy had for sale, before the one I ordered arrived.

Corso

For the guys running 20s with 275s in the winter, which snow tire are you using? I have a spare set of 20x9 SportDesigns that I plan to mount with snows. As has been brought up, I was a little concerned with the wide footprint and low profile of the 275/40-20 but I just assume use them rather than selling the wheels and buying a set of 18s or 19s with a 255.

Sniffer

My CTT came with a set of Nokian Hakkapeliitta which I haven't used on it yet (only had it a short while) but I expect good things as my X5 has a set and they are excellent

I was told that the rubber is impregnated with crushed shells (possibly walnut) which helps their winter performance - not sure if this is true but they're damned good

They wear pretty well too - I assumed they would be super soft and not last so good but that just aint the case

mtnrat

I had blizzaks on my 20's. I am leaning towards hakkapelitta SUV 8 studded for my 19's.