mix tires?
Thread Starter
Safety Car
Joined: Jun 2006
Posts: 3,605
Likes: 2
From: Latrobe PA
mix tires?
All 4 tires are Goodyear run flats originals. My back tires are almost worn out. My questions is can I put non runflats on the back and leave the original runflats on the front until they wear out then get non runflats on the front??
I want to eventually go with all 4 non runflats.
Any problem doing this??
I want to eventually go with all 4 non runflats.
Any problem doing this??
Melting Slicks
Joined: Oct 2006
Posts: 3,447
Likes: 6
From: Los Angeles
Sounds like a bad idea.
Runflats have a stiff sidewall, and ride like such. Radials have a softer sidewall you will feel it flex while turning. I would think that a soft sidewall in the front, and a stiff sidewall in the rear... while negotiating a turn that corvettes are designed for... could result in some disasterous effects.
Depending on which radial you go with, a set of rear tires wont be THAT much more. I bought my set of 4 for 530 shipped.
Runflats have a stiff sidewall, and ride like such. Radials have a softer sidewall you will feel it flex while turning. I would think that a soft sidewall in the front, and a stiff sidewall in the rear... while negotiating a turn that corvettes are designed for... could result in some disasterous effects.
Depending on which radial you go with, a set of rear tires wont be THAT much more. I bought my set of 4 for 530 shipped.
Thread Starter
Safety Car
Joined: Jun 2006
Posts: 3,605
Likes: 2
From: Latrobe PA
Sounds like a bad idea.
Runflats have a stiff sidewall, and ride like such. Radials have a softer sidewall you will feel it flex while turning. I would think that a soft sidewall in the front, and a stiff sidewall in the rear... while negotiating a turn that corvettes are designed for... could result in some disasterous effects.
Depending on which radial you go with, a set of rear tires wont be THAT much more. I bought my set of 4 for 530 shipped.
Runflats have a stiff sidewall, and ride like such. Radials have a softer sidewall you will feel it flex while turning. I would think that a soft sidewall in the front, and a stiff sidewall in the rear... while negotiating a turn that corvettes are designed for... could result in some disasterous effects.
Depending on which radial you go with, a set of rear tires wont be THAT much more. I bought my set of 4 for 530 shipped.
Pro
Joined: Oct 2002
Posts: 539
Likes: 1
From: Soddy Daisy (near Chattanooga) TN
Runflatsand non-runflat mix
I was told by Goodyear not to mix the two, although as long as you keep one type on the front and one type on the back looks to me like it couldn't hurt too badly. I wouldn'T push the car hard though as handlling characteristics mnight be different than you are used to.
Instructor
Joined: Jun 2006
Posts: 148
Likes: 3
From: Fairfax Va
I bought by car used, it came with GY runflats on the front and GY non runflat (both Eale Supercar F1 or some such thing) on the back, it was ok but the car was twichy on rutted roads. I replaced the rear with Mich. runflats and the twichness got worse (as in I had problems staying in my lane on rutted highways), so I decided to replace the front tires before they wore out. I now have 4 Mich runflats, and things are great.
So the short answer is that it can be done but it is not ideal, I'd recommend swapping all four. I know you said you were going with non ruflats but if you change your minde the Mich. are a good choice, I am very happy with the Mich. Pilot Sport AS ZP zero pressure,i.e. runflat.
So the short answer is that it can be done but it is not ideal, I'd recommend swapping all four. I know you said you were going with non ruflats but if you change your minde the Mich. are a good choice, I am very happy with the Mich. Pilot Sport AS ZP zero pressure,i.e. runflat.
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Instructor
Joined: Jan 2007
Posts: 135
Likes: 0
From: Houston TX
When I bought my car it had brand new run flats on the rear and really poor runflats on the front. I swapped the fronts with non-runflats (UHP Generals) and the car rides much better than before and I have had no negative problems from the change. The tires are seperate and they are all speed rated and performance tires so other than the one set being non runflat I can not see any problem. Just my .02 Just drive it and replace the one set when it is time. My backs always wear out exactly twice as fast as the fronts.
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Joined: Aug 2003
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Personally - I think that the ride and handling characteristics are so different between the GY EMT's and just about everything else - I think it's a bad idea.
Two sets of non-runflats wouldn't be as bad - but I still wouldn't do that myself. I have bought pairs of tires for the Vette because the backs seem to wear out faster than the fronts (Gee - I wonder why that is?), but whenever I did that I bought matching tires front and back.
Two sets of non-runflats wouldn't be as bad - but I still wouldn't do that myself. I have bought pairs of tires for the Vette because the backs seem to wear out faster than the fronts (Gee - I wonder why that is?), but whenever I did that I bought matching tires front and back.
Intermediate
Joined: Jan 2007
Posts: 27
Likes: 1
From: Cantonment, Florida
I must be the only owner in the US that wore out the fronts first, and I replaced them with the Kumho Ecsta RF's. I have noticed no deterioration in performance thus far. But then again, see sentence 1 . . .