Runflat Tyres Safer-Are now a Major Car Safety Feature-by Bridgestone Tyres

Runflat Tyres Safer

Bridgestone tyres

Bridgestone tyres first started to develop the concept of the runflat tyre in Japan as part of type of aid to disabled people. The tyre that was used was a 175/70×13 that had a strengthened side wall fitted on to the Honda Civic, this was done in the “International Year Of The Disabled”.

Runflat Tyres Safer

Bridgestone tyres run flat

 

Later this side wall protection technology was used on the Porsche 959 and Bridgestone called the new tyre the Potenza RE71.

This new development proved a success and in the1990s Bridgestone  developed the TPMS,”Tyre Pressure Monitoring System” . This was to enable the driver to know when a tyre had lost pressure, a light on the dash would be light up when the tyre pressure dropped, warning the driver if a tyre went flat, in my opinion this made the Runflat Tyres Safer.This system was to become very popular as a safety feature and was fitted to many of the German made cars such as BMW.

This Runflat Tyres Safer allows the driver to carry on driving the car with a flat tyre. There are restrictions though, the car must be driven at 50mph for a maximum distance of 50 miles, this enables the driver to drive the car to a safe stopping place without the car swerving or deviating off course. These cars that are fitted with this Runflat Tyres Safer system do not carry a jack or spare wheel and in my opinion this lets the system down. Some car makers will tell us that this makes the car lighter and therefore more fuel efficient and greener. In my opinion I feel that in general it is a good idea and safer if the car has a rapid loss of air (blowout) on a busy motorway, the car will not deviate and keep in a straight line,making driving with Runflat Tyres Safer.

The odds of this happening though are not as high as the motorist having what I call a “normal puncture”,

this is where the grey area is and this is what Bridgestone  say…

With certain types of punctures in the tread area, the Bridgestone Run-Flat technology tyres may be repaired subject to certain conditions (Depending on how far and at what speed the car was driven after the puncture). Please consult your nearest RFT authorized dealer to have yours inspected.
Before attempting a repair, consult the vehicle owner’s manual for restrictions. The vehicle manufacturer may restrict the use of repaired tires on its vehicles”… http://www.runflat.eu/english/qa/

In my opinion we would repair a runflat tyre only if the customer says that he has had a slight loss of pressure and we can find an object such as a screw or nail within the legal area of a normal tyre puncture for example ¾ 0f the tread width from the centre of the tread outwards and the tyre had not run whilst in a totally deflated state, we would have to take the drivers word for this,so we always take caution and inspect the tyre for any signs of running under inflated, such as

Runflat Tyres Safer

How a runflat tyre works

carbon dust or creasing and cracking on the inside of the casing. If we are not sure we would always fit a new tyre.

Eric Roberts… https://www.pellonautocentre.com/runflat_tyres.htm

Can I replace run flat tyres with normal tyres ?

In my opinion the answer is NO , but the following text from  Bridgestones  website does open a slight gap…

Bridgestone EU do not recommend mixing tyres with Run-Flat Technology and standard tyres on the same vehicle, even if paired in axle sets. If you have a puncture, tyres with Run-Flat Technology are designed to permit you to proceed to a tyre dealer where you can have the tyre checked and replaced if necessary with another tyre with Run Flat Tyres Technology. In exceptional and emergency circumstances a conventional tyre of the same size can be fitted. It must be noted that standard tyres do not have Runflat Tyres Safer characteristics and should be removed at the earliest opportunity”… http://www.runflat.eu/english/qa/

In my opinion they should say that the two different types of tyres should not be mixed, but they say that you can mix them in an emergency, could the fact that the car owner just cant afford them be classed as an emergency.

Ring your insurance company is the advice that I give to all you 2nd and 3rd hand BMW Mini owners when you fall on the floor at the cost of replacing runlat tyres.

Pellon Tyre and Auto-centre offer car and van servicing and repairs to all makes of vehicles. We are members of Unipart Car Care centres and give a nationwide guarantee for all our work and parts. We also sell Cheap Runflat Tyres online from our website www.pellontyres.co.uk by using the tyre selector and choosing your tyre size. We offer courtesy cars to local motorists who need to go to work and leave their car with us for work doing. We are also an official MOT testing station and are members of Motor-codes, who carry out checks for high standard of equipment and workmanship.

Runflat Tyres Are-Safer-When a rapid tyre de-flation happens on your car

 Post Updated 26th Dec 2013

Runflat Tyres Are-Safer;and What do runflat tyres do ?

Many of my customers complain when they have to buy their first replacement runflat tyres. They simply do not understand how these tyres have evolved during the past 10 years of car design and its all linked with green house gasses and your cars emissions.

Runflat Tyres Are-Safer and also help to reduce the overall weight of your car. This is done by not having a spare wheel, jack or wheel brace, which reduces the overall weight of the car thus making your car

Runflat Tyres Are-Safer

Runflat Tyres Are-Safer;How run flat tyres work

car more fuel efficient. Also the fact that you do not have a spare wheel gives you more space in the boot and as stated a lighter load. The runflat tyres are also made from less materials than the conventional tyres which also makes them more environmentally friendly.

As far as tyre performance is concerned the BMW Run Flat Tyres are just the same as the conventional tyres providing all the benefits of the modern performance tyres, the main difference is that when your car has a puncture while you are out driving, then the runflat tyre will not deflate giving your car normal handling and cornering therefore reducing the risk of an accident with other road users, in other words Runflat Tyres Are-Safer . This is especially important say if you were in the fast lane of the motorway when the puncture occurred. Your normal tyre would instantly deflate making your car very unstable and possibly causing a bad accident, in fact figures show that tyres cause a large percentage of motor related accidents, and the runflat tyres are a big improvement on the accident figures, enabling the driver to keep a straight line when a puncture occurs in one of the runflats. .

These new runflat tyres systems were originally created to keep drivers safe, because punctures and blow-outs can be dangerous, and as stated before account for a large majority of fatal accidents on the road. Apart from safety, a flat tyre can be a real inconvenience, adding time and cost and sometimes embarrassment to your journey. Changing a tyre is fairly straightforward, but it often occurs at the most inopportune moment – getting stuck on the side of a motorway or in the pouring rain with noisy kids in the back seat is really no fun at all! And trying to change a tyre on the hard shoulder can be dangerous in itself, or even impossible if you are disabled or elderly, in fact many drivers have to call out the rescue services to change the wheel for them,

But the drivers with runflat tyres and tpms systems do not have to put up with this

and once the tyre warning light comes on in the cab, they can safely tootle home or carry on with their journey,(all be it at 50 mph, which is the recommended speed once you have a flat on your runflat tyres).

Runflat Tyres Are-Safer;Any vehicle fitted with runflat tyres

should also include a Tyre Pressure Monitoring System (TPMS) this will show you whether you tyre pressure has been lost, this is because without this the loss of pressure in your 

Runflat Tyres Are-Safer

Runflat Tyres Are-Safer;Tyres construction

tyres will not be noticed. Runflat tyres are meant to maintain there speed, handling and smoothness of driving when a puncture occurs, even when driving on a motorway. A TPMS is essential to alert the driver to a loss in tyre pressure, and will indeed becoming part of the MOT test in the near future. Your TPMS works from either a sensor in your wheel , which is usually a special valve or from the cars ABS braking system.

Almost all of the Worlds leading tyre companies Bridgestone Run Flat Tyres make runflat tyres including Continental and Goodyear, cheap tyres can be bought online, but I recommend that you stick to the make that you have on the car at the moment or as a good cheaper alternative we recommend General and Apollo tyres.

About Eric Roberts Run Flat Tyres Review

Hi I would like to introduce myself. I have worked in the Garage and tyre industry now for 40 years. I worked for a couple of national tyre companies before starting my first business. I now own a company here in the UK called Pellon Tyre and Auto-centre, and I am a keen blogger about anything to do with cars and their related products that will help my business.

BMW Minis Run Flat Tyres-Many drivers with older BMW Minis find the tyres Expensive?

BMW Minis Run Flat Tyres

BMW Minis Run Flat Tyres-Many owners of BMW Minis are are just coming to terms with run flat tyres. Here in Halifax, we pride ourselves on our excellent client base, from mini drivers who trust us to carry out servicing on their cars. Trust is essential when it comes to advice about your car.

BMW Minis Run Flat Tyres-Price is important when selecting the correct run flat tyres

A few years ago I could see the writing on the wall. Thus, regarding a popular car. BMW mini and the high cost of parts including BMW Minis Run Flat Tyres. Hence, when the cars were becoming second and third hand. This time has now arrived.Therefore, with drivers looking for Cheap Run Flat Tyres.

The original mini (British Leyland) were build, for the main masses of the population. Thus, to enable working class motorists to afford a good reliable little car. I myself have owned five minis (old type) in my time and loved them all. You could get the up-market minis. Such as the mini cooper. But you would expect to pay a higher price for such things as new tyres. The normal tyres for Mini Cars were 145×10 and they would cost the same price for years on end (except for inflation). You knew that if you went on to a mini cooper you would have to pay more, because the tyre size was 16570×10, Get what I am on about ?.

BMW Minis Run Flat Tyres

Then bringing us back to the present.hence, came the BMW mini. Naturally, a completely different animal. This car has all the modern gadgets on board. Hence, to help in the battle BMW Minis Run Flat Tyresagainst greenhouse gases. Therefore, is fitted with many things that were not dreamed of when the old minis were around.

Cars now have to be made much lighter and one of the things they started doing was to mess about with spare wheels, no spare tyre in the boot. This was a duel effect, in my opinion, it did lessen the weight of the car but it also cut the price of the by the price of the tyre and wheel, times this by millions and it comes to a major saving. Most BMW minis started to come out on what we now know as run flat tyres. This simply means that if you have a puncture the tyres will remain strong enough to get you to safety, providing you only drive at 50mph.

BMW Minis Run Flat Tyres

In my opinion, the theory of this idea is a good safety feature, the strength of the tyre does not allow the car to move, thus keeping the car in a straight line and avoiding other traffic. The problem occurs when the driver turns up at the local tyre centre.
ost run-flat tyres will not repair once they have had a puncture

BMW Minis Run Flat Tyres

BMW Minis Run Flat Tyres

The people that buy second and third hand BMW minis are usually young people, and mostly females and when they realise the cost of new BMW Minis Run Flat Tyres they freak out, some of the sizes now cost £180 each, that’s buying them online at cheap tyre prices.

Cheap BMW Minis Run Flat Tyres may be bought in budget brands but do not go for part worn  run flat tyres as it is more important to know where they have been and used for (the history) than normal tyres.

 

Eric Roberts

Pirelli Run Flat Tyres Can We Repair Them?

When the run flat tyre first came on to the market

I was not so sure what to think? The tyres were developed together with the car manufacturers and were developed to specifically fit the cars on which they were to be fitted.

bmw runflat tyres

The customers BMW with the run flat tyre problem

The whole concept surrounding these tyres is based on safety, both for their car and more importantly the driver. Another factor was that these cars could do without a spare wheel, thus reducing the weight of the car. This has contributed to the “green” credentials of the cars that they were fitted to.

Tyre Pressure Monitoring Systems (TPMS) have to be used with run flat tyres

Pirelli Run Flat tyres were specifically developed to be based on the specifications of the cars on which they are to be fitted. This means that, Run Flat tyres may only be mounted on vehicles that are specifically made to have the Run Flat tyres. This was one of my first bones of contention, when my young apprentice tyre fitter snapped the TPMS valve where it was located on the inside of the wheel where the  normal tubeless valve would normally be fitted. (cost me £80 to replace)

I also had purchase one of the new style tyre fitting machines, because of the difficulties that we encountered when trying to remove and re-fit the tyre from the wheel. The new type machines were equipped with special tyre hold down tools that held the tyre in place so that the fitter could use both hands when removing and fitting these difficult  tyres. After a while we were used to fitting these tyres and also learned about the TPMS systems that accompanied these tyres fitted to the car.

The Pirelli P7 Cinturato run flat tyres was also developed as a more environmentally product, because Pirelli had also taken the time to not only make the tyre into a run flat ,but also make the tyre into a high performance design tyre with lower fuel consumption and reduced road noise. They were also able to use a more eco-friendly compound to the tread area, giving this tyre more stability in the footprint area. The development of this tyre brought together many improvements making it a highly safe product that would complement medium and high powered vehicle such as the BMW range including the BMW Mini models.

When a loss of pressure arises in a run flat tyre then you must only continue at 50mph

The high volume of cars that are now fitted with the run flats, have helped me in thinking that these tyres have become a success story. At first I wasn’t sure I thought that they were just a passing fad that would go as quickly as the appeared. But I was wrong, because I have listened to some of the stories from my customers, of how they prevented them from having an

 run flat tyres

Pirelli run flat tyre showing the extent of the damage

accident and also of how they were able to carry on with their journey. The truth is that if your tyre suddenly loses pressure when you are doing 70mph, on a busy motorway, then you will have a better chance of getting out of a sticky situation, than you would have with normal radial tyres.

Your car will remain stable and not deviate and possibly cause a crash in busy traffic, as happened to a friend of mine recently. His tyre blew out and he hit the central reservation causing the car to swerve and have an accident. Although he was badly injured he is now fully recovered, but I am sure that of he had run flats fitted to his car then the car would have kept the line and not crashed  into the barrier, throwing it into the path of the traffic in the other lane.

Also if you do lose tyre pressure and it will tell you on your TPMS instrument on the dash of your car, then you must only drive at 50mph. At 50mph you can drive the car 50 miles , this is usually enough distance to enable the driver to reach the safety of a garage or the nearest tyre centre and have the tyre attended to.

Pirelli recommend that we should not repair run flat tyres

As the heading suggests Pirelli is one of the manufacturers that do not recommend that we repair run flat tyres. We at Pellon Tyres here in Halifax have been known to repair these tyres but only if knew that there was a screw in the tyre and the tyre had not deflated and the TPMS light had not come on. We have since stopped this procedure altogether now and only fit a new tyre, because we just do not know what damage was done, when the tyre was de-flatted.

This reminds me of a recent case in mind. One of our lady driver customers who owns a very nice BMW, had noticed her TPMS light was warning her of a problem with her near side front tyre, which had a pressure loss. The BMW was fitted with Pirelli tyre as original equipment size 225/45×18 P7 Cinturato.

She was heading from the M62 motorway, back to Halifax when the incident happened and was not too sure what the light coming on meant. She carried on driving and then decided to pull in and give us a ring for advice. Because the car was fitted with a TPMS system we knew that the car would be on run flat tyres and so we recommended that she drove the car carefully to our depot in Halifax, a distance of about 5 miles well within the 50 mile recommended by Pirelli.

When she arrived, the inside of the side wall of the tyre was completely coming away and so we had to fit the lady a new tyre. The customer worked in a high up position for the local  run flat tyrescouncil, but because we had a tyre in stock she was able to attend her meeting. If she had normal radial tyres fitted then she would have been delayed until someone came out to change her wheel, so everybody was happy…more reading… http://www.pirelli.com/tyres/en-gb/car/find-your-tyres/all-about-tyres/technology-runflat

Pellon Tyre and Auto-centre offer car and van servicing and repairs to all makes of vehicles. We are members of Unipart Car Care centres and give a nationwide guarantee for all our work and parts. We also sell Pirelli Run Flat Tyres online from our website www.pellonautocentre.com by using the tyre selector and choosing your tyre size. We offer courtesy cars to local

 run flat tyres

Second picture showing that this run flat was able to drive even with the inside of the tyre ripped apart

motorists who need to go to work and leave their car with us for work doing. We are also an official MOT testing station and are members of Motor-codes, who carry out checks for high standard of equipment and workmanship.