Potenza Re71r

[HuskyBMW]

Just purchased the Re71r for my track set up with next HPDE Sept. 15. How many miles should I put on these before taking to track for first time? I've read it can take almost 500 miles to get tires broke in and initial "grease" off the tires. Truth to that?

[TRZ06]

Originally Posted by HuskyBMW

Just purchased the Re71r for my track set up with next HPDE Sept. 15. How many miles should I put on these before taking to track for first time? I've read it can take almost 500 miles to get tires broke in and initial "grease" off the tires. Truth to that?

For mold release, I would say 200 miles or so.

HOWEVER...

For max stability they really come in after about 1,000 to 1,500 miles. Tread squirm is present below that mileage.

If you want to take them to the track before then, you might want to consider shaving them a little.

[SYT_Shadow]

Fortunately, a few laps tend to prepare the tires quite well for track use :P

[S65V8]

+1, nothing one session driven hard can't burn away.

[Powerslide]

You're going to love these tires on the track!!

[afadeev]

Originally Posted by SROC5

+1, nothing one session driven hard can't burn away.

Exactly.
To answer OP's question - no fixed number of street miles are required before you take RE71R's to a DE. Just be a touch more gentle pushing traction limits for the first session, which you will be anyway, and the tires will be ready by the time your brain and brake pads warm up.

a

[admranger]

Just drive them to the track. Done.

If mold release were a real concern, you wouldn't see racers putting "sticker tires" on and rolling to grid. Warm up lap takes care of those issues.

While Hoosier recommends this the strongest, there's nothing wrong with heat cycling the tires prior to the event. Get them hot and then get them up in the air (jack stands, lift, or take them off the car) and then let them sit for 24 hours prior to use. Supposedly this gets the final cross linking done and provides a longer lasting tire that can take more heat cycles. YMMV.

[CanAutM3]

500miles of street driving or a couple of laps around the track .

[CanAutM3]

Originally Posted by TRZ06

For mold release, I would say 200 miles or so.

HOWEVER...

For max stability they really come in after about 1,000 to 1,500 miles. Tread squirm is present below that mileage.

If you want to take them to the track before then, you might want to consider shaving them a little.

This is the track section. When used at the track, tires need much less milage to become optimal. 1500miles is about the distance I get out of my track tires before they show cords .

[TRZ06]

Originally Posted by CanAutM3

This is the track section. When used at the track, tires need much less milage to become optimal. 1500miles is about the distance I get out of my track tires before they show cords .

Good point. I have no track experience, those are my observations on the street.

[Gearhead999s]

I got 2 days of track use(3.5 hours) out of RE71R's before they were done.Fast tire & easy to drive at the limit.They need a lot more camber than the Yokohama AD08R's that I have used before which I will address before I use them again.

[kitesurfer]

Originally Posted by Gearhead999s

I got 2 days of track use(3.5 hours) out of RE71R's before they were done.Fast tire & easy to drive at the limit.They need a lot more camber than the Yokohama AD08R's that I have used before which I will address before I use them again.

Wow that shocking how quick they wear thats faster than NT01's. How many days are were you seeing out of the AD08R's?

[Gearhead999s]

Originally Posted by kitesurfer

Wow that shocking how quick they wear thats faster than NT01's. How many days are were you seeing out of the AD08R's?

Last year I used one set for 7 days on an event that had 17 stages and still had 50% left but they heat cycled out after 3 days.My other set of AD08's have not heat cycled out yet with about 4 days on them and also have about 15000 kms of street driving on them but I have not overheated them like my other set at Calabogie.But do realize the RE71R is a faster tire than the AD08R but at the expense of durability.

[kitesurfer]

I still think the RS3 strikes a good balance of Durability/Fast.

[redpriest]

Through heroic effort, I managed to get about 6 days out of a set of RE-71Rs on my E92 M3 - but that required aggressive tire rotation, tire flipping, etc, and -2.5 deg of camber.

[JMN]

What kind of pressures are you guys running at track on these?

[Gearhead999s]

Originally Posted by JMN

What kind of pressures are you guys running at track on these?

38 hot.I had these on my 19 x 10 & 11's.

[lutfy]

Originally Posted by Gearhead999s

Last year I used one set for 7 days on an event that had 17 stages and still had 50% left but they heat cycled out after 3 days.My other set of AD08's have not heat cycled out yet with about 4 days on them and also have about 15000 kms of street driving on them but I have not overheated them like my other set at Calabogie.But do realize the RE71R is a faster tire than the AD08R but at the expense of durability.

Very strange. While I drove four days in track and used it for street driving (AD08R), with circa 7k miles (granted I drove in the winter including a 19deg F day) come spring this year I was sliding on track as these tires were cycled out like nothing I have ever experienced! Unsure if it was the winter?

Re is MUCH quicker but yes it does wear faster. I had a student had Costco replace a set under warranty...

Cheers,

Lutfy

[evanevery]

I've burned up a set of Conti's in 2 days at the track and a set of PSC2's in 4 days...

Camber, Camber, Camber!

If you don't want to be burning up your track tires prematurely, you might want to consider running at least -2.5 camber on the fronts... The outside shoulders on the fronts will be your achilles heel...

You can also run a little higher pressures to help save the shoulders but your grip will suffer...

You can also run tires that are NOT directional so you can move the tires side-to-side to balance wear without having to dismount them to flip them.... (Micheline Pilot Sport Cup 2's are NOT directional).

You can also run a square setup AND non-directional tires which will REALLY help you optimize and balance wear. You can move any wheel to any corner at any time with this type of a setup: http://f80.bimmerpost.com/forums/sho....php?t=1289179

Are the RE-71's directional?

[Gearhead999s]

Originally Posted by lutfy

Very strange. While I drove four days in track and used it for street driving (AD08R), with circa 7k miles (granted I drove in the winter including a 19deg F day) come spring this year I was sliding on track as these tires were cycled out like nothing I have ever experienced! Unsure if it was the winter?

Re is MUCH quicker but yes it does wear faster. I had a student had Costco replace a set under warranty...

Cheers,

Lutfy

Yokohama tells you not to store or use these tires in freezing conditions so that is probably what caused your issue.Mine are stored in heated area indoors during our 5 months of winter.My other set heat cycled out due to being overheated during a time attack event.

[lutfy]

Originally Posted by Gearhead999s

Yokohama tells you not to store or use these tires in freezing conditions so that is probably what caused your issue.Mine are stored in heated area indoors during our 5 months of winter.My other set heat cycled out due to being overheated during a time attack event.

Ah gotcha. So the performance hasn't worn off with mixed street/track driving over time? So they are cycling well? In this case extreme cold killed my tires.

I loved these in the rain on the e90 last year (pre winter) and only found them marginally slower than ra1s.

Using these as rain tires on the IP race car (stored and well taken care of in winter).

Cheers,

Lutfy

[Gearhead999s]

Originally Posted by lutfy

Ah gotcha. So the performance hasn't worn off with mixed street/track driving over time? So they are cycling well? In this case extreme cold killed my tires.

I loved these in the rain on the e90 last year (pre winter) and only found them marginally slower than ra1s.

Using these as rain tires on the IP race car (stored and well taken care of in winter).

Cheers,

Lutfy

From the Yokohama site

Like the motorsports tires this Extreme Performance Summer street tire has evolved from, the ADVAN Neova AD08 R radial's construction and compounds have been tuned to maximize the tire's traction and performance within a specific range of ambient temperatures. Therefore, unlike less highly-tuned tires, Yokohama's care instructions specify that due to its compound characteristics, ADVAN Neova AD08 R tires must be serviced, stored and driven at temperatures above -10 degrees Celsius (14 degrees Fahrenheit) to maintain its performance and avoid tire damage.