Needed these run flat tires for our Infiniti QX50, and Sam's had the best deal by a couple hundred dollars between the Infiniti dealership and a local tire distributor. The oly issue we had was it took more than a week to have the full set in stock. Once they were in the installation took less than an hour.

It's early in their life cycle, but so far, I'm happy with the performance, noise-levels, and ride of these tires. In direct comparison with the Michelins and Pirellis that we've used before, these have more tread-depth, appearing to have a better life-span. Water evacuation, dry handling, noise-levels, ride compliance all seem to be great.

I think my previous tires were a smoother ride but I haven't had this brand long enough to see if they are as good. Don't drive every day or for long distances. So I gave them 5 stars

Good

This is definitely the longest wear tire I have had. 55000 on the first set now on my second set so far only been 1500 miles but ride and drive like the first set with very easy handling on steering especially in tight corners. It is a run flat tire and since my vehicle comes with no spare I still have confidence when driving on these tires.

These DriveGuard Run-Flats are the best RFs, I've had. I won't use any other brand. Great traction, low road noise (for a Run-flat), decent ride (for a Run-flat) and they stay in balance! I've had other brands and they get out of balance and are impossible to rebalance. I live in an extremely hilly part of the Bay Area (CA) and they tear up the road to my house. We also do road trips all around the state and they are wonderful. Can't recommend them enough>

The tire sales person talked me into getting the DriveGuard Plus since the cost was only about $25 more than the other Bridgestone tires he offered without the drive flat capability. The ride from the new tires is not as smooth as with the old Bridgestone tires (Ecopia) I was used to. I realize the tire design is such that the drive flat capability requires the sidewalls to be stiffer. That results in the irregularities in the road surfaces to create a bumpier ride. If I ever need to drive on a flat tire it will be worth it to have lost the smoother ride. It is not clear what the impact of the rougher ride will be on the suspension, shocks and struts, but now I am worried about that. Time will tell!

Old wheel weights were left on all four tires. I took my car to a small independent shop and had tires rebalanced. Did not take back to Sam's because obviously if they knew how to balance the new tires they would have started by taking old weights off first . If I knew this survey was going to happen I would've taken pictures.

tires wore out in 13 months after 15,800 miles. totally unacceptable. need to find out what the warranty is on these. do not purchase.

These are the worst tires I have ever had on a vehicle. My van has just over 82,000 miles on it, and my third set of run flat tires have worn out in less than a year. Even though my van came with run flat tires because it does not come with a spare, I am done with these crappy tires. I am putting non-run flat Michelin tires on.