Opinions on tire replacement - ZR-1 Net Registry Forums

XfireZ51 · 03-02-2020

Quick question.
Thoughts on whether to replace rear tires with good tread depth and Manuf.
date of 4413?
Would u run them another year?

secondchance · 03-02-2020

Quote:

Originally Posted by XfireZ51

Quick question.
Thoughts on whether to replace rear tires with good tread depth and Manuf.
date of 4413?
Would u run them another year?

Depends on how you drive.

Ccmano · 03-02-2020

Michelin says 10 years max. As long as they are inspected yearly.
H

https://www.michelinman.com/howLongTireLast.html

XfireZ51 · 03-02-2020

Quote:

Originally Posted by secondchance

Depends on how you drive.

I do spirited driving but typically stay under 90. Don’t do much in the way of racing. Still good tread even in the middle portion of the tire.

Hans,

Thanks. The tires look good.

Young1 · 03-02-2020

No sudden moves or heavy power when cold. Take it easy.

XfireZ51 · 03-03-2020

Quote:

Originally Posted by Young1

No sudden moves or heavy power when cold. Take it easy.

Ask me how I know that already.

Paul Workman · 03-03-2020

Quote:

Originally Posted by XfireZ51

Ask me how I know that already.

Yeah, that's true for most "summer" performance tires - Nittos for sure!

Time for new (for me) is triggered when traction when warm reminds me of traction as tho it was only 30º!!

My last set had over 50% of the tread left, but they were 5 years old and were definitely past their prime (for spirited driving...very spirited!).

EvanZR1 · 03-03-2020

I won't keep anything over 5-6 years old on my cars. Beyond that, and the grip/traction just drops off way too quickly. By 9-10 years old, even if the tire looks great, it will have probably 25% of the grip of a tire that is less than 5 years old (have experienced this multiple times).

The Shelby wheels I bought had PS2s that were 9-10 years old, and they were night and day difference to the 3-4 year old Goodyears that were on the wheels I took off.

Top Toy · 03-04-2020

I feel your pain Dom! I just threw away a set of brand new looking Michelin PS2's in unobtainium sizes that were on my '95 when I bought it. 15 years old. They actually gripped reasonably well but, like you, I'm not into taking any more chances.

Sent from my SM-G975U1 using ZR-1 Net Registry mobile app

XfireZ51 · 03-04-2020

Dennis,

Pete and I had the car up on his lift and we took a look at the tires. Frankly, there was no sign of dryrot. Rubber appeared “soft” and there is plenty of tread on the tire. U can see the wear bars w plenty of tread.

03-02-2020	#1
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,702	Opinions on tire replacement Quick question. Thoughts on whether to replace rear tires with good tread depth and Manuf. date of 4413? Would u run them another year? __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX

03-02-2020	#3
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Opinions on tire replacement Michelin says 10 years max. As long as they are inspected yearly. H https://www.michelinman.com/howLongTireLast.html __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.

03-02-2020	#5
Young1 Join Date: Sep 2016 Location: Ocala, FL Posts: 895	Re: Opinions on tire replacement No sudden moves or heavy power when cold. Take it easy. __________________ Steve Young 1991 ZR-1 Quasar Blue Metallic/Black #729 Second Owner 1991 ZR-1 Dark Red Metallic/Black #2040 SOLD 1990 ZR-1 Dark Red Metallic/Saddle #1670 SOLD Double your happiness.....complain half as much.

03-03-2020	#8
EvanZR1 Join Date: Nov 2010 Location: Omaha Posts: 403	Re: Opinions on tire replacement I won't keep anything over 5-6 years old on my cars. Beyond that, and the grip/traction just drops off way too quickly. By 9-10 years old, even if the tire looks great, it will have probably 25% of the grip of a tire that is less than 5 years old (have experienced this multiple times). The Shelby wheels I bought had PS2s that were 9-10 years old, and they were night and day difference to the 3-4 year old Goodyears that were on the wheels I took off. __________________ Evan 2024 Z06 SOLD - 1991 Admiral Blue ZR-1 SOLD - 2012 Carlisle Blue Metallic ZR1 - 800HP SOLD - Steel Blue 91 391cid ZR-1 #391 SOLD - Black 91 ZR-1

03-04-2020	#9
Top Toy Join Date: Jul 2012 Location: Allentown, PA Posts: 309	Re: Opinions on tire replacement I feel your pain Dom! I just threw away a set of brand new looking Michelin PS2's in unobtainium sizes that were on my '95 when I bought it. 15 years old. They actually gripped reasonably well but, like you, I'm not into taking any more chances. Sent from my SM-G975U1 using ZR-1 Net Registry mobile app __________________ '95 ZR-1, aqua/gray, #167 368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP.

03-04-2020	#10
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,702	Re: Opinions on tire replacement Dennis, Pete and I had the car up on his lift and we took a look at the tires. Frankly, there was no sign of dryrot. Rubber appeared “soft” and there is plenty of tread on the tire. U can see the wear bars w plenty of tread. __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX Last edited by XfireZ51; 03-08-2024 at 03:09 PM.