G3 Supercar compared to the G2? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

51LE50 · 10-23-2017, 08:59 PM

Hi Rudy, I saw a fellow member with a Gen 5 1LE was running (and liked) the new G3 version of the Goodyear Supercars. The Tire Rack website shows the 285-30-20 G3 is taller than the 285-35-20 G2. It also has a lesser load rating.
I've not been able to verify any of this on the Goodyear website, but have no reason to doubt what I see on Tire Rack's website.

My questions are;

1. How can a smaller 30 series/ratio tire be larger in diameter than a 35 when their tread width is the same?

and,

2. The load rating on the G3 looks suitable for a Gen 5 1LE. Is it?

It's almost time for new tires,
Thank you

PROZ11 · 10-25-2017, 12:20 PM

Something it not right. The 285/30/20 would be shorter by just over an inch in diameter compared to a 285/35/20, not taller.

.

h018871 · 10-25-2017, 01:53 PM

PROZ11 is correct, they compute to be ~ 1 inch shorter diameter
https://www.tacomaworld.com/tirecalc...0r20-285-35r20

51LE50 · 10-25-2017, 10:20 PM

https://www.tirerack.com/tires/tires...F1S3&tab=Sizes

G3 shows 28.8 inch diameter and shows tread width to be ,7 inches wider.

https://www.tirerack.com/tires/tires...2LV2&tab=Sizes

G2 shows 27.9 inch diameter.
This does not make sense to me.
I've tried to get info from Goodyear's website, but that is a very poorly designed website. One of the worst I've seen.

10-23-2017, 08:59 PM	#1
51LE50 Drives: 2015 1LE, 2SS, Bright Yellow Join Date: Mar 2016 Location: Big Ditch, CA. The 805 Posts: 132	G3 Supercar compared to the G2? Hi Rudy, I saw a fellow member with a Gen 5 1LE was running (and liked) the new G3 version of the Goodyear Supercars. The Tire Rack website shows the 285-30-20 G3 is taller than the 285-35-20 G2. It also has a lesser load rating. I've not been able to verify any of this on the Goodyear website, but have no reason to doubt what I see on Tire Rack's website. My questions are; 1. How can a smaller 30 series/ratio tire be larger in diameter than a 35 when their tread width is the same? and, 2. The load rating on the G3 looks suitable for a Gen 5 1LE. Is it? It's almost time for new tires, Thank you

10-25-2017, 12:20 PM	#2
PROZ11 Drives: 2012 RS/2SS, 69 ProStreet Camaro Join Date: Oct 2011 Location: North NJ Posts: 478	Something it not right. The 285/30/20 would be shorter by just over an inch in diameter compared to a 285/35/20, not taller. . __________________

10-25-2017, 01:53 PM	#3
h018871 Geoff Drives: 2020 ZL1 Green Join Date: May 2013 Location: Houston Posts: 1,720	PROZ11 is correct, they compute to be ~ 1 inch shorter diameter https://www.tacomaworld.com/tirecalc...0r20-285-35r20 __________________ Having a Blast https://www.camaro6.com/forums/showt...php?p=10741733

10-25-2017, 10:20 PM	#4
51LE50 Drives: 2015 1LE, 2SS, Bright Yellow Join Date: Mar 2016 Location: Big Ditch, CA. The 805 Posts: 132	Yes, and that is my point. https://www.tirerack.com/tires/tires...F1S3&tab=Sizes G3 shows 28.8 inch diameter and shows tread width to be ,7 inches wider. https://www.tirerack.com/tires/tires...2LV2&tab=Sizes G2 shows 27.9 inch diameter. This does not make sense to me. I've tried to get info from Goodyear's website, but that is a very poorly designed website. One of the worst I've seen.