Let's Talk Track Tires - 2024 Edition
#46
What are the current go-to tires for stock 20" wheels for AX? I used to like the RE71R but there are no RE71RS in stock size. Currently I am on a set of Cup 2s but our PNW climate is too cold for them except in July/August and maybe September. Some people run Nankang CRS, though they are not 100% stock size. How are the AD09s compared to the A052s? Or the SCR3?
A052 are better for Ax. I’m pretty sure they were specifically designed for it due to their rapid heat up.
AD09 is slower but handles heat better without dropping off.
Last edited by Reedy; 01-22-2024 at 04:29 PM.
#47
I wonder if those drivers are running too high of pressures? RE71R liked lower pressure, like 30-32 hot. Can't run them like Michelins at 34-36.
I just got the new RE71RS and have a track day in a few weeks, but I'm not an instructor level driver. Full set was $1400-something in 19".
I just got the new RE71RS and have a track day in a few weeks, but I'm not an instructor level driver. Full set was $1400-something in 19".
If you wouldn't mind reporting back after your track event with them, I'd appreciate the feedback!
Last edited by beez; 01-22-2024 at 04:55 PM.
#48
Unfortunately, the CS-doesn't come in the sizes I need, and I live in Las Vegas and run at Spring Mountain, but also Big Willow, Thunderhill, Buttonwillow, Laguna, Sonoma, etc., so not sure the Bridgestones will like the heat. That's pretty much why I'm going to try the AD09s first, and see how they do. I'm using SC2s now, so obviously I'm not looking for the ultimate lap time. I think the other manufacturers have made strides the last few years in their compounds, while Michelin hasn't commensurately updated the SC2 compounds since they came out in 2014/2015. So hoping the AD09s are stickier.
#49
What are the current go-to tires for stock 20" wheels for AX? I used to like the RE71R but there are no RE71RS in stock size. Currently I am on a set of Cup 2s but our PNW climate is too cold for them except in July/August and maybe September. Some people run Nankang CRS, though they are not 100% stock size. How are the AD09s compared to the A052s? Or the SCR3?
The following users liked this post:
Mike981S (01-22-2024)
#50
that could be, but I don't know what pressures they were running, just noticed the relatively expensive carnage. I'm a pro instructor/racing coach, so that's my concern with the Bridgestones.
If you wouldn't mind reporting back after your track event with them, I'd appreciate the feedback!
If you wouldn't mind reporting back after your track event with them, I'd appreciate the feedback!
My last set of RE-71RS I got 4 weekends/~35 sessions out of them (usually 20 min).
My current set I have 2 weekends/20 sessions at a pretty abrasive track and the tires still look pretty healthy.
I try to target a hot pressure of 32.
#51
I’ve been very happy with the AD09’s. They wiped the floor with my Cup 2 lap time and are more durable, also quite a bit cheaper.
I’ve posted this before but since it’s a new thread for a new year I’ll re link my comparison that I made when I first tried them.
My longer term review is much the same. However one criticism that I have is that when they start to wear, they tend to develop a lot of high speed vibration that the Michelins don’t seem to suffer. 260kph at Bathurst brought it out in them pretty quickly.
I want to try A052 next for a speed comparison but there is plenty of data to know they are a faster tyre over a single lap, but then tend to overheat.
For track days or racing the AD09 is the one to have
For AX, time attack or tarmac rallies the A052 is the better option
I’ve posted this before but since it’s a new thread for a new year I’ll re link my comparison that I made when I first tried them.
My longer term review is much the same. However one criticism that I have is that when they start to wear, they tend to develop a lot of high speed vibration that the Michelins don’t seem to suffer. 260kph at Bathurst brought it out in them pretty quickly.
I want to try A052 next for a speed comparison but there is plenty of data to know they are a faster tyre over a single lap, but then tend to overheat.
For track days or racing the AD09 is the one to have
For AX, time attack or tarmac rallies the A052 is the better option
#52
As an advanced/instructor driver I've been happy with the RE71RS. That's after using the Goodyear Supercar 3 which I loved for longevity.
My last set of RE-71RS I got 4 weekends/~35 sessions out of them (usually 20 min).
My current set I have 2 weekends/20 sessions at a pretty abrasive track and the tires still look pretty healthy.
I try to target a hot pressure of 32.
My last set of RE-71RS I got 4 weekends/~35 sessions out of them (usually 20 min).
My current set I have 2 weekends/20 sessions at a pretty abrasive track and the tires still look pretty healthy.
I try to target a hot pressure of 32.
What tracks have you used them on, and what are the ambient temps like?
I’ve been very happy with the AD09’s. They wiped the floor with my Cup 2 lap time and are more durable, also quite a bit cheaper.
I’ve posted this before but since it’s a new thread for a new year I’ll re link my comparison that I made when I first tried them.
My longer term review is much the same. However one criticism that I have is that when they start to wear, they tend to develop a lot of high speed vibration that the Michelins don’t seem to suffer. 260kph at Bathurst brought it out in them pretty quickly.
I want to try A052 next for a speed comparison but there is plenty of data to know they are a faster tyre over a single lap, but then tend to overheat.
For track days or racing the AD09 is the one to have
For AX, time attack or tarmac rallies the A052 is the better option
I’ve posted this before but since it’s a new thread for a new year I’ll re link my comparison that I made when I first tried them.
My longer term review is much the same. However one criticism that I have is that when they start to wear, they tend to develop a lot of high speed vibration that the Michelins don’t seem to suffer. 260kph at Bathurst brought it out in them pretty quickly.
I want to try A052 next for a speed comparison but there is plenty of data to know they are a faster tyre over a single lap, but then tend to overheat.
For track days or racing the AD09 is the one to have
For AX, time attack or tarmac rallies the A052 is the better option
Last edited by beez; 01-22-2024 at 08:15 PM.
#53
People report the same thing with AR-1's as well and the workshop that does track support for some of us believes its tread pattern related in both cases.
#54
I've seen so many advanced and instructor group drivers tear them (the previous gen) up on the track in a day or two. Great for AX, but not for track use. I want to try the new ones, but hoping they'll handle heat better and last longer. I'm going to try the AD09s first though. I've been using SC2s - they handle the heat well, are pretty stout, and are reasonable fast, but the 295/35-19 rears that I use just broke the $500 mark, and that's a ridiculous price for one tire, and they're just not that good to command such a price.
#55
The RE71RSs are putting down very very good times at my track, on par with SC3R for the GT4, like 1.5s/min faster than I've seen with Cup2. It's not a big track and doesn't have super high friction, so this will matter, but I will say that they appear to be handling heat much better than did the RE71R. Guys are running hard for 10+ laps on them.
#56
71RS benefits, really needs a true heat cycle, with 24 hour rest cycle. They are prone to tearing up the center rib especially if over driven when new. I had over 25 HC on my last pair. 2023 1Lap 3500 miles and Sebring twice, Road Atlanta TT, Roebling and The Firm. The only time they were really unhappy was Sebring in July and mid 90 degree weather.
Peter
Peter
The following users liked this post:
enduro (01-22-2024)
#57
I’ve been very happy with the AD09’s. They wiped the floor with my Cup 2 lap time and are more durable, also quite a bit cheaper.
I’ve posted this before but since it’s a new thread for a new year I’ll re link my comparison that I made when I first tried them.
https://youtu.be/F20t85mlKHo?si=POdIvCbVGJ-ScyNw
My longer term review is much the same. However one criticism that I have is that when they start to wear, they tend to develop a lot of high speed vibration that the Michelins don’t seem to suffer. 260kph at Bathurst brought it out in them pretty quickly.
I want to try A052 next for a speed comparison but there is plenty of data to know they are a faster tyre over a single lap, but then tend to overheat.
For track days or racing the AD09 is the one to have
For AX, time attack or tarmac rallies the A052 is the better option
I’ve posted this before but since it’s a new thread for a new year I’ll re link my comparison that I made when I first tried them.
https://youtu.be/F20t85mlKHo?si=POdIvCbVGJ-ScyNw
My longer term review is much the same. However one criticism that I have is that when they start to wear, they tend to develop a lot of high speed vibration that the Michelins don’t seem to suffer. 260kph at Bathurst brought it out in them pretty quickly.
I want to try A052 next for a speed comparison but there is plenty of data to know they are a faster tyre over a single lap, but then tend to overheat.
For track days or racing the AD09 is the one to have
For AX, time attack or tarmac rallies the A052 is the better option
Last edited by ExMB; 01-22-2024 at 08:20 PM.
#58
I think it is yea, the wavy grooves collect pickup unevenly, perhaps some resonance in the tyre construction at certain speeds. They have quite a low speed rating for this type of tyre as well. I haven't tried having them re balanced either, that might help.
People report the same thing with AR-1's as well and the workshop that does track support for some of us believes its tread pattern related in both cases.
People report the same thing with AR-1's as well and the workshop that does track support for some of us believes its tread pattern related in both cases.
#59
The RE71RSs are putting down very very good times at my track, on par with SC3R for the GT4, like 1.5s/min faster than I've seen with Cup2. It's not a big track and doesn't have super high friction, so this will matter, but I will say that they appear to be handling heat much better than did the RE71R. Guys are running hard for 10+ laps on them.
71RS benefits, really needs a true heat cycle, with 24 hour rest cycle. They are prone to tearing up the center rib especially if over driven when new. I had over 25 HC on my last pair. 2023 1Lap 3500 miles and Sebring twice, Road Atlanta TT, Roebling and The Firm. The only time they were really unhappy was Sebring in July and mid 90 degree weather.
Peter
Peter
#60
Pressure growth behaviour is mostly the same as the Cup 2's. They do slightly better with lower starting pressures than the Cup2's do so you can start with them a bit lower. As long as you're prepared to deal with TPMS warnings.
Last edited by Reedy; 01-22-2024 at 08:25 PM.