Lemming

Looks like Toyo has a new tire coming out. Wondering if this is a replacement or in addition to the RR?

https://www.toyotires.com/product/proxes-r/

jerome951

I heard rumors of this tire earlier in the year. Supposed to be faster (similar to a Hoosier) and last as long as the RR. Not sure if it will replace the RR but I'm curious to hear if it will be the new spec tire for our class since the 255/40-17 is one of the first sizes being produced.

tgsmith4845

According to discussions between PCA CR and Toyo, the R will be replacing the RR over the next year or so. The R is designed to outperform the RR - quicker and more consistent through the first 5-10 heat cycles - with similar longevity. As the Toyo website states, the R will be first available in April 2024, including the 255/40-17. Toyo has stated that they will have enough RRs available through 2024, and start crossing over from the RR to the R in the 2024-25 timeframe. I’d anticipate that the RR will continue to be the SPB spec tire for PCA Club Racing through 2024, with a shift to the R starting in 2025.

Nickshu

I wonder if more oiling issues will show up w/ the new grippier tires.

WillyDaP

Let's hope for more sizing , as they are especially weak for 19 inch wheels!

SomebodyDial911

The April 14, 2024 Rules Committee memo states that the Toyo R will be allowed starting June 1, 2024, but on the website, this seems to fall specifically within the ME1 Interim Rules Changes section, leading me to believe that it does NOT apply to SPB (even though the link on the prior page and in the following URL reads "General SPB"). Is this the correct interpretation?

https://pcaclubracing.org/rules/2024...s/#General-SPB

BFT3.2

I sort of read it at first as ME-1 only for right now but now im doubting myself. Curious too as Im ready for new rubber

Jared Rodeheaver

From Susan:

"Walt say: Unless the supply situation changes, the RR will be the SPB spec dry tire for the rest of 2024. While the 2025 tire will be announced with the rest of the 2025 rules changes in or around November/December, the new Toyo R seem the obvious choice for a replacement."

NASA also uses the RR and there a hundreds of tires at minimum in stock from both track day tire and tire rack....

BFT3.2

RR it is

KevinA

What happens if I shop local and support my local tire shop, and they can't get the RR's? Last time I ordered a set (Lime Rock) the shop said it was showing up in the computer as "discontinued."

If the rule is that not until 2025, they really need to clarify the published interim rule. As BFT3.2 notes, it is utterly confusing.

They have a heading "General SPB updates" and the text you are directed to says any time after June 1 the R can be used. This language is separate from the link and language about the SPB to ME1 conversion.

BFT3.2

Anyone breaking a 2:10.27 at the Glen gets there tires checked! Hell, check me if I actually break a 2:15..

trygve

The page layout and heading / subheading styles are not exactly providing clarity...
but as I read it, that last section, though accessible from a link labeled "General SPB Changes", to me clearly implies that it's talking about ME1, since the overlong paragraph heading refers to "any SPBs converted" and all the other items contained there are clearly about non-SPB class compliant cars (mentioning Boxster S, 6-speeds, 987.1's, etc.)

Jared Rodeheaver

I recommended they fix the website to be explicit but being PCA don't hold your breath. On another note I asked my tire supplier, trackdaytire.com and they thought there are enough RR's to last through 2025. Anyone not in a race series mandating RR's would choose R's since they are the same cost so that will make supply last longer too.

KevinA

Well, I don't know about anyone else, but I check the date codes on tires I get (from a local shop, not a national supplier), and I'd tell them no thanks to year(s) old tires.
I understand Toyo has already discontinued production. Who is going to buy 2023 or early 2024 date code tires in 2025?

Jared Rodeheaver

Per PCA we don't have a choice but not really a big deal. As long as they are stored properly that is well within range. We ran way older ones a couple weeks ago and performance was still equal to newer ones.