Concerned
Thread Starter
Instructor
Joined: Mar 2009
Posts: 174
Likes: 6
From: Pearl River New York
Concerned
I just bought my first C7, this is my 5th vette, last was a C6. I purchased a certified 2015 LT1 from a chevy dealer.I'm concerned about all the problems with the bent wheels and cracked rims, I have Z51 black wheels, is there ant problems with these, also the first time I pulled it out of the garage and cut the wheels hard got a thumping noise or slipping which I can feel in the front end, I get in both directions, left and right and forward and backward with the wheels cut hard, ok when i'm driving and normal turns. Before I bring back to the dealer I want to see if anyone else has this problem. never experienced this before. I have the Michelin pilot super sports and 20,000 miles on the car, 19's front and 20's rear.
Safety Car
Joined: May 2016
Posts: 4,486
Likes: 1,028
From: MN
Hi! While it's a bit of a shock the first time you feel it, this is normal. There is a discussion somewhere in the manual, but here is one of several links to the effect. It's called the Ackerman Effect LINK
Regarding bent wheels, there are very few reports on the Z51 or Stingray wheels, which are narrower than the Z or GS.
Have fun!
Regarding bent wheels, there are very few reports on the Z51 or Stingray wheels, which are narrower than the Z or GS.
Have fun!
Burning Brakes
Joined: Oct 2016
Posts: 842
Likes: 195
From: Binghamton, NY
Hi! While it's a bit of a shock the first time you feel it, this is normal. There is a discussion somewhere in the manual, but here is one of several links to the effect. It's called the Ackerman Effect LINK
Regarding bent wheels, there are very few reports on the Z51 or Stingray wheels, which are narrower than the Z or GS.
Have fun!
Regarding bent wheels, there are very few reports on the Z51 or Stingray wheels, which are narrower than the Z or GS.
Have fun!
Race Director
Joined: Aug 2015
Posts: 12,220
Likes: 4,710
From: SE WI
You don't have the wide body version of the C7 corvette so no worries about bending rims. It's very rare on the more narrow rims of a Stingray.
Tire chatter is completely normal with summer tires. No need to take it to the dealer. Complete waste of time.
Just go drive and enjoy your car.
Tire chatter is completely normal with summer tires. No need to take it to the dealer. Complete waste of time.
Just go drive and enjoy your car.
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The tire chatter is normal on the OEM Michelin tires. As said, some all season tires will eliminate the noise.
And I do not recall hearing of the base and Z51 wheels having a problem with bending or cracking. It has been mainly the GS and Z06 wheels that have been problematic.
And I do not recall hearing of the base and Z51 wheels having a problem with bending or cracking. It has been mainly the GS and Z06 wheels that have been problematic.
Drifting
Joined: Oct 2014
Posts: 1,733
Likes: 403
From: Atlanta, GA
Welcome to the community and ENJOY your new to you C7!
Just like the fellas above said...all normal. And the colder it gets, the worse the tire hop/chatter/akerman effect is. But, if you get the Mich Sport all season tire...it's gone. Totally gone. Plus, you'll never have to worry about driving in super cold temps. You just can't track the car with All Season tires.
Have fun sir.
Just like the fellas above said...all normal. And the colder it gets, the worse the tire hop/chatter/akerman effect is. But, if you get the Mich Sport all season tire...it's gone. Totally gone. Plus, you'll never have to worry about driving in super cold temps. You just can't track the car with All Season tires.
Have fun sir.
Thread Starter
Instructor
Joined: Mar 2009
Posts: 174
Likes: 6
From: Pearl River New York
I find this unbelievable this is normal. My 2000 C5 had run flats, and I ,drove it occasionally in the winter when their was a mild day and never experienced this, I live in the new York area and it was cold those days I took it out, about 40 degrees and I know your not suppose to drive it in the cold with these tires, but never expected this, it was kind of violent. i'll probably replace the tires with *** season when the time comes.
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Le Mans Master
Joined: Dec 2012
Posts: 6,442
Likes: 2,535
From: New Jersey
I find this unbelievable this is normal. My 2000 C5 had run flats, and I ,drove it occasionally in the winter when their was a mild day and never experienced this, I live in the new York area and it was cold those days I took it out, about 40 degrees and I know your not suppose to drive it in the cold with these tires, but never expected this, it was kind of violent. i'll probably replace the tires with *** season when the time comes.
Melting Slicks
Joined: Nov 2005
Posts: 2,142
Likes: 484
From: Leonardtown Maryland
Like said - "Normal," and it is mentioned in the Owner's Manual. My C6 GS did it on the stock Goodyear runflats, but when I switched to Bridgestone runflats it stopped. My '19 does it to so just back out slow and ignore it.
Safety Car
Joined: Jul 2018
Posts: 4,303
Likes: 2,055
From: Margate, FL
Similar story for me. The factory Michelin run-flats = tire chatter turning at parking lot speeds even in warm FL. I switched to normal (non-run flat) Bridgestones = almost nothing, they chip just a tiny bit now and only at full lock.
As others mentioned the cracked wheels are mostly on the GS and Z06 cars which have wider widths, the narrower Z51 aren't effected.
As others mentioned the cracked wheels are mostly on the GS and Z06 cars which have wider widths, the narrower Z51 aren't effected.
Team Owner
Joined: Sep 2000
Posts: 24,989
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From: Far NW 'burbs of Chicago
St. Jude Donor '13
I find this unbelievable this is normal. My 2000 C5 had run flats, and I ,drove it occasionally in the winter when their was a mild day and never experienced this, I live in the new York area and it was cold those days I took it out, about 40 degrees and I know your not suppose to drive it in the cold with these tires, but never expected this, it was kind of violent. i'll probably replace the tires with *** season when the time comes.
Depending on conditions, sometimes you can avoid the shudderjump by not cranking the steering so far over. Not exactly a fix, but a work-around.
Safety Car
Joined: Jul 2018
Posts: 4,303
Likes: 2,055
From: Margate, FL
Drifting
Joined: Jan 2018
Posts: 1,332
Likes: 630
I find this unbelievable this is normal. My 2000 C5 had run flats, and I ,drove it occasionally in the winter when their was a mild day and never experienced this, I live in the new York area and it was cold those days I took it out, about 40 degrees and I know your not suppose to drive it in the cold with these tires, but never expected this, it was kind of violent. i'll probably replace the tires with *** season when the time comes.
Team Owner
Joined: Sep 2010
Posts: 32,040
Likes: 4,610
My Z51 wheels are fine as far as I know.
I do not recall hearing of the base and Z51 wheels having a problem with bending or cracking. It has been mainly the GS and Z06 wheels.
The wheel tire hopping is intensified because the fronts are of less circumference than the rears. The Smart car suffers from this effect at crawl speeds as well when being towed.
I do not recall hearing of the base and Z51 wheels having a problem with bending or cracking. It has been mainly the GS and Z06 wheels.
The wheel tire hopping is intensified because the fronts are of less circumference than the rears. The Smart car suffers from this effect at crawl speeds as well when being towed.
Le Mans Master
Joined: Jun 2002
Posts: 6,411
Likes: 3,598
From: Commerce Texas
I find this unbelievable this is normal. My 2000 C5 had run flats, and I ,drove it occasionally in the winter when their was a mild day and never experienced this, I live in the new York area and it was cold those days I took it out, about 40 degrees and I know your not suppose to drive it in the cold with these tires, but never expected this, it was kind of violent. i'll probably replace the tires with *** season when the time comes.
Science.... not bad design...
Le Mans Master
Joined: Dec 2013
Posts: 5,887
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From: Calgary Alberta
Racer
Joined: Feb 2018
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From: Central Texas
