35psi is definitely too low, correct for the 19s is 42/46 IIRC, on the 20s it should be similar... for the 18's its 41/46; so by this mentality the 20"s should be around 43/46 or something to that effect....

Easiest method to determine correct tire pressure; get a window chalk marker and make a few lateral stripes across the tread on one front and one rear tire; then drive straight for a few hundred feet. Now you can see what wore off; if only the middle was left, increase pressure; if only the edges were left, decrease the pressure.


In other news, the wheels look great!

 

JRiffe108 , how do you like the Yoko Parada Spec X so far?
I have them on mine, and as I have reported in the past, my only complaint with them is that they are noisy ONLY on some of our concrete highways. On asphalt, they are fine. My winter tires on the other hand are quiet as a mouse on the concrete surfaces, so I don't know what's up with this Parada Spec X design.

Sharp wheel and calliper setup by the way!

 

Hey, I settled on 39 front/ 41 rear on psi. I still haven't experienced any wet weather to comment on but dry performance is great. Tires are very quiet on every surface I have encountered. They recently chip sealed some farm to market roads in my area which usually increases the road noise, however, the parada's are quiet at 50-70 mph. I haven't had much time on concrete so I cant comment there. They still don't show any wear with little over 2k miles on them. I mean the mold nipples still haven't worn off the center tread. Yes, I chalked the tires to inspect for proper wear while playing with pressures.

The only complaint I have is the tiny rocks the sipes pick up. They are small enough where you don't hear them when they roll, they just look like nails and debris, my OCD kicking in. Lol

The bounce I spoke of when they were new has disappeared as they have been through heat cycles and ride very nice now. I am surprised they ride as well as they do on 20" with 45 series sidewall and 40psi.

They balanced well and have maintained the weights so far. I have not experienced any problems with flat spots or out of round tendencies.

I am extremely pleased so far with these tires and just want some darn rain so I can see how well they handle it. That was my biggest concern. They hold air well and have only lost about 2 psi over the last month. At sustained 70 mph with ambient air temp of 100 degrees, I observed a increase of psi of approximately 5 psi and a tire temp of approximately 120 degrees. This was observed on a 30 mile trip. This was with "cold" tires, in garage, starting at 90 degrees static. These observations were recorded using an orange tpms system. All four tires when warmed up ride better than cold as one would expect, along with a reduction is noise.

Not a large difference, but noticeable. They are stiff enough for precision turns without any feeling of flex in the sidewalls.

Hopefully we will be granted with rain sometime in the near future so I can advise you of my findings. For dry weather performance, noise, comfort, and the price, I would highly recommend this tire. Hopefully the compound remains the same and I can get good treadwear out of these.

Thanks for the compliment, I am very pleased with the setup. However, I would like about 10-15mm more width. After swapping from the 285 michs, these do look alittle narrow.
I had a guy at lowes pull over as i was walking out compliment me on them, said he wanted to buy a cayman sometime soon, I said, oh, your a sports car fan huh, why not a SUV? He looked at me like i was retarded. He said no, a cayman, just like yours, I told him mine is a VW, but you're talking about the cayenne, right? He was completely confused I think and just drive off. Gotta love the guys driving a minivan with dreams.

 

....... I am very pleased with the setup. However, I would like about 10-15mm more width. After swapping from the 285 michs, these do look alittle narrow......

This has always been my wish and thoughts. I'm running 275/40/20, but really wanted something just a tad bit wider like a 285 or even perhaps 295. This would of completed the look I was after, smack dead on. Perhaps we can exchange notes here, but I ran into a dilemma after I bought my 20X9 (same size as yours) mags. When I would skim down various manufacturers tire spec/fitment guides, it would print that 275 width was the maximum recommended tire width on a 9 inch mag like ours. This is something that has always bothered me, as I really don't want to have to sell my 9 inch mags for a 10 inch, since my type of mags don't even exist in 10 inch to begin with. Googling around did inconclusively prove that some in the Dodge 300 and Durango forums are mounting slightly wider tires over 275 on their 20X9inch mags, and they are reporting no problems. I wasn't sure if I should follow the few in that crowd. I do understand that when it comes to these kind of mechanical matters, things are necessarily really written in stone, but sometimes there is a safety threshold that needs to be adhered to, so this is what I'm still trying to figure out.

 

If the mold nipples still haven't worn off the center tread it is likely the air pressure is too low and the contact patch is not optimal yet.

 

If the mold nipples still haven't worn off the center tread it is likely the air pressure is too low and the contact patch is not optimal yet.

I should have been more specific, I mean the contact tread, not the sidewalls. The entire contact area has small nipples, not just section of the tire. Multiple chalk lines were used to determine proper pressures. The long curly part of the nipple has worn away but the bottom post section still remains. I guess I need to drive alittle harder to wear them off.

 

Dude, I had factory atheos 19x9 with 285 Michs mounted. They looked great, wore evenly and of course did not rub anything, anywhere. Even in loading level, lock to lock. My problem was locating a tire made that was a 285/45/20 or 295/45/20 that fit my needs. As far as dry/wet weather performance, treadlife, quality ride and quality product, big name tire manufacturer, and of course price.

I would rather have a bit narrow tire with performance than a no name or $350+ tire just for the looks.

Maybe we will see some good candidates by the time I need a new set.

 

For sure, those 295/45/20 sizes won't rub. I mean there are enough guys with 285 fronts and even 315 rears on here.

I think the main concern(in what I wrote up above) was that anything over 275 on a 9 inch rim is too wide for the rim itself. Of course, I'm basing this on the tire manufacturer recommendations. If you go to the Yokohama website, you will see that they have listed the maximum rim width allowable for each given tire size. I do wish someone could prove this otherwise.

 

I wouldn't worry about a 285 on a 9" wide. Going to a 295 may present problems with balancing issues and possibly safety if driving very aggressive or towing trailers.

 

285s on a 9" should be fine... granted I have significantly more sidewall, but my 285s fit on a 8" wheel fine

 

Ok, thanks for clearing that up guys!

2005 Touareg V8 Galapogos Grey......


Enjoy the pics.

Oh BTW JRiffe108, I alomost forgot to mention! In your opening post you mention that your Touareg is Galapogos. Yours is off-road grey, just like mine. .

 

I hope you don't do any off road as your rotors will be trashed in no time. Nice looks but impractical in anything but the city.

siberian

 

You__are__so__kind, Siberian

 

Well I just pointed out the truth. They're really nice looking rims as long as you stick to the Interstates and paved roads. Outside of that can you SEE the rocks and crap being flung inwards towards the... as I said nice looking rims.

siberian