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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 04-26-2022, 08:18 AM   #1
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New 200 TW Bridgestone Tire

Was on Tirerack and noticed a new 200 TW Bridgestone tire (RE-71RS) has anyone tried these out or did they just appear on the site recently?



https://www.tirerack.com/tires/tires...omCompare1=yes
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Old 04-26-2022, 08:30 AM   #2
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That's a replacement for the RE-71R that Bridgestone stopped offering a while ago - https://grassrootsmotorsports.com/ne...s-coming-soon/
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Old 04-26-2022, 10:11 AM   #3
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Interesting that no sooner does Falken clone the RE71R’s tread pattern for the hot RT660 Bridgestone moves to a pattern similar to the A052 on the new RS. Seeking better wet performance perhaps?
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Old 04-27-2022, 12:11 AM   #4
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Odd tread pattern. Seems they are seeking A052 prices as well, yikes!
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Old 04-27-2022, 07:08 AM   #5
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These are brand new, as in no one has taken delivery of them yet. We'll see how they do at autox in a few months, but I'd be surprised if they're faster than the A052. Bridgestone wasn't initially going to bring them because they didn't think they could beat the Yoks, but maybe they updated the compound for the American market. I don't think they need to match the Yoks to be a popular choice though, just last longer than them and be a little faster than the RT660.
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Old 04-27-2022, 09:36 AM   #6
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For autocross, these are going to fall somewhere in no-man's land. If you want pure grip, high cost, and high wear, you're going to go with Yoks if they work for your setup (usually higher camber, lighter cars). For everyone else, the Falkens fit the bill and give you 95% of the grip the Yok does, much cheaper cost, and slightly better wear. Yoks better in the cooler temps, Falkens better in the higher.

The 71RS is as expensive as the Yoks, likely won't beat the outright raw grip, may have slightly better wear, and I'd expect them to heat cycle out much sooner if they're anything like the old 71R. Whereas the huge benefit of the Yoks was they didn't fall off with heat cycles much at all - 71R's were done in like 100-125 runs, even with 40%+ tread still left.

I just don't see them being useful for any application with the two other options out there. But who knows, maybe they'll show their worth.
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Old 04-27-2022, 01:10 PM   #7
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Quote:
Originally Posted by cmiovino View Post
high wear, you're going to go with Yoks

huge benefit of the Yoks was they didn't fall off with heat cycles much at all

- 71R's were done in like 100-125 runs,
Are people getting more than that with the Yoks?

Quote:
RE-71RS having a new improved asymmetric tread design to improve the
cornering contact area, and a new compound for better grip and longer tread life.

All this work makes the RE71RS 0.6 seconds a lap faster around the famous Tsukuba Circuit in Japan.
https://www.tire-reviews.com/Article...th-America.htm
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Old 04-27-2022, 04:57 PM   #8
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Quote:
Originally Posted by racingfool View Post
Are people getting more than that with the Yoks?

I ran them all last year and they had a good 150+ competitive runs in them. DS with ~1.3 degrees camber up front at that. Ran them out to 200 runs total. Even towards the end, they were still decently quick and driveable.

I had two sets of REs prior and they certainly "fell off" well before 150. Probably 100 to be honest. I really hated that about them.

All sets were not daily drive, just to and from events.
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Old 04-29-2022, 11:21 AM   #9
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I dont know what you all people are smoking. These will be faster than the Yoks, they are considerably faster than the old RE71R which was just a hair behind the A052s. They will wear even faster. Do you guys read the descriptions or look at the numbers or you just go write a "wishlist" of what you think the tire should be?
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Old 04-29-2022, 05:10 PM   #10
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Regarding pricing, in 235/40/18

V730 is $172
RT660 is $217
RE71RS is $251
A052 is $288

The re71rs is definitely less than the a052, and michelin, but more than kumho, falkens

Really hoping it lasts longer than the old re71r since I just purchased the re71rs for my newbie son to autox in DS.
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Old 04-29-2022, 07:34 PM   #11
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Quote:
Originally Posted by Balefire View Post
Regarding pricing, in 235/40/18

V730 is $172
RT660 is $217
RE71RS is $251
A052 is $288

The re71rs is definitely less than the a052, and michelin, but more than kumho, falkens
In that one size, yes. But size matters.

In my size, 255/40R17 the re71RS is almost the same as A052 on price.
To use your examples:
V730 $178
RT660 $200
RE71RS $252
A052 $257

To the gentleman that thinks they will be faster than Yoks.... I think you are the one smoking and not reading the data that is already available.
They are marginally faster then the old RE's. Is it enough to make up the difference to catch the yoks? Maybe. To be enough faster to matter? Not likely. The old RE's (which I love) were well more then a 'hair' behind the A052. There is a reason very few people who wished to be competitive in autocross ran RE's if their car could make use of the A052.
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Old 04-30-2022, 01:40 AM   #12
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https://m.tirerack.com/tires/tests/t...2250417&em_lid
Compared to RE71R, the RE71RS is
Faster in dry autox
Faster in wet autox
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Old 04-30-2022, 04:17 AM   #13
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Quote:
Originally Posted by Balefire View Post
Compared to RE71R, the RE71RS is
Faster in dry autox
Faster in wet autox
.3 seconds faster on a 30 second autocross

Quote:
The new tire focuses more on track use than autocross competition,
with specific emphasis placed on dry traction, consistency over multiple laps, and wear.

less precise and didn't offer the feedback of its predecessor.
The lack of feedback meant it was harder to
read and didn't communicate its limits quite as well

our drivers universally preferred the old
Potenza RE-71R for subjective characteristics

...rear axle behavior through the slalom. When dealing with
the more-abrupt lateral transitions through that element,
there was very perceptible movement at the back of the vehicle.
Adding to the equation, the front end grip couldn't match the dominance
of the rear, which created a strong tendency to understeer at corner exit

if someone isn't happy with the way the new tire feels, they're almost
certain to forgive that shortcoming when they see their improved lap times
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Old 04-30-2022, 07:00 PM   #14
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Quote:
Originally Posted by Breezio View Post
In that one size, yes. But size matters.

In my size, 255/40R17 the re71RS is almost the same as A052 on price.
To use your examples:
V730 $178
RT660 $200
RE71RS $252
A052 $257

To the gentleman that thinks they will be faster than Yoks.... I think you are the one smoking and not reading the data that is already available.
They are marginally faster then the old RE's. Is it enough to make up the difference to catch the yoks? Maybe. To be enough faster to matter? Not likely. The old RE's (which I love) were well more then a 'hair' behind the A052. There is a reason very few people who wished to be competitive in autocross ran RE's if their car could make use of the A052.
In autox where setups make little to no sense (class restrictions) the yoks work better. They like a lot of camber but work well regardless. On a properly setup car on track (meaning setup is optimized for each tire, not one size fits all), the yoks are marginally better than the re71r on the first lap.

I guess everyone here is just talking about street classes on autox with very limited setups.
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