Originally Posted by BB11

I spoke with Vredestein today, great customer service. They feel the HiTracs will ride softer and quieter and getting me a new set replacement at no charge. I will try them and hope for the best. I am no longer an aggressive driver (I think that comes with age), easy on brakes and the gas pedal although with a GS on the highway one has to look at the speedometer as the car flies.

I did get 40,000 out of the Pirelli P7’s, to me a 70,000 mile warranty is not something I pay attention to as I have not heard of any tires that go as long as their warranty.

BB

Originally Posted by peteharvey

Judging by the UTQG tire compound treadwear index, the QuadTrack is rated at 400 while the HiTrack is rated at a whopping 700, hence your new HiTrack has a harder compound that lasts nearly twice as long as your old QuadTrack.

What was your old QuadTrack and new HiTrack's load and speed ratings?
I suspect the old QuadTrack is a higher Y rated 300 kph metric speed rating with a more rigid tire construction, while your new HiTrack is a lower V speed rating rated at only 240 kph metric with a much more flexible construction for a softer ride.

​​​​​​Hence, while old QuadTracks have a softer compound with a more rigid construction, your new HiTracks have a harder compound disguised by a more flexible construction.

Normally, the harder compounds are noisier.
However, I find that softer compounds like your old QuadTracks start soft and quiet but must become harder and noisier as the tread blocks wear down.
On the other hand, I would expect your new HiTracks to be harder and noisier the whole way through - but this will be cushioned by a more flexible lower speed sidewall construction.

https://www.tirerack.com/tires/Spec....Pro&isSEO=true

https://www.tirerack.com/tires/Spec....son&isSEO=true

Originally Posted by BB11

I spoke with Vredestein today, great customer service. They feel the HiTracs will ride softer and quieter and getting me a new set replacement at no charge. I will try them and hope for the best. I am no longer an aggressive driver (I think that comes with age), easy on brakes and the gas pedal although with a GS on the highway one has to look at the speedometer as the car flies.

I did get 40,000 out of the Pirelli P7’s, to me a 70,000 mile warranty is not something I pay attention to as I have not heard of any tires that go as long as their warranty.

BB

Originally Posted by BB11

i had the HiTracs installed. You guys were spot on, nosier than the Quadrac Pros when installed, not as noisy as the Quatrac after 10k. I will be replacing these.

Originally Posted by peteharvey

Best to accept Chinese ownership of Pirelli and don Cinturato P7 All Seasons.

Originally Posted by BB11

it appears the Italian government has stepped in to limit the CCP ownership and their influence, so I will be looking at the P7 + I think it was again.