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Cayenne Off-Road Build - All Terrain Tire Setup for 2009 Turbo S
I'm looking for a good solution for an all terrain tire for my 2009 Cayenne Turbo S. I'll mostly be doing beach driving and light off-roading, the road ride is less important here. The current setup has a 295/35/R21. Ideally I'd like the BF Goodrich All Terrain tire but they don't make a 21. I'm adding a PRG 2 inch lift kit to fit the stock air suspension. I realize I may need to swap out the wheel to get the right tire. Does anyone have suggestions that would fit the existing setup or a tire/wheel setup that work well with the 2 inch lift that won't rub?
I spend roughly 3 months a year on a sand island with no roads and have tried all sorts of tyres in the sand over the years. I tow a tandem jet ski trailer which is about 1.1t loaded. I launch and retrieve the skis from the beach, there are no ramps etc, just straight off the beach. The best tyres I have found are mud terrain tyres, not the super agressive ones but more agressive than all terrain. Also pick one with soft sidewalls so it flattens out more as you deflate it.
Tyre pressures are the more important than anything else. I run down to 11-12psi but you can't go turning hard with the pressure down so low or the tyre can come off the rim and dig in, which can cause a roll over. It's never happened to me but it is on my mind.
With those pressures and the right tyres I can go further than the next guy even when I have the trailer on, I've pulled people out who argue with me that mud tyres aren't as good as all terrains in the sand but who's bogged ?
Be advised, you really need to max out the negative camber. I wore out the fronts really fast (3k miles) with a standard alignment. Just reloaded and the negative camber is def better handling wise. We'll see how the wear is.
I looked into this once myself. Tough to find all-terrain tires, and I wanted something that would perform well on pavement. So I went with all-season. For beach and light offroading, I think they would work as well. Do you have skid plates? So far I have not found anything decent. My sense is that I would have to have them custom made, though I have not found anyone to do it.
Similar here, run 265/60R18 Goodyear Duratracs as my winter set up on stock 18's, so 31's work on my 05 CTT, with no rubbing, at ANY air suspension level, thats a good 2 in more than stock 275/40R20's. And as others have mentioned, 265/65R18's work as well, thats the TransSyberia size, 32's. I just wanted to keep some street handling so didnt go that tall.
Have to be careful too, as some tire manufactures 265/65R18 might be a little taller or wider, within the allowable standards window, and due to mold shape and upper shoulder decoration, etc. especially with the large shoulder elements and blocks as used on off-road tires (trust me, i know, I design tires for a living)!!!
Anyway, if you stick to 31-32 overall OD, you should be fine. The real trick is, I dont think your gonna find much if anything to fit that OD restriction and work on a 21" wheel, so new wheels may be in order.
You ain’t gonna fit anything smaller than VERY special 19” over those CTTS brakes and even those will just barely clear the calipers so not that good for offroading.
+1. The best approach as LupoSK stated is go with 20s and a good all terrain tire. I would be very nervous about going off road with the huge CTTS brakes and 19s... I've seen the clearance with this setup and there is hardly any room at all between the brakes and the front rims.
Ours TTS Brakes are 380mm the biggest out there.. the new RSR uses the 380mm still.... lol..
i think 20in will work on the TTS.. but still not many off road tires in 20s... just keep it in jacked mode.. Rednecks love it...
I ran 265/65/18 BFG KO2's on steel suspension for a while. They fit great but the 10 ply LT tires were too heavy and stiff for my liking. Then I tried Pirelli Scorpion AT's and Geolander G015's. I liked the Geolanders the most out of the tires I tried - they are quiet and well behaved on the highway and ride well on packed dirt. I settled on 265/60/18 as a compromise for all-round usage on-road and light off-road
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Yep, agree, 265/60R18 is a great compromise.
also, try to stick to P metric tires as apposed to LTs, unless your doing some serious off roading, the additional weight due to additional plies, heavier wire belts, thicker sidewalls is unecessary and why the ride is worse.
of course you may not have the option depending on specific tire and size your looking at.
for me the Goodyear Duratrac has several large P metric sizes in addition to LTs.
07-17-2020, 04:05 PM
Cayenne Off-Road Build - All Terrain Tire Setup for 2009 Turbo S
