Do I need to replace both front tyres due to a puncture?
Discussion
My tyres (Pirelli PZero's) on my 981 are complete screw/nail magnets - This is the 6th puncture I've had now in under two years!
So far I've been able to get them repaired (I know that strictly speaking these tyres aren't supposed to be repaired but I'm not going crazy in it). However, I'm pretty sure the front offside has already had two repairs, so I don't think they do it a 3rd time, which means I'm going to have to replace the damn tyre.
So, do I need to replace both? I've done a little over 10,000 miles so there's plenty of wear left in them, but obviously a new one is going to have a slightly bigger diameter than the part worn one. As I mentioned, I'm not spanking the car all the time (save the odd bit of fun on B-roads and dual carriageways!).
I hope the answer is 'no' as at £200 a pop it's going to be expensive - not to mention I'll have another puncture within 4 months (that's my current average!).
So far I've been able to get them repaired (I know that strictly speaking these tyres aren't supposed to be repaired but I'm not going crazy in it). However, I'm pretty sure the front offside has already had two repairs, so I don't think they do it a 3rd time, which means I'm going to have to replace the damn tyre.
So, do I need to replace both? I've done a little over 10,000 miles so there's plenty of wear left in them, but obviously a new one is going to have a slightly bigger diameter than the part worn one. As I mentioned, I'm not spanking the car all the time (save the odd bit of fun on B-roads and dual carriageways!).
I hope the answer is 'no' as at £200 a pop it's going to be expensive - not to mention I'll have another puncture within 4 months (that's my current average!).
They should be around £160-170 per tyre (I'm assuming 20"s). You don't have to pay the OPC price.
At 10,000 miles the remaining tyre is at least half worn and you're always going to have a situation where there is uneven wear from now on (unless you drive in a circle with the less worn tyre on the outside!).
At 10,000 miles the remaining tyre is at least half worn and you're always going to have a situation where there is uneven wear from now on (unless you drive in a circle with the less worn tyre on the outside!).
pete.g said:
They should be around £160-170 per tyre (I'm assuming 20"s). You don't have to pay the OPC price.
At 10,000 miles the remaining tyre is at least half worn and you're always going to have a situation where there is uneven wear from now on (unless you drive in a circle with the less worn tyre on the outside!).
The cheapest I've found them for is £184 fitted via Mytyres.co.uk (Pirelli PZero 35/40 ZR19 (92Y) with rim protection ridge). I wouldn't even bother to ask the OPC!At 10,000 miles the remaining tyre is at least half worn and you're always going to have a situation where there is uneven wear from now on (unless you drive in a circle with the less worn tyre on the outside!).
If you (or anyone) knows of a cheaper place to get them I'm all ears. :-)
Tyreleader
http://www.tyreleader.co.uk/car-tyres/pirelli/pzer...
Under £150 for the tyre - not sure of fitting/delivery etc
http://www.tyreleader.co.uk/car-tyres/pirelli/pzer...
Under £150 for the tyre - not sure of fitting/delivery etc
Mad March Taffy said:
Tyreleader
http://www.tyreleader.co.uk/car-tyres/pirelli/pzer...
Under £150 for the tyre - not sure of fitting/delivery etc
Thanks for that - by the looks of it I don't think they have the rim protection though (they normally have 'FSL' somewhere) so that's probably why they're a bit cheaper. For an extra £20 per tyre I think it's probably worth having as I'd hate to kerb the alloys!http://www.tyreleader.co.uk/car-tyres/pirelli/pzer...
Under £150 for the tyre - not sure of fitting/delivery etc
You would have to in Germany.
In the US, I posted this:
So you have a blowout or a non-repairable flat. And you have 3 perfectly good tires. What to do?
The general rule of thumb is "At least same tread depth and same tread design on an axle". So what is "same depth"? With 70% of original tread depth or more it is safe to replace just one tire. Get much below that and you are violating the "same depth" rule and it starts to get dangerous because you are creating different traction on each side of the car and a different ability to evacuate water away from the contact patch.
By keeping the tread depth nearly the same and the tread pattern the same, you are maximizing the effectiveness of anti-slip brakes and Porsche's Stability Management (PSM).
If you do get just one tire, watch the wear on the older tire and don't let it wear down to where it has no tread depth just because you are trying to get maximum use out of the replacement tire. Remember tread depth differences can cause accidents.
Accidents hurt ...your pocketbook ... your insurance rating ... your health...someone else
In the US, I posted this:
So you have a blowout or a non-repairable flat. And you have 3 perfectly good tires. What to do?
The general rule of thumb is "At least same tread depth and same tread design on an axle". So what is "same depth"? With 70% of original tread depth or more it is safe to replace just one tire. Get much below that and you are violating the "same depth" rule and it starts to get dangerous because you are creating different traction on each side of the car and a different ability to evacuate water away from the contact patch.
By keeping the tread depth nearly the same and the tread pattern the same, you are maximizing the effectiveness of anti-slip brakes and Porsche's Stability Management (PSM).
If you do get just one tire, watch the wear on the older tire and don't let it wear down to where it has no tread depth just because you are trying to get maximum use out of the replacement tire. Remember tread depth differences can cause accidents.
Accidents hurt ...your pocketbook ... your insurance rating ... your health...someone else
mikefocke said:
You would have to in Germany.
In the US, I posted this:
So you have a blowout or a non-repairable flat. And you have 3 perfectly good tires. What to do?
The general rule of thumb is "At least same tread depth and same tread design on an axle". So what is "same depth"? With 70% of original tread depth or more it is safe to replace just one tire. Get much below that and you are violating the "same depth" rule and it starts to get dangerous because you are creating different traction on each side of the car and a different ability to evacuate water away from the contact patch.
By keeping the tread depth nearly the same and the tread pattern the same, you are maximizing the effectiveness of anti-slip brakes and Porsche's Stability Management (PSM).
If you do get just one tire, watch the wear on the older tire and don't let it wear down to where it has no tread depth just because you are trying to get maximum use out of the replacement tire. Remember tread depth differences can cause accidents.
Accidents hurt ...your pocketbook ... your insurance rating ... your health...someone else
Yep - I hear you.In the US, I posted this:
So you have a blowout or a non-repairable flat. And you have 3 perfectly good tires. What to do?
The general rule of thumb is "At least same tread depth and same tread design on an axle". So what is "same depth"? With 70% of original tread depth or more it is safe to replace just one tire. Get much below that and you are violating the "same depth" rule and it starts to get dangerous because you are creating different traction on each side of the car and a different ability to evacuate water away from the contact patch.
By keeping the tread depth nearly the same and the tread pattern the same, you are maximizing the effectiveness of anti-slip brakes and Porsche's Stability Management (PSM).
If you do get just one tire, watch the wear on the older tire and don't let it wear down to where it has no tread depth just because you are trying to get maximum use out of the replacement tire. Remember tread depth differences can cause accidents.
Accidents hurt ...your pocketbook ... your insurance rating ... your health...someone else
I've ordered one for now but am going to be advised by my local tyre fitters. If they think it might be dodgy once they've seen the other tyre then I'll get another quick smart.
I just can't fathom how I'm getting so many damn screws in my tyres - it appears the area around me must be one big building site!
Klippie said:
Before ordering from Tyreleader or any online tyre retailer confirm the date of manufacture of the tyres you will receive as they can be several years old...cheap for a reason.
Sadly it's a bit late for that this time, but good to know for future reference. Assuming they're stored correctly (not in sunlight etc.) that shouldn't be too much of a problem though should it? And couldn't you run into the same problem from any place you get the tyres from?SimR said:
Sadly it's a bit late for that this time, but good to know for future reference. Assuming they're stored correctly (not in sunlight etc.) that shouldn't be too much of a problem though should it? And couldn't you run into the same problem from any place you get the tyres from?
Unfortunately, it doesn't really matter. Beyond a couple of years, the compounds in the tyre will start to change and generally harden.It's also worth bearing in mind that any mainstream manufacturer (particularly Porsche) has it's own specific construction and formulation. An N2 (Porsche) marked 20" Pirelli PZero will have totally different performance to an A0 (Audi) marked Pirelli of the same size and type. Mostly it comes down to things like steering feel, but you may also find that a different spec will wear differently or provide different levels of traction. A Porsche spec front PZero for instance, may well be a softer compound than an Audi one due to it being design for a mid/rear engined application with less weight on the front axle.
SimR said:
I checked with Gigatyres (who are also mytyres.co.uk confusingly!), and they said their tyres are all less than two years old so I'm guessing that's okay? I'm not sure a local tyre place would be any better would it?
I purchased a set for my Evo from my local outlet(not a large chain)a couple of weeks ago and they were only six weeks old. A word of warning - if you go down the non OPC route for tyre replacement ( nothing wrong with that of course as long as you use Porsche N rated tyres ) be careful if your car has TPMS as the sensors are easily damaged by tyre levers etc and the replacement cost will negate any savings in tyre price!
Can't let this go 
RacerMike said:
It's also worth bearing in mind that any mainstream manufacturer (particularly Porsche) has it's own specific construction and formulation. An N2 (Porsche) marked 20" Pirelli PZero will have totally different performance to an A0 (Audi) marked Pirelli of the same size and type. Mostly it comes down to things like steering feel, but you may also find that a different spec will wear differently or provide different levels of traction.
Sorry but this is simply not true. Porsche and the tyre manufactures refuse to provide ANY information on functional or constructional differences between N-rated and non-N.Gassing Station | Boxster/Cayman | Top of Page | What's New | My Stuff