Exciting new tire option

[SpeedyGee]

I wonder if the 275/40/20's will fit on the front without rubbing. Is it 30 days before we will get the spec's as well?

[JMatt]

Originally Posted by SpeedyGee

I wonder if the 275/40/20's will fit on the front without rubbing. Is it 30 days before we will get the spec's as well?

I doubt they'll fit on the front, but why would you want to? The Toyo Proxes fit no the front, but although those are labelled "275" they're not any wider than the Goodyear 255's. The INVO is also available in a 245 - which is the same as our stock size on the front.

[330toSRT8]

Originally Posted by JMatt

The INVO is also available in a 245 - which is the same as our stock size on the front.

Not according to their website. Here's what they have in 20s:
245/35ZR20
255/45ZR20
255/35ZR20

But I'm sure the 255/45ZR20 would fit fine in the front.

[JMatt]

Originally Posted by 330toSRT8

Not according to their website. Here's what they have in 20s:
245/35ZR20
255/45ZR20
255/35ZR20

But I'm sure the 255/45ZR20 would fit fine in the front.

My bad - you're right. It's the 255 for the front, and the soon to be available 275 for the rear.

(LATE EDIT: the 245 WILL be available soon. see below)

[Y2K5SRT]

Well, it appears that Discount Tire sells this tire. although these sizes aren't mentioned on their site yet:

Tire Sizes - Discount Tire Direct

Also interesting that they say that it is "Z" rated across the entire INVO model line. I only have 4700 miles on my F1's, but they are definitely not up to snuff (read the "vibration at 80 mph" thread for actual graphics). Very interested in these! Now if they made them for the Viper, oh how sweet it would be...




.

[vvv90]

I so can't wait for these.

To show you how much anticipation I've had, just last night I had a dream JMatt showed up to my house to show off his new iNVO's that only HE had the privilege of getting, and to make fun of my bald tires.....Ok, it was more of a nightmare....JMatt, you looked about 140lbs soaking wet with jet black hair, red eyes, and horns. Is that what you really look like?

[JMatt]

Here's what's coming:

NITTO INVO
245 45R20: 9.65" wide, 28.66" diameter, 725 revs per mile, 31.3 pounds
255 45R20: 10.12" wide, 29.02" diameter, 716 revs per mile, 31.97 pounds
275 40R20: 10.94" wide, 28.62" diameter, 726 revs per mile, 33.5 pounds

I'm still working on exact availability dates. Soon though......

Some comparisons:

Eagle F-1
245 45R20: 9.6" wide, 28.7" diameter, 729 revs per mile, 29 pounds (stock front tire)
255 45R20: 10.0" wide, 29.1" diameter, 719 revs per mile, 34 pounds (stock rear tire)

Toyo Proxes 4
245 45R20: 9.6" wide, 28.7" diameter, 724 revs per mile, 31 pounds
255 45R20: 10.1" wide, 29.1" diameter, 715 revs per mile, 32 pounds
275 40R20: 9.9" wide, 28.7" diameter, 725 revs per mile, 33 pounds


The only curious measurement is the width of the Toyo 275. However, a real life comparison review someone did seems to back up that number, so I don't know why it's labelled 275, yet seems no wider than a 255.

[330toSRT8]

Is it possible the Nitto widths are not tread widths but actually width at the widest point i.e. the bulge? The Goodyear page specifically says tread width, but Toyo and Nitto don't specify.

[vvv90]

I can only assume that the "275" measurement on tires is from shoulder edge to shoulder edge and not a measurement of the actual contact patch.

I dunno, just a guess. Either way, it's misleading.

[JMatt]

Originally Posted by 330toSRT8

Is it possible the Nitto widths are not tread widths but actually width at the widest point i.e. the bulge? The Goodyear page specifically says tread width, but Toyo and Nitto don't specify.

All of the widths are section widths. I.E - the bulge. For example, the Goodyear Eagle F-1 Supercar in 255 45R20 is listed by Goodyear with a 10.0" section width, but only a 8.5" treadwidth. You can't readily find all treadwidths, but you you can get section widths. I posted the comparable numbers for all tires.