Weird crack on BFG Rival tread - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

jeebus · 12-21-2013, 05:22 PM

I was rotating my tires today and found a strange fault-line-looking crack that goes across the tread on two of my tires. The driver's front tire and the passenger rear tire. I'm not sure I've ever seen such a thing before. And no, there's nothing in the wheel well they could be hitting, nor do I tend to drive on razor blades.

I guess what scares me most, is both cracks looks remarkably similar.

infinite012 · 12-21-2013, 06:46 PM

Looks like a call/email to BFGoodrich is in order.

samisons · 12-21-2013, 07:10 PM

^ what that man said.

kALMIGHTY · 12-21-2013, 07:14 PM

Looks like a bad batch of tires. Manufacturing defects like that warrant replacements under warranty.

xwd · 12-21-2013, 11:23 PM

It's sometimes called "tread splice." It's a fairly common occurrence with the Rivals and it's purely cosmetic. It won't really develop any further and doesn't affect the performance or longevity of the tires. BFG is aware of it, it came up when they were first released, and at this point they won't replace tires because of it.

Joe-G · 12-22-2013, 01:14 AM

The Federal 595 RS-R tires have that problem as well. They are "cheaper" tires, and a quick google search will reveal results. Not sure if Federal was replacing them or not.

Sterling Doc · 12-22-2013, 01:46 AM

Quote:

Originally Posted by Joe-G

The Federal 595 RS-R tires have that problem as well. They are "cheaper" tires, and a quick google search will reveal results. Not sure if Federal was replacing them or not.

We saw this on many early Toyo RR's as well. Toyo put out a TSB with mountig direction specific to the axle and drive to help reduce shearing forces on the tread splice. It helped. I'm not sure if the same thing would work on Rival, but here is Toyo's TSB: http://www.frisbyracetire.com/images/TSD-12-023%20-%20RR%20DOT%20Mounting%20Orientation%20Recommendat ion.jpg

Here is an explanation of what is happening: http://www.tirerack.com/tires/tirete...jsp?techid=160

whataboutbob · 12-22-2013, 01:47 AM

Never seen a Dunlop Z2 do that in the 2 sets I've owned.

jeebus · 12-22-2013, 02:05 PM

Quote:

Originally Posted by dwx

It's sometimes called "tread splice." It's a fairly common occurrence with the Rivals and it's purely cosmetic. It won't really develop any further and doesn't affect the performance or longevity of the tires. BFG is aware of it, it came up when they were first released, and at this point they won't replace tires because of it.

sweet, thanks! I searched the web and found a few posts about it but no clarification. I emailed tirerack yesterday as well but they haven't replied yet.

RehabJeff86 · 12-23-2013, 12:02 AM

Quote:

Originally Posted by jeebus

sweet, thanks! I searched the web and found a few posts about it but no clarification. I emailed tirerack yesterday as well but they haven't replied yet.

Keep us posted wut TireRack says, im running Rivals too and do see the same cracks

Sent from my iPhone using TapatalkfQ

brn12345 · 12-26-2013, 02:43 AM

Guys this is not normal and is not safe for sure. I circuit race a Honda and have had this issue with my Kumho XS tires. It starts of as a line like the picture above but without warning the whole tire delaminates. I am talking about fender, suspension, brake damage let alone if you hit something. I am running Rivals too on my BRZ and this photo you posted brings back horrific memories. Ill be checking my tires today and if I see a line I am changing to Advans AD08R in a heartbeat.

xwd · 12-26-2013, 01:49 PM

Quote:

Originally Posted by brn12345

Guys this is not normal and is not safe for sure. I circuit race a Honda and have had this issue with my Kumho XS tires. It starts of as a line like the picture above but without warning the whole tire delaminates. I am talking about fender, suspension, brake damage let alone if you hit something. I am running Rivals too on my BRZ and this photo you posted brings back horrific memories. Ill be checking my tires today and if I see a line I am changing to Advans AD08R in a heartbeat.

This is not the same thing. Plenty of people have raced these until they were almost to the cords after the cracks showed up initially.

I can't seem to find the post anymore but Pete Calhoun who is the motorsports director at BFG (and a long-time autocrosser/road-racer) worked with the BFG engineers and Tirerack and found it was a non-issue. This will not lead to delaminating...

jeebus · 12-30-2013, 03:26 PM

Tirerack says a-ok, and sent me this bulletin.

sirwiggles · 12-30-2013, 03:49 PM

The guy I work with used to design tires for firestone said its called an open splice. Sombody didn't or forgot to put on some type of adhesive on it. They shouldn't come apart.

12-21-2013, 05:22 PM	#1
jeebus Senior Member Join Date: Jul 2012 Drives: 2015 Mustang GT (on order) Location: San Diego Posts: 904 Thanks: 114 Thanked 471 Times in 208 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Weird crack on BFG Rival tread I was rotating my tires today and found a strange fault-line-looking crack that goes across the tread on two of my tires. The driver's front tire and the passenger rear tire. I'm not sure I've ever seen such a thing before. And no, there's nothing in the wheel well they could be hitting, nor do I tend to drive on razor blades. I guess what scares me most, is both cracks looks remarkably similar. Attached Images __________________

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12-21-2013, 06:46 PM	#2
infinite012 Banned Join Date: Jan 2013 Drives: 13 DGM BRZ Ltd Location: Williamsburg, VA Posts: 974 Thanks: 294 Thanked 470 Times in 255 Posts Mentioned: 17 Post(s) Tagged: 4 Thread(s)	Looks like a call/email to BFGoodrich is in order.

12-21-2013, 07:10 PM	#3
samisons Senior Member Join Date: Aug 2013 Drives: 2013 Raven Fr-s, 2013 Versa Sedan Location: Marietta, GA Posts: 167 Thanks: 128 Thanked 42 Times in 25 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	^ what that man said.

12-21-2013, 07:14 PM	#4
kALMIGHTY Banned Join Date: Nov 2012 Drives: TRD Ultramarine '13 Location: Calgary Posts: 1,377 Thanks: 190 Thanked 766 Times in 347 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	Looks like a bad batch of tires. Manufacturing defects like that warrant replacements under warranty.

12-21-2013, 11:23 PM	#5
xwd Senior Member Join Date: Feb 2012 Drives: 2013 DGM Subaru BRZ (Subie #9) Location: ATL, US Posts: 2,667 Thanks: 123 Thanked 861 Times in 552 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	It's sometimes called "tread splice." It's a fairly common occurrence with the Rivals and it's purely cosmetic. It won't really develop any further and doesn't affect the performance or longevity of the tires. BFG is aware of it, it came up when they were first released, and at this point they won't replace tires because of it.

12-22-2013, 01:14 AM	#6
Joe-G Canada Eh! Join Date: Nov 2013 Drives: '13 FRS Location: Calgary, AB Posts: 447 Thanks: 156 Thanked 231 Times in 120 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	The Federal 595 RS-R tires have that problem as well. They are "cheaper" tires, and a quick google search will reveal results. Not sure if Federal was replacing them or not.

12-26-2013, 02:43 AM	#11
brn12345 Senior Member Join Date: Oct 2012 Drives: BRZ Location: Bahrain Posts: 254 Thanks: 101 Thanked 137 Times in 63 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Guys this is not normal and is not safe for sure. I circuit race a Honda and have had this issue with my Kumho XS tires. It starts of as a line like the picture above but without warning the whole tire delaminates. I am talking about fender, suspension, brake damage let alone if you hit something. I am running Rivals too on my BRZ and this photo you posted brings back horrific memories. Ill be checking my tires today and if I see a line I am changing to Advans AD08R in a heartbeat.

12-30-2013, 03:49 PM	#14
sirwiggles Member Join Date: Dec 2013 Drives: 2014 FR-S Location: Charlotte Posts: 80 Thanks: 29 Thanked 42 Times in 23 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	The guy I work with used to design tires for firestone said its called an open splice. Sombody didn't or forgot to put on some type of adhesive on it. They shouldn't come apart.

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