Would you risk getting rid of runflats for normal?
Discussion
Without a spare wheel?
I need two new front tyres on the 5-series (and one on the rear very soon too). All 4 are bridgestone runflats. Reaplacments are about £120 each. However I can get none runflat ditchfinders for £45 each.
Is it worth the risk of getting ride of the runflats for normal ones and just hope I don't get a flat?
I need two new front tyres on the 5-series (and one on the rear very soon too). All 4 are bridgestone runflats. Reaplacments are about £120 each. However I can get none runflat ditchfinders for £45 each.
Is it worth the risk of getting ride of the runflats for normal ones and just hope I don't get a flat?
ive run non runflats for 25k a year plenty of evening in the rain stuff with ultraseal pumped in them ,got me out of trouble twice just sealed the tyres up after a nail went in.
Will be going back to runfflats as I might be chopping it in next year
Will be going back to runfflats as I might be chopping it in next year
Edited by smashy on Monday 7th August 20:43
I bought MPSS before, now swapped to the new PS4S. I have a compressor in the car and a can of expanding foam if it's really bad.
Check these tyres, may have been "run in" before the swap ! Still kept their air ;-) one also had a nail, which caused a puncture a few miles from the tyre shop - stopped and filled with air, no problem - tough as old boots (XL loading).
The new PS4S (up one size, bigger wheels, 235/265)
The old tyres ! That's what camber and stiff tyres does, had the right tyre pressure, regularly laser aligned, etc. Tough tyres (non RFT)
Check these tyres, may have been "run in" before the swap ! Still kept their air ;-) one also had a nail, which caused a puncture a few miles from the tyre shop - stopped and filled with air, no problem - tough as old boots (XL loading).
The new PS4S (up one size, bigger wheels, 235/265)
The old tyres ! That's what camber and stiff tyres does, had the right tyre pressure, regularly laser aligned, etc. Tough tyres (non RFT)
Just for balance, no - I have considered switching but my experience persuaded me not to. I scraped a sidewall on my 3 Series on a jagged kerbstone. It only looked like cosmetic damage. A few days later it depressurised on the motorway. Nothing dramatic and I managed to get off the M25 and home, and to the local BMW garage the next morning.
From what I could see, a non-runflat would (a) have been unrepairable and (b) deflated much more dramatically. At best, I would have been stuck on the hard shoulder waiting for a flatbed. At worst, I would have lost control.
I also drive on French and Swiss autoroutes 3-4 times a year. So overall, my risk analysis concluded that I would stick with the runflats. I appreciate that lots of people have different scoring and circumstances, and you can't generalise from individual cases (although the latter works both ways). So there's no single 'right' answer.
From what I could see, a non-runflat would (a) have been unrepairable and (b) deflated much more dramatically. At best, I would have been stuck on the hard shoulder waiting for a flatbed. At worst, I would have lost control.
I also drive on French and Swiss autoroutes 3-4 times a year. So overall, my risk analysis concluded that I would stick with the runflats. I appreciate that lots of people have different scoring and circumstances, and you can't generalise from individual cases (although the latter works both ways). So there's no single 'right' answer.
We chose 18" wheels with non run-flats on the X1 last year when bought new so as to avoid the terrible ride they gave on 19's.
My Cayman also has no spare, no run-flats, and a bottle of gumpf.
I understand that if you use the tyre sealant for a puncture you can't have the tyre repaired. So far haven't had to use this stuff.
Most punctures I've had have been slow, wheel removable at home, taken to a tyre shop and repaired for a tenner so I'd be concerned about ruining a good tyre when no spare is carried.
In 40 years I've never had so bad a puncture I was stranded apart from one tyre which shredded itself on the M6, and fortunately I had a spare wheel for that car.
My Cayman also has no spare, no run-flats, and a bottle of gumpf.
I understand that if you use the tyre sealant for a puncture you can't have the tyre repaired. So far haven't had to use this stuff.
Most punctures I've had have been slow, wheel removable at home, taken to a tyre shop and repaired for a tenner so I'd be concerned about ruining a good tyre when no spare is carried.
In 40 years I've never had so bad a puncture I was stranded apart from one tyre which shredded itself on the M6, and fortunately I had a spare wheel for that car.
DJMC said:
We chose 18" wheels with non run-flats on the X1 last year when bought new so as to avoid the terrible ride they gave on 19's.
My Cayman also has no spare, no run-flats, and a bottle of gumpf.
I understand that if you use the tyre sealant for a puncture you can't have the tyre repaired. So far haven't had to use this stuff.
Most punctures I've had have been slow, wheel removable at home, taken to a tyre shop and repaired for a tenner so I'd be concerned about ruining a good tyre when no spare is carried.
In 40 years I've never had so bad a puncture I was stranded apart from one tyre which shredded itself on the M6, and fortunately I had a spare wheel for that car.
My Cayman also has no spare, no run-flats, and a bottle of gumpf.
I understand that if you use the tyre sealant for a puncture you can't have the tyre repaired. So far haven't had to use this stuff.
Most punctures I've had have been slow, wheel removable at home, taken to a tyre shop and repaired for a tenner so I'd be concerned about ruining a good tyre when no spare is carried.
In 40 years I've never had so bad a puncture I was stranded apart from one tyre which shredded itself on the M6, and fortunately I had a spare wheel for that car.
We had a puncture in our SLK last year, not runflat of course. Reinflated with tyre sealant. Lasted about 30 miles then went down again and we were recovered home.
Car had done about 10k. I had two new tyres fitted, as my changer was out of action then took the original two home and cleaned and repaired the injured one. So now I have two good rear spares, if we have the car long enough to need them!
Tyres with sealants in can generally be repaired but most tyre shops won't spend the time to clean, dry and then fix. The time the tyre takes to dry after washing out the sealant often makes it impractical of course.
Wouldn't change the runflats on our 5 series, without a spare and even the the safety benefit in the admittedly rare case of a rapid deflation is worth consideration.
I just have yes, the difference is incredible.
I had 255/30 19's on the rear, they looked like rubber bands so I've also gone up to 255/35 19's with a Uniroyal Rainsport 3.
So for the tyres have been excellent, the front end has so much more grip as does the rear.
I'm fairly sure my car doesn't even have a jack so I'd be calling the AA regardless!
I had 255/30 19's on the rear, they looked like rubber bands so I've also gone up to 255/35 19's with a Uniroyal Rainsport 3.
So for the tyres have been excellent, the front end has so much more grip as does the rear.
I'm fairly sure my car doesn't even have a jack so I'd be calling the AA regardless!
e21Mark said:
Lots of cars run without a spare. Most usually carry a can of tyre rear gunk or just call the AA/RAC. How often are you really likely to get a puncture anyway?
Exactly. Not only that but a puncture bad enough that you can't run on it. I've not had a car with a spare now for almost 10 years/>100k and it's never been a problem. In the 3-4 instances that I've had a puncture the tyre has still been able to be driven on as the puncture has been slow. And in all instances the tyre has been repairable.
Contrast with my wife who has had 2 car on RFTs now within the last 6yrs and out of 3 punctures, only 1 was repairable. All 3 were similar in nature to the punctures I've had - screw in the tyre type. My understanding is that the repairable area on an RFT is smaller than a non-RFT and on top of that a lot of places simply won't repair them.
stuart-b said:
I bought MPSS before, now swapped to the new PS4S. I have a compressor in the car and a can of expanding foam if it's really bad.
Check these tyres, may have been "run in" before the swap ! Still kept their air ;-) one also had a nail, which caused a puncture a few miles from the tyre shop - stopped and filled with air, no problem - tough as old boots (XL loading).
The new PS4S (up one size, bigger wheels, 235/265)
The old tyres ! That's what camber and stiff tyres does, had the right tyre pressure, regularly laser aligned, etc. Tough tyres (non RFT)
How old are these tyres? I would have thought a split like that would be a defective tyre, take it back and ask for a replacement.Check these tyres, may have been "run in" before the swap ! Still kept their air ;-) one also had a nail, which caused a puncture a few miles from the tyre shop - stopped and filled with air, no problem - tough as old boots (XL loading).
The new PS4S (up one size, bigger wheels, 235/265)
The old tyres ! That's what camber and stiff tyres does, had the right tyre pressure, regularly laser aligned, etc. Tough tyres (non RFT)
un1corn said:
Without a spare wheel?
I need two new front tyres on the 5-series (and one on the rear very soon too). All 4 are bridgestone runflats. Reaplacments are about £120 each. However I can get none runflat ditchfinders for £45 each.
Is it worth the risk of getting ride of the runflats for normal ones and just hope I don't get a flat?
Given that I've just paid over £400 for two front RFTs on my 3er, £120 each sounds like a right bargain.I need two new front tyres on the 5-series (and one on the rear very soon too). All 4 are bridgestone runflats. Reaplacments are about £120 each. However I can get none runflat ditchfinders for £45 each.
Is it worth the risk of getting ride of the runflats for normal ones and just hope I don't get a flat?
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