Been enjoying my Ti Sport for 3000 miles. I have the staggered Run-Flat Perelli‘s. No problems, they seem fine. These are my first run flat tires in any car. I also purchased a small air pump to throw in the trunk in case they deflate a bit, from normal use for future possible slow leak to get me to the tire store to avert damaging the stiff sidewalls of this design. Being the car is a lease, I’m wondering if I need run flats on the car when I turn the lease back in? Also how do regular tires change the Giulias driving dynamics?
Run Flats or Regular Tires?
1alfa
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2018 Q4 with Fiamenghi Ti exhaust, Race Mod, and Tecnico wheels.
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Michelin calls their run flat tires "ZP". The QV P-Zero Corsa tires are clearly not RFT and several pictures have been posted in the forums of them collapsing to the ground when deflated.
In my runs through the Sierra Nevada mountains the Pirelli Cinturato tires hop when I accelerate on rough pavement. This is not subtle, it is not even at full throttle, and it most certainly is not theoretical. My Michelin tires, mounted on lighter weight Tecnico wheels do not hop on the same road and similar acceleration. Your 0-60 times are measured under different circumstances.
Tirerack shows a 2-3 pound penalty per tire for RFT.
I agree that RFT will get you out of situations that a flat fix kit will not. I disagree that RFT is a substitute for a spare; if you shatter your rim (one such case reported in the forum) you will not be able to drive on an RFT. I did not recommend for or against RFT, but just posted what I have done and the facts associated with it so that other people can make an informed decision.
I have been driving for 44 years and in that time I have needed to install a spare tire once and that was most likely due to an overinflated (as shipped) tire. I have gotten several flats from screws and nails, but all leaked slowly. I have hit potholes very hard but never had one injure, much less flatten a tire.
Yeah, nor does the Pirelli site offer much detail on the AR spec.
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Either way I have driven the Corsa ARs and personally seen how much they deform when flat/very low on pressure and would not drive them in this condition.
What is your personal experience with the Corsa ARs? Do you like them? Have you driven them after a nail or puncture? How fast and how far were you able to go?
Can you please link to such a pic?
The rest I don’t want to get into beyond what I’ve already said on the matters.
Also, I just double-checked my partner’s QV tires, and they are AR badged and do not say “run flat” as my P7s Cinturatos do.
QV corsas are not run flat. They include an emergency inflation kit as well, which would be uncommon to see on a car running run flats.
You have a qv?
2018 Q4 with Fiamenghi Ti exhaust, Race Mod, and Tecnico wheels.
Joined
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12,077 Posts
Too many posts and way too much time to waste trying to find said pictures. Here is @MINIME 's picture-less post
https://www.giuliaforums.com/forum/289-alfa-romeo-giulia-general-discussion/37770-pothole-7.html
AR does not include a flat fix kit with the QV "just for grins". If it does not say run flat it is not run flat.
You can "play it safe" with RFTs or have a car that drives better without. It is an individual decision.
No pics, huh? Too bad, because if the tire is visibly zero pressure, that'd be pretty definitive. For example, here's mine from last week:
You can clearly see the sidewall gash; it was about 1.5" long. It seem pretty obvious that'd lead to a zero pressure condition, but interestingly, the TPMS was still showing 10psi! Given how ridiculously unresponsive and inaccurate the system is, I wasn't totally surprised.
The tire doesn't appear as compressed at the bottom as I might expect a conventional tire to be with zero pressure, and the wheel is still held up a fair amount by the runflat components.
.No pics, huh? Too bad, because if the tire is visibly zero pressure, that'd be pretty definitive. For example, here's mine from last week:
![Image]()
You can clearly see the sidewall gash; it was about 1.5" long. It seem pretty obvious that'd lead to a zero pressure condition, but interestingly, the TPMS was still showing 10psi! Given how ridiculously unresponsive and inaccurate the system is, I wasn't totally surprised.
The tire doesn't appear as compressed at the bottom as I might expect a conventional tire to be with zero pressure, and the wheel is still held up a fair amount by the runflat components.
I would say that tire did it job if it still held 10psi after that gouge. Impressive
Is that what runflats are supposed to do, hold some pressure? I didn't think so, and I don't believe it held any pressure, but I didn't examine it closely. The tire let loose on the highway at about 90mph with a few seconds of loud hissing, so I just can't imagine there was anything more than atmospheric pressure left in there.
No, runflats can't hold sir pressure when there's a gash. The have a reinforced/stiff/different sidewall construction that doesn't need air pressure to keep it's shape.
The car in the picture above doesn't appear to have runflats, as that sidewall is collapsed.
Edit: or maybe it just looks that way because they are such low profile.
I drove on the pictured tire for several miles, and can assure you they are runflats, but you can confirm for yourself by examining the sidewall at 11 o'clock, where you'll find the words "run flat," matching the factory spec for the car.
Yep, like I said, the look is a little deceiving since the car has such low profile tires.
Interesting, as I thought the opposite, that the low profile made it almost appear to be not flat.
In any case, I posted it as a standard for evaluation and benchmark for comparison, but alas, none of the several photos @lockem referenced have come to light.
I should add, too, that it is almost certainly irrelevant, as there is no supporting documentation from Alfa that I can find for run flat QV tires, whereas your point about the presence of the inflation kit and it's documentation sufficiently proves to me that the AR Corsas are not runflats. Thanks for pointing that out to me.
There may be some Pirelli run flats but QV’s at least in 2017 shipped only with PZero Corsas and they are absolutely not run flats. Also you can’t plug and patch to my knowledge a run flat. I have had at least one of my rears plugged and patched. They are performance summer tires. They have the inflator and goo as your temporary fix. Run flats were standard on all the other Giulia trims. I asked about run flats since I know they are better than they use to be and it was recommended if you could find the set up to not do run flats on the QV. I went back and read my original post. The 434 price was off. Over 550 at the dealership. Much cheaper at discount tire but I was in a bind because i hit a nail and she was flat as a pancake.
Negative. Mine is square w/ runflats.
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