Discussion
I was wondering the same thing and found this thread:
http://www.pistonheads.com/GASSING/topic.asp?h=0&a...
http://www.pistonheads.com/GASSING/topic.asp?h=0&a...
You may need to hunt about to find someone who will do it. Some people won't. Same rules apply as for conventional tyre regarding the position of the puncture.
You need to be sure it hasn't been driven far at low/no pressure. Provided you've seen the pressure loss on your TPM and kept the tyre pumped up you should be fine. Otherwise there's a risk of having weakened the sidewall.
You need to be sure it hasn't been driven far at low/no pressure. Provided you've seen the pressure loss on your TPM and kept the tyre pumped up you should be fine. Otherwise there's a risk of having weakened the sidewall.
DonkeyApple said:
All of them state that run flats are unrepairable with most stating it is illegal to do so.
They are technically repairable if puncture is in middle 1/3 of thread area, and I don't believe it's illegal to do so. The tyre place I use will repair them and do so, so I doubt they will do that if illegal.However, they are cautious about doing so, as they can't always tell if they have been run too far for too long at too low a pressure, which will obviously kill the tyre.
RFT's are also puncture magnets as well.
Rubbish, perfectly repairable I've had multiple done. Even Dunlop themselves say they can be repairs.
Usual excuse is that they can't tel how far they've been driven flat, well you can, as you get little beads of rubber inside as they start to break down.
Personally I like ru flats, the one drawback is finding somewhere that will repair them.
Martin
Usual excuse is that they can't tel how far they've been driven flat, well you can, as you get little beads of rubber inside as they start to break down.
Personally I like ru flats, the one drawback is finding somewhere that will repair them.
Martin
swerni said:
DonkeyApple said:
Two new rear tyres. Normal ones.
It's pretty clear that run flats serve no purpose at all when you have a tin of weld.
You do know you shouldn't mix runflats with standard tyres. It's pretty clear that run flats serve no purpose at all when you have a tin of weld.
Most places will refuse or make you sign a waiver saying they take no responsibility.
Insurance company wont like it either.
This was another reason for ditching run flats. They just stand out as one gross scam, all too typical of the motoring sector.
The situation is that I normally replace tyres when they get below 3mm anyway and the tyres are all around that but I couldn't get any fronts. The size is only made by Goodyear and only as run flats.
So, I need to fit the same size as the rears but the place I used on NYE only had two tyres in stock.
So, faced with being in the middle of nowhere and needing a useable car, my other car that I keep out there is in storage and the chap wasn't around, I was kind of at the mercy of whatever was available.
I had them on a e90 LCI and I diddnt find it too bad however I have them on my new F10 m sport and they feel horrible.
It feels like you are constantly fighting with the car with tramling and the ride over certain surfaces do feel harder.
Mines still have around 6mm on them - I cant wait until my 3 year warrenty comes to a end so I can change them.
On that note has anyone changed or does anyone know if you are allowed to change to non run flats within the first 3 years without it affecting your warrenty?
Thanks
It feels like you are constantly fighting with the car with tramling and the ride over certain surfaces do feel harder.
Mines still have around 6mm on them - I cant wait until my 3 year warrenty comes to a end so I can change them.
On that note has anyone changed or does anyone know if you are allowed to change to non run flats within the first 3 years without it affecting your warrenty?
Thanks
IATM said:
Mines still have around 6mm on them - I cant wait until my 3 year warrenty comes to a end so I can change them.
On that note has anyone changed or does anyone know if you are allowed to change to non run flats within the first 3 years without it affecting your warrenty?
Won't affect warranty. Just change them.On that note has anyone changed or does anyone know if you are allowed to change to non run flats within the first 3 years without it affecting your warrenty?
I got shot of my RFT's on my 135i several months ago, car is only 18 months old, and has been into BMW for warranty work since the change over - nothing was said.
DonkeyApple said:
This was another reason for ditching run flats. They just stand out as one gross scam, all too typical of the motoring sector.
Did they not do the job? Allowing you to complete your journey (at a reduced speed) or drive to somewhere where you could get them replaced? Did they fail to do what they were designed to do, running on flat, safely?TTmonkey said:
DonkeyApple said:
This was another reason for ditching run flats. They just stand out as one gross scam, all too typical of the motoring sector.
Did they not do the job? Allowing you to complete your journey (at a reduced speed) or drive to somewhere where you could get them replaced? Did they fail to do what they were designed to do, running on flat, safely?So, they did a job. Catagorically not safely, there is absolutely no way I would want my wife to be driving on a deflated runflat. And it is a job that can be done much more cheaply by other means. The fiasco of not being able to repair, being told you have to buy 4 new tyres not two by most firms, the cost of them and the seemingly limited supply and range.
No, in my initial experience of engaging the concept of a runflat they are not good value for money and are not the most effective way to solve such an issue.
Historically, I have always kept a tin or two of tyre weld and a cheapo pump in the boot of each car and this has served me well. Plus, being able to always obtain a replacement of any calibre when needed, wherever I am, without mad restrictions slashing your available solutions.
DonkeyApple said:
TTmonkey said:
DonkeyApple said:
This was another reason for ditching run flats. They just stand out as one gross scam, all too typical of the motoring sector.
Did they not do the job? Allowing you to complete your journey (at a reduced speed) or drive to somewhere where you could get them replaced? Did they fail to do what they were designed to do, running on flat, safely?So, they did a job. Catagorically not safely, there is absolutely no way I would want my wife to be driving on a deflated runflat. And it is a job that can be done much more cheaply by other means. The fiasco of not being able to repair, being told you have to buy 4 new tyres not two by most firms, the cost of them and the seemingly limited supply and range.
No, in my initial experience of engaging the concept of a runflat they are not good value for money and are not the most effective way to solve such an issue.
Historically, I have always kept a tin or two of tyre weld and a cheapo pump in the boot of each car and this has served me well. Plus, being able to always obtain a replacement of any calibre when needed, wherever I am, without mad restrictions slashing your available solutions.
I've never had a problem getting runflats repaired as long as they haven't been abused after they have started being run 'on flat'. Yes you can damage them if you drive too far or too fast when they are deflated. If you drive hem too far after the flat indicator light come on though then i suppose they will deteriorate fast.
What car are you running them on? Is it a big heavy car? Maybe that's why they are getting damaged to the point that they aren't safe to repair?
Runflats are't 'magic'. They get you home on a cold wet night, they stop the risk of having to change the tyre on a dark motorway hard shoulder, and they also mean that most women drivers don't get stranded because they don't have the strength to loosen wheel nuts that have become too tight.
Most runflats are damaged by the fact that people ignore the warning light as they don't think there's anything wrong with the tyre, and it drives normally. They actually think the light has come on in error. I cant see how this aligns with your statement that you wouldn't want your wife to continue driving with one runflat deflated.
Yes some places would rather sell you a new tyre than repair a runflat. However, it should be dependent on the tyres condition, and how it has been used since the tyre deflated. And some places just want to make more money out of you.n Saying its illigal to repair them is taking the piss.
TTmonkey said:
DonkeyApple said:
TTmonkey said:
DonkeyApple said:
This was another reason for ditching run flats. They just stand out as one gross scam, all too typical of the motoring sector.
Did they not do the job? Allowing you to complete your journey (at a reduced speed) or drive to somewhere where you could get them replaced? Did they fail to do what they were designed to do, running on flat, safely?So, they did a job. Catagorically not safely, there is absolutely no way I would want my wife to be driving on a deflated runflat. And it is a job that can be done much more cheaply by other means. The fiasco of not being able to repair, being told you have to buy 4 new tyres not two by most firms, the cost of them and the seemingly limited supply and range.
No, in my initial experience of engaging the concept of a runflat they are not good value for money and are not the most effective way to solve such an issue.
Historically, I have always kept a tin or two of tyre weld and a cheapo pump in the boot of each car and this has served me well. Plus, being able to always obtain a replacement of any calibre when needed, wherever I am, without mad restrictions slashing your available solutions.
I've never had a problem getting runflats repaired as long as they haven't been abused after they have started being run 'on flat'. Yes you can damage them if you drive too far or too fast when they are deflated. If you drive hem too far after the flat indicator light come on though then i suppose they will deteriorate fast.
What car are you running them on? Is it a big heavy car? Maybe that's why they are getting damaged to the point that they aren't safe to repair?
Runflats are't 'magic'. They get you home on a cold wet night, they stop the risk of having to change the tyre on a dark motorway hard shoulder, and they also mean that most women drivers don't get stranded because they don't have the strength to loosen wheel nuts that have become too tight.
Most runflats are damaged by the fact that people ignore the warning light as they don't think there's anything wrong with the tyre, and it drives normally. They actually think the light has come on in error. I cant see how this aligns with your statement that you wouldn't want your wife to continue driving with one runflat deflated.
Yes some places would rather sell you a new tyre than repair a runflat. However, it should be dependent on the tyres condition, and how it has been used since the tyre deflated. And some places just want to make more money out of you.n Saying its illigal to repair them is taking the piss.
Drively slowly is potentially as unsafe as driving too quickly. Above 20mph you can feel the total loss of control. There is no way I would accept the risk of my wife driving a car in such a situation.
And the fact is that they didn't solve any problem that couldn't be solved for less money and far more simply.
DonkeyApple said:
It's interesting that you say that so long as you don't run them flat then runflats work fine
Drively slowly is potentially as unsafe as driving too quickly. Above 20mph you can feel the total loss of control. There is no way I would accept the risk of my wife driving a car in such a situation.
And the fact is that they didn't solve any problem that couldn't be solved for less money and far more simply.
Flat as in 'deflated'. You shouldn't see a much of a visable difference in a runflat with air in it and one without. That's with a puncture, not a totally shredded tyre, obviously.Drively slowly is potentially as unsafe as driving too quickly. Above 20mph you can feel the total loss of control. There is no way I would accept the risk of my wife driving a car in such a situation.
And the fact is that they didn't solve any problem that couldn't be solved for less money and far more simply.
"Above 20mph you can feel the total loss of control." Really? Not my experience with over 500k miles on runflats. With maybe half a dozen punctures over that time. not the industries experience either. I cant think of a single magazine report that states that runflats are dangerous....
What car is it that becomes undriveable at over 20mph on runflats? Do you not think maybe other people may have noticed this? Perhaps I've missed the Watchdog programme about all the fatalities caused by runflats?
tyre weld is hit and miss. It works sometimes, sometimes its no good. Spare tyres are the best answer, as long as you can actually change a tyre yourself, most people can't or won't. Changing a tyre is one of the most dangerous things you can do on a motorway in relation to car breakdowns.
Runflats have their uses, but are also a compromise. They don't handle as well as normal tyres, but are a lot better than having a flat on a non runflat.
TTmonkey said:
DonkeyApple said:
It's interesting that you say that so long as you don't run them flat then runflats work fine
Drively slowly is potentially as unsafe as driving too quickly. Above 20mph you can feel the total loss of control. There is no way I would accept the risk of my wife driving a car in such a situation.
And the fact is that they didn't solve any problem that couldn't be solved for less money and far more simply.
Flat as in 'deflated'. You shouldn't see a much of a visable difference in a runflat with air in it and one without. That's with a puncture, not a totally shredded tyre, obviously.Drively slowly is potentially as unsafe as driving too quickly. Above 20mph you can feel the total loss of control. There is no way I would accept the risk of my wife driving a car in such a situation.
And the fact is that they didn't solve any problem that couldn't be solved for less money and far more simply.
"Above 20mph you can feel the total loss of control." Really? Not my experience with over 500k miles on runflats. With maybe half a dozen punctures over that time. not the industries experience either. I cant think of a single magazine report that states that runflats are dangerous....
What car is it that becomes undriveable at over 20mph on runflats? Do you not think maybe other people may have noticed this? Perhaps I've missed the Watchdog programme about all the fatalities caused by runflats?
tyre weld is hit and miss. It works sometimes, sometimes its no good. Spare tyres are the best answer, as long as you can actually change a tyre yourself, most people can't or won't. Changing a tyre is one of the most dangerous things you can do on a motorway in relation to car breakdowns.
Runflats have their uses, but are also a compromise. They don't handle as well as normal tyres, but are a lot better than having a flat on a non runflat.
I can see that being able to crawl in the hardshoulder to an exit is preferable. The tyre will still be ruined. But beyond this I see no decernable benefit.
As for people not being willing or able to change a wheel. Well that's their fault and of no concern of mine.
I can't say that I've noticed the drive differential between runflats and normal tyres that so many people speak of, although obviously the new tyres are not scrubbed in and I'm not pushing ten tenths or a member of the BRDC.
DonkeyApple said:
Your experience is very clearly different from mine. The moment the tyre deflated it was unsafe. Absolutely no way it could have been driven anywhere near the recommended max of 50 mph. The handling of the car was 100% compromised. It was no different to letting half the air out of a tyre.
I can see that being able to crawl in the hardshoulder to an exit is preferable. The tyre will still be ruined. But beyond this I see no decernable benefit.
As for people not being willing or able to change a wheel. Well that's their fault and of no concern of mine.
I can't say that I've noticed the drive differential between runflats and normal tyres that so many people speak of, although obviously the new tyres are not scrubbed in and I'm not pushing ten tenths or a member of the BRDC.
What car was this on DA? I can see that being able to crawl in the hardshoulder to an exit is preferable. The tyre will still be ruined. But beyond this I see no decernable benefit.
As for people not being willing or able to change a wheel. Well that's their fault and of no concern of mine.
I can't say that I've noticed the drive differential between runflats and normal tyres that so many people speak of, although obviously the new tyres are not scrubbed in and I'm not pushing ten tenths or a member of the BRDC.
Agreed the inability to change a flat tyre for the spare is a shocking statement of our current road users lack of basic skills. its true that most people now wont change their own.
The differential is usually felt in terms of comfort for most drivers, runflats tend to be hard, and if you've got a dodgy spine you'd probably feel the difference. RF's also tend to not put the power down quite so well as normal performance tyres, and tend to skip about more on uneven surfaces. Technology has improved though, so maybe this has been fixed in recent years.
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