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997 Coast
Montreal


Joined: 04 Apr 2015
Posts: 560



PostPosted: Thu Feb 08, 2018 4:45 pm    Post subject: Bridgestone N rated cracking after 3 years Reply with quote

Fellow owners

Have anyone else noticed this ( mine pre mot inspection at revolution porsche)

Tyres manufactured 2015 / fitted July 2015 @ 36k miles - drawn to my attention this week at mot / major service time. 44k miles

Fronts 235/35/19 N rated
Rears 295/30/19 N rated

About 8,000 over three years

Since fitting had 2 wheel alignment checks so camber etc aint a issue - tread depth now fronts 6mm rear 4mm

Is it worth informing Bridgestone ( be fobbed off) or go to a french tyre that provides great grip
Comments

Michelin next time
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997.1 S2 ex 911 Carrera sport 3.2 (1987) 944S (1986)
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Last edited by 997 Coast on Fri Feb 09, 2018 5:35 am; edited 3 times in total
 
  
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wasz
Magny-Cours


Joined: 28 Dec 2012
Posts: 2515


1999 Porsche 996 Carrera 2

PostPosted: Thu Feb 08, 2018 5:20 pm    Post subject: Reply with quote

I've heard of both continental and pirelli replacing tyres due to premature cracking.

Worth a phone call.
 
  
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997 Coast
Montreal


Joined: 04 Apr 2015
Posts: 560



PostPosted: Thu Feb 08, 2018 5:37 pm    Post subject: Reply with quote

Thumb

will they listen - I doubt it Bandit
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Last edited by 997 Coast on Fri Feb 09, 2018 5:36 am; edited 1 time in total
 
  
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digby
Trainee


Joined: 10 Dec 2010
Posts: 91



PostPosted: Thu Feb 08, 2018 5:53 pm    Post subject: Reply with quote

where are the cracks ??

Got a photo ?
 
  
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Dook
Newbie


Joined: 03 Oct 2017
Posts: 11
Location: Herts


PostPosted: Thu Feb 08, 2018 7:21 pm    Post subject: Reply with quote

Slightly off topic, but 8k in 3 years AND it is a daily driver??!! I have done 1,500 miles in mine already, and only had it 2 months and it is a 3rd car!!! How on earth do you manage to ration yourself that much???
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deMort
Shanghai


Joined: 21 Mar 2015
Posts: 4919
Location: Brighton


PostPosted: Thu Feb 08, 2018 8:05 pm    Post subject: Reply with quote

I have seen it .. normally on fronts only .. not sure if its caused by low pressure running .. hard cornering or just a fault in a batch of tyres .. older tyres do crack and thats kinda normal but not at the age of yours .

I doubt the company will be that interested .. rear tyres are almost at 3mm which is when Porsche recomend replacement .

Cracking from my point of view is an advise on a service .. im only concerened if the cracks go down to the coords .. in that case its a little more than an advise !
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Alfaian
Imola


Joined: 12 Mar 2014
Posts: 797
Location: S.wales


PostPosted: Thu Feb 08, 2018 8:31 pm    Post subject: Reply with quote

Mine are usually bald by then Smile
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997 Coast
Montreal


Joined: 04 Apr 2015
Posts: 560



PostPosted: Fri Feb 09, 2018 5:37 am    Post subject: Reply with quote

digby wrote:
where are the cracks ??

Got a photo ?


on treads and side walls
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MaxA
Suzuka


Joined: 11 Oct 2015
Posts: 1123
Location: Helsinki


PostPosted: Fri Feb 09, 2018 6:54 am    Post subject: Reply with quote

You can raise it with Bridgestone, they may agree to investigate or provide some sort of gesture, but I think you'll just have to replace all four. Presumably with Michelins.
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Steve997
Monza


Joined: 11 Aug 2013
Posts: 213



PostPosted: Fri Feb 09, 2018 7:18 am    Post subject: Reply with quote

I take it you check the pressures regular.

I would imagine incorrect pressures could have an effect
 
  
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Scholester
Suzuka


Joined: 16 Jan 2012
Posts: 1022
Location: South West


PostPosted: Fri Feb 09, 2018 7:34 am    Post subject: Reply with quote

I have Bridgestones and the rears are begining to crack at the outer edge between the tread blocks. I had considered sticking with the same but as it seems a more common problem, replacements will be Michelin.
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997 Coast
Montreal


Joined: 04 Apr 2015
Posts: 560



PostPosted: Fri Feb 09, 2018 8:07 am    Post subject: Reply with quote

Scholester wrote:
I have Bridgestones and the rears are begining to crack at the outer edge between the tread blocks. I had considered sticking with the same but as it seems a more common problem, replacements will be Michelin.



Thumb Totally agree - intend to replace with Michelin. Better grip I am informed. Thats a bonus.
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digby
Trainee


Joined: 10 Dec 2010
Posts: 91



PostPosted: Fri Feb 09, 2018 9:37 am    Post subject: Reply with quote

Small cracks at the base of the tread blocks, whilst not exactly welcome, could be just the sign of a tough life.

Cracking in the sidewalls (depends where) if the use and inflation specs have been respected is worrisome as great efforts are made to ensure that tyres do not crack or otherwise degrade
 
  
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997 Coast
Montreal


Joined: 04 Apr 2015
Posts: 560



PostPosted: Fri Feb 09, 2018 3:30 pm    Post subject: Reply with quote

Whilst not a garage queen it's been sensibly driven and not hammered.
Tyre pressures maintained at 34 / 40 religiously.
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digby
Trainee


Joined: 10 Dec 2010
Posts: 91



PostPosted: Fri Feb 09, 2018 3:45 pm    Post subject: Reply with quote

Pics really needed to make a judgement though
 
  
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Endex
Monza


Joined: 10 Jan 2016
Posts: 202
Location: Preston, Lancashire


PostPosted: Fri Feb 09, 2018 9:44 pm    Post subject: Reply with quote

Had this with my rear Bridgestones, 2014 dated so replaced them at 4mm with MPSS. Slightly unsightly but not an MOT fail unless really bad.
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Delanor
Nürburgring


Joined: 01 Oct 2016
Posts: 421
Location: The land of the big cat!


PostPosted: Sun Feb 11, 2018 1:31 am    Post subject: Reply with quote

Had quite bad looking cracks in the base of the tread of two Bridgestones on my daughters Mini Cooper so I emailed Bridgestone about it with some photographs they sent an engineer to inspect them his verdict was that it was purely cosmetic and the tyres were perfectly OK to use, he said they would give an allowance on replacements if we wanted he also gave us a written confirmation that the tyres were perfectly safe to continue to use in case they were snagged on an MOT.

*
*
Del.
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Scholester
Suzuka


Joined: 16 Jan 2012
Posts: 1022
Location: South West


PostPosted: Sun Feb 11, 2018 8:36 am    Post subject: Reply with quote

Delanor wrote:
Had quite bad looking cracks in the base of the tread of two Bridgestones on my daughters Mini Cooper so I emailed Bridgestone about it with some photographs they sent an engineer to inspect them his verdict was that it was purely cosmetic and the tyres were perfectly OK to use, he said they would give an allowance on replacements if we wanted he also gave us a written confirmation that the tyres were perfectly safe to continue to use in case they were snagged on an MOT.

*
*
Del.

That is interesting Del. Do you have any photos of the damage and a copy of the report you can post?
How old were the tires in question and did you have to show a receipt of purchase?
How much allowance was he offering against new replacements?
I will get a photo of mine today and post it up by way of comparison.
Scholester.
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Chris W
Approved Trader


Joined: 17 Sep 2006
Posts: 7869
Location: North, South, East & West

2000 Porsche Boxster (986)

PostPosted: Sun Feb 11, 2018 10:02 am    Post subject: Reply with quote

Generally very common on Bridgestone RE050A and also Pirelli PZero N2 are notorious for this within 1-2 years. Not ideal but not really a major safety issue unless very deep and on older tyres. The compounds on these tend to 'dry out' more than say Michelin.

It may be accelerated by use of TFR, truckwash or other heavy duty wheel cleaners often used in hand car wash outfits, and also by UV exposure if parked in the sun rather put away in a garage.
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DynoMike
Barcelona


Joined: 25 May 2012
Posts: 1431
Location: The Cotswolds

2003 Porsche 996 Turbo

PostPosted: Sun Feb 11, 2018 3:01 pm    Post subject: Reply with quote

Had the same thing on Bridgestone S02As on my 996T, the fronts cracked at the root of the tread block, rears were perfect. Tyres were 3 years old.

Fitted Mich PS2s and haven't changed back. The Bridgestones do offer a very direct steering feel compared to the Michelins but in terms of outright grip, the french rubber has it easily.
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Previous toy 1974 Mini 1000
 
  
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