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Locking wheel nut adaptor

I was called out to a customer who had broken their locking wheel nut adaptor and needed to change a blown tyre. He had bought a new adaptor through his local Ford dealer, it took 4 weeks to come, so he wasn't able to use his car for a month. I was called out to change the tyre today, only to find the new adaptor didn't work. Rather than wait another month, he asked me to remove the lock nuts using our specialist tool. He then replaced the lock nuts with standard nuts. It shows that waiting around for a replacement adaptor isn't always worth the wait. Had he called Hometyre last month he could have been back on the road within a day.

 

Falken's new High Performance tyre

Falken is preparing for the UK launch of what it calls its strongest and quietest ultra high performance tyre, the Azenis FK453. The new tyre succeeds, both numerically and in Falken’s line-up, the FK452, a tyre Falken says has been revered by many car enthusiasts for its blend of performance and affordability. With the launch of this latest product, for the first time the Japanese tyre maker is offering Y speed rated fitments suitable for use at up to 186mph or 300km/h. The new range will be available in a total of 62 sizes, including a 20-inch version, to fit sports and performance cars such as the VW Golf GTI, BMW 1 Series M Coupe, Porsche 911 and Audi RS5

 

Morris Minor

This afternoon is going to be fun, I am going to put new tyres on a Morris minor that has been garaged for a number of years. The owner has decided to get the old moggy back on the roads, and as part of the restoration, he needs a rolling chassis, so new tyres are the starting point.

 

Part worn tyres, 'the dangers'

Used tyre scandal Think you’re getting a bargain with a discount part-worn? Think again, as we expose the shock state of some of the tyres on sale Auto Express report by Julie Sinclair

Yes, they’re usually dirt-cheap – four new tyres can cost anything up to £1,000, so it’s hardly surprising that motorists buy an estimated four million part-worn tyres every year, cutting this bill in half on average. Bargain, surely? Apparently not.

Auto Express joined forces with campaign group TyreSafe to investigate the sale and condition of these cut-price, part-worn tyres in the UK, and we were horrified by what we found. Our investigation revealed a thriving black market in illegal, and in some cases lethal, second-hand tyres being sold to unwitting, cash-strapped families.

Yet these part-worn tyre retailers aren’t selling in secret – they have premises on busy high streets and their products are plastered all over the Internet. They also litter big-name auction sites, like eBay.

So you wouldn’t be blamed for thinking that part-worn tyres must be safe to buy and fit to your family car. But you’d be wrong. As part of our joint investigation, TyreSafe bought a random sample of 50 part-worns – half sourced online, half from high street retailers – and then inspected them back at base.

Independent tyre expert Ted Foreman – whose job it was to put them under the microscope – instantly told us all but one wasn’t even legal. Unlike the rest of Europe, the UK has strict rules on the conditions of sale of part-worn tyres. The Motor Vehicle Tyres (Safety) Regulations Act 1994 – part of the Consumer Protection Act – dictates the acceptable repair, tread depth and overall condition of rubber.

It also stipulates labelling and traceability: repairs to the rubber should carry the name and registration number of the garage that did the work. These were missing on all of our repaired tyres. Part-worns must also be ink stamped ‘part worn’ on the sidewall to show the tyre has been checked and meets all of these legal requirements. Only one of our 50 tyres bore that seal of approval – and if our sample is representative of the tyres sold across the UK, that’s a mere two per cent of the entire part-worn tyre stock.

It also means that in 98 per cent of cases, motorists buying these tyres would have no way of knowing if they were safe or not. And they could be pretty certain the seller had not adhered to UK regulations – even though part-worn tyre outlets reassure their customers to the contrary. Auto Express rang six retailers across the country at random, posing as a potential customer, and was told in each case that the tyres had been checked.

Worse still, the omission of the ‘part worn’ stamp on our sample of tyres was the tip of the iceberg – and icebergs are an accurate analogy, because our part-worns appeared in good shape to the untrained eye, but hide an array of dangers. Most had glossy black rubber and healthy tread patterns; all our tyres had at least the legal minimum 1.6mm of tread.

Ted explained: “In many cases, these tyres look great. They have loads of tread and could fool you into thinking they’re a bargain. But when you buy them, you inherit their dodgy history – every time they ran up a kerb, every accident, every time the owner drove on them under-inflated.”

Ted told us driving on under-inflated rubber damages the tyre structurally, and this accumulates over time. “If you pump them up, next time they’re under-inflated it tops up the damage you caused first time around, and eventually leads to a blow-out,” he said.

He added that most motorists wouldn’t get a chance to inspect a part-worn tyre before it was fitted, either. “You need the tyre to be removed from its rim to inspect it,” he warned. “That’s where the safety hazards lie hidden.” Ted carried out his inspection using the same safety checklist that retailers are meant to use before selling these tyres. And he found some shocking faults.

More than one third had shoddy, illegal repairs, tears or punctures that had been botched or ignored before the retailer sold them to us, posing as drivers wanting a cheap tyre to get our car through its MoT.

In some cases our stooge was a family man; in others we used a younger man posing as a cash-strapped student. But age and family status were clearly no bar to selling dangerous, illegal tyres. One of our tyres was a death trap. Ted pointed out a rusty nail, which was quite clearly sticking 5cm through the inside of its sidewall. “That could kill you,” he warned. “No doubt about it.”

Our sample also included illegal, unplugged punctures, patched on the inside. Ted compared these to open wounds. “There’s steel wire running through,” he said. “It’s like bones in a skeleton. If the protective layer of waterproof rubber is compromised, this metal will be exposed, rust and perish from the inside. This one looks like it’s been fixed with a bicycle puncture repair kit.”

So how are part-worn tyre retailers able to operate without detection or penalty? eBay didn’t seem interested in the vendors selling part-worns via its site. We sourced half of our sample from such sellers, but eBay refused to comment when we approached it.

The Office of Fair Trading couldn’t help, either, even though consumer protection is one of its remits. It suggested we contact Trading Standards, which is responsible for policing these dubious sales practices at a local authority level. But an online search for regional clampdowns revealed little, if any, action.

So these retailers are left largely unchecked, even though they face fines of up to £5,000 for flouting rules on part-worn tyres. TyreSafe chairman Stuart Jackson said: “Although a number of clear regulations exist which permit the sale of part-worn tyres, our investigation makes it obvious these are not being adhered to.”

He demanded that Trading Standards act “as a matter of urgency”. But Trading Standards may have missed the boat, claims the Tyre Industry Federation (TIF) – an independent body tasked with lobbying Government on unsafe practice in this market. It says the Department for Transport (DfT) is about to take full responsibility for all tyre regulations, including part-worns, and is appointing an agency as early as next month to enforce them. The legislation is being reviewed and tightened in preparation for this, too.

TIF chief Graham Wilson told us this would be a wake-up call to rogue traders. “The DfT will want the agency it appoints to commit to a certain level of enforcement. It will want to know how many site visits and how much mystery shopping are planned.”

Taking a gamble on a part-worn tyre is a risk that doesn’t necessarily pay off, either. We measured the tread depth of our sample tyres and compared them to the price paid to calculate a pence-per-millimetre tread figure. We then did the same for a brand new tyre of the same size, with the maximum 8mm tread depth, using an average quoted new tyre price. Surprisingly, in more than half the sizes we examined, it was better value to buy brand new tyres.

This rang true for one self-confessed part-worn tyre buyer. Colin Smith, of Wolverhampton, W Mids, told us that a cheap set he bought for his Vauxhall Calibra “lasted only 500 miles”.

“On closer inspection, I realised what a big mistake I’d made,” he said. “The tread was uneven; one showed heavy wear in the centre and the other was worn on the outsides. The previous owner clearly hadn’t run them at the right pressure.” Colin added there was a cut in the tyre sidewall, too – enough to bring an MoT failure, or three points on your licence and a fine.

But when he swapped them for another used set, he didn’t fare much better. “These didn’t hold their pressure,” he said. It turned out paint on the rim had stopped the tyre from sealing properly. A clean solved this, but Colin is still disillusioned by part-worns.

“My Vauxhall Astra Coupe has always had new tyres. Its original set lasted nine years and 55,000 miles,” he said. “So you get what you pay for.” That’s something all drivers would do well to bear in mind before they shell out on a set of potentially lethal part-worns.

Visit www.tyresafe.org for advice on part-worn tyres.

Average part-worn vs new tyre costs

Part-worn New Tyre size Tread Price Cost per mm** Price Cost per mm** 165/70 R14 3.84mm £20.00 £8.93 £30.60 £3.99 165/65 R14 5.17mm £40.00 £11.20 £30.31 £4.12 175/65 R14 4.90mm £24.67 £7.47 £30.22 £4.29 195/50 R15 5.17mm £25.00 £7.00 £32.69 £4.72 175/65 R15 4.25mm £22.50 £8.48 £37.37 £7.74 205/50 R16 3.95mm £18.33 £7.81 £41.36 £4.78 205/55 R16 4.00mm £43.10 £17.96 £37.72 £4.81 195/55 R15 5.42mm £23.00 £6.02 £39.82 £4.99 185/60 R14 5.17mm £14.75 £4.13 £31.96 £5.11 175/65 R16 4.50mm £20.00 £6.90 £95.52 £5.84 155/70 R13 5.06mm £9.14 £2.64 £26.36 £5.89 165/80 R13 5.00mm £13.75 £4.04 £27.44 £6.22 165/65 R13 4.50mm £10.99 £3.79 £25.54 £6.46 155/65 R14 4.84mm £20.00 £6.17 £30.78 £14.93

*To legal limit. **To legal limit, based on tread depth of 8mm.

 

Part Worn Tyre Scandal | Why Shouldn't You Buy Part Worn Tyres?

Think you're getting a bargain with a discounted part-worn tyre? Think again, as we expose the shock state of some of the tyres on sale. Yes, they're usually dirt-cheap – four new tyres can cost anything up to £1,000 and above, so it's hardly surprising that motorists buy an estimated four million part-worn tyres every year, cutting this bill in half on average.

Bargain, surely? Apparently not.

Auto Express joined forces with campaign group TyreSafe to investigate the sale and condition of these cut-price, part-worn tyres in the UK, and were horrified by what they found.

For more information on the work done between TyreSafe and Auto Express, click here.

You can also visit the TyreSafe website by clicking here, they're a profitless organisation, offering tips and advice on how to keep your vehicle road legal and safe out there!

If you do the maths, part worn tyres can often be MORE expensive than brand new tyres! For example, a 175/65R16 tyre fitted part worn for £20.00 with 4.5mm of tread would work out at £6.90 per mm (based on reaching the legal limit of 1.6mm). Whereas the same tyre bought new with 8mm of tread on for £95.52 would work out at £5.84 per mm of tread if worn to the legal limit.

As well as not being cost efficient, they're extremely unsafe! The main reasons for part worn tyres entering the UK market is from overseas vehicles, accidents or theft. Nobody gets rid of a perfectly good tyre without a serious reason! You wouldn't wear someone else's used underwear, so don't put their tyres on your car!

Remember, your tyres are the ONLY point of contact your vehicle has with the road surface, don't make compromises.

hometyrevan

If you'd like to book an appointment to have brand new tyres fitted to your vehicle at a location of your choice – call us today!

0333 444 5454

Or

ORDER TYRES ONLINE

 

National Motorhome Show - Peterborough

Hometyre turned up in force to support the National Motorhome show in Peterborough last weekend. Unfortunately the weather did its best to ruin the weekend, and we had rain most days, with many Motorhomes having to be towed out of their pitches. The rain didn't dampen the Hometyre spirit, we we were still seen around the site fitting tyres, tyron bands and TPMS systems (as well as removing locking wheel nuts for a day visitor). When not working we had a "Hometyre Convoy" around the site, which kept the visitors amused, and brought us a lot of attention. Looking forward to next year, and hope the weather improves.

 

German researchers develop an "Adaptive Tyre"

Are you fed up of having to change your summer tyres for winter tyres at the first sign of snow? Or of being caught out on a long car journey by sudden changes in the weather?

That may soon be a thing of the past, according to a group of researchers at Leipzig university, who are developing the world's first-ever "intelligent" tyre which automatically adapts itself to the prevailing weather conditions even while you are driving.

A team of researchers headed by Detlef Riemer at the University of Applied Sciences in Leipzig unveiled the "adaptive tyre" at this year's Hanover Fair, the world's biggest industrial fair taking place in the north German city this week.

"Today's choice of tyres are always a compromise between the ability to brake and petrol consumption," Riemer said.

"The car driver has to take into consideration every sort of weather condition and you can't change tyres while you're driving."

But Riemer's "adaptive tyre" is equipped with electronic sensors which recognise different sorts of terrain -- whether motorway or un-tarmacked roads -- and whether it's dry, raining or snowing.

And accordingly, the tyres' profiles are automatically raised or widened accordingly, even when the car is in motion.

"That means your car is always equipped with the best possible tyre and noise and petrol consumption are automatically optimised, too," Riemer enthused.

"The driver no longer has to think about adapting their tyres. The tyre itself 'thinks' too."

The tyre is still a long way from a finished product and research is still ongoing, notably on the materials that can be used for the moveable parts of the tyre's profiles.

"But we've patented it already, just in case," Riemer said.

 

Twitter

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Michelin tyres

The History and Story Behind Michelin Tyres The story of how two brothers came up with the idea for removable pneumatic tyres is fascinating. It is sometimes the case when one simple thing happens that then leads on to bigger things, and this is so true of how Michelin tyres came into being. The two brothers were Edouard and Andrė Michelin and they lived in Clermond-Ferrand where they ran a rubber factory.

One day the two brothers were asked by a passing cyclist to repair a punctured tyre. They discovered that this was actually glued to the rim of the bike wheel. Not being put off by this fact, they removed the tyre, which took over three hours to do and then proceeded to repair it. This of course, then had to be re-glued to the rim and then left for the night in order for the glue to dry. The next day Edouard Michelin decided to give the bike with it’s repaired tyre a test run, unfortunately the tyre did not hold up for more than a few hundred metres. But this whole episode had so intrigued Edouard and his brother, that they set about finding a way to fix tyres to rims without the need for any glue. This was to be the grand beginnings of the Michelin tyre era.

In 1891, the brothers took out their first patent for pneumatic tyres that could be easily taken off rims and the long distance cyclist Charles Terront was the first person to use this type of tyre when he competed in the Paris-Brest-Paris cycle race of the same year.

Over the next few decades, the Michelin brothers made many innovations to tyres and all were met with a great amount of success. One of these innovations was the radial tyre which back in those days was called the ‘X’ tyre. Together with Citroen and their ‘traction avant’ and the 2CV very much in mind this tyre was developed and then used on these vehicles. Michelin had previously purchased the Citroen operation in the thirties when the company had been declared bankrupt. The amazing thing is that this same tyre is still available for the 2CV in these modern times.

During the 20s and the 30s, the Michelin company ran many rubber plantations in Vietnam but their employees were very poorly treated which led to the now very famous labour movement called Phu Rieng Do. The conditions the workers were expected to live and work in were described by some as being ‘hell on earth’ with workers dying in great numbers, no one will ever really be know how many workers died during this period as records were falsified. But this was all soon to come to a head with a rebellion of 5,000 workers stopping the production of rubber for four whole days. This was the first labour movement directed by the Vietnamese Communists.

As early as 1934, Michelin had invented a tyre that would still run even if it was punctured. This tyre had a foam lining and was called a run-flat tyre or self-supporting tyre. The company went from strength to strength and in 1988, Michelin bought the tyre and rubber divisions of the B F Goodrich Company, an American tyre company that had been founded back in 1870. This acquisition included part of the company which supplied tyres to the Space Shuttle program. Then two years later, Michelin also purchased Uniroyal, Inc, another old established Australian company. Since then the company has just got bigger and bigger throughout the entire world.

 

Michelin tyres win Which? green award

Which? magazine has awarded a 'Best Buy' certificate to an eco-friendly car tyre designed by French manufacturer Michelin.

The firm's Energy Saver wheel was given the accolade following a test of summer tyres by the consumer campaign group.

Results of the trial were published in the magazine's April issue, and overall it found that the 65/70 R14 T tyres performed best in categories such as wet and dry handling and braking, wear and external drive-by noise.

It is the company's fourth version of environmentally friendly tyres. It has been structured and designed to enhance fuel consumption which in turn decreases the amount of CO2 emissions into the atmosphere.

Steve Dolby, Michelin's product marketing manager, said it was a great result for the firm and "emphasises the Balance of Performance philosophy" that they include in their tyre designs. He went on to explain that it means "no one area of performance should negatively affect another".

"It is also interesting that the Which? test focused on criteria that will appear on tyre labels when the legislation comes into effect later this year. This should help consumers make more informed decisions when purchasing tyres, based on important considerations like safety and the environment," he added.

 

Michelin energy saver is Which? best buy

According to honest John of the Telegraph the Michelin Energy Saver have been voted the Which? magazine best buy.. See full story below.

Michelin Energy Saver Tyre is 'Which?' Best Buy also Michelin Alpin 4 Judged Best Cold Weather Tyre by Which

Honest John Fri, 13 Apr 2012 Michelin's Energy Saver tyre has been assessed as ‘Best Buy’ in independent summer tyre tests by 'Which?' magazine.

The test of 165/70 R 14 T tyres, for the April issue of 'Which?' magazine, rated summer tyres in all main areas of performance including wet and dry handling and braking, external drive-by noise, fuel consumption and wear.

The Michelin Energy Saver is the Company’s fourth generation of “green” car tyres which replaced the previous Energy range and is designed to improve fuel consumption, and thus reduce CO2 emissions, by reducing rolling resistance.

Due to Michelin’s focus on ‘Balance of Performance’, the low rolling resistance performance of the Energy Saver does not come at the cost of performance in other important areas like safety, handling and driver comfort.

Steve Dolby, Michelin’s product marketing manager commented: "It is interesting that the Which? test focussed on criteria that will appear on tyre labels when the legislation comes into effect later this year. This should help consumers make more informed decisions when purchasing tyres, based on important considerations like safety and the environment’.

The Michelin Energy Saver is designed to equip a wide range of cars in the market – including city cars, family cars, and MPVs. The range covers tyre sizes from 14” to 16” with speed symbols of T, H and V.

HJ's own FIAT 500 is on 185/55 R 15 Michelin Energy Savers, which currently show very little sign of wear after 13,000 miles on the car.

 

Tyron bands incorrectly fitted

I have just been out to change the tyres on a caravan that has tyron bands previously fitted by one of the larger fast fit Tyre depots. It looks like they had not known what they were doing, as they were fitted upside down. What is the point of fitting a safety device, if the fitter does not know what he is doing and fits it incorrectly! Should you have tyron bands fitted or are considering having them fitted, then give us a call at Hometyre, we are recommended by Tyron UK, and have been trained by them.

 

Tyron bands fitted upside down by local dealer.

Called out to change the tyres on a caravan this week, it was already fitted with Tyron bands. When I took the old one off, I saw that they had been fitted upside down by the previous fitter. That is why you should choose Hometyre, we have been taught how to fit them correctly. Why pay for this safety item, then have it fitted by someone who is incompetent?

 

April fools

Need Tyres fitted at your choice of place and at a time YOU choose? Then call Hometyre, this is not an April fools day trick, we do as we say. Give us a call to see what we can do for you.

 

Save fuel ~ check your tyre pressures

After fitting tyres to customers cars, we also check their other tyres and correct the air pressures accordingly. It is amazing how many people do not check their tyres on a regular basis. I often find tyres at around 5 to 10 PSI below the required pressures. This is costing you fuel as well as damaging your tyres and effecting your vehicles handling. Checking tyres is especially important as we approach the Easter holidays. With families going away, having the correct air pressure is particularly critical because of the increased vehicle weight from a full car. Therefore, vehicles may need to have their tyres inflated to a higher pressure to stay safe.

One of the reasons for so many under-inflated tyres nowadays may be that you can no longer see that tyres are going soft. In the days of tall tyres with a width to height ratio of 70 or 80 (e.g. 135/80x13), a soft tyre would visibly sag. With today's stiff, low profile tyres (e.g. 205/55x16), the presssure has to be close to zero before any difference is visible. The days of kicking a tyre to tell if it is OK are long gone. The best idea it to get your own digital air gauge and check your tyres monthly.

 

Caravan tyre safety

The latest news from Tyresafe Uk. As Easter and a spate of Bank Holidays loom large on the horizon, TyreSafe is advising caravan owners to give their tyres a full ‘health check’ to avoid possible motoring misery.

While tyre safety is important for all vehicles, caravan tyres, and those on trailer tents or motorhomes, which might have been left to stand outside over the winter and are not used that often, are especially at risk from rubber degradation.

This is because harmful UV rays can penetrate tyres, attacking the rubber ingredients that give resilience and flexibility. The result, particularly for under-inflated tyres, can be a terrifying high speed blow-out.

Stuart Jackson, chairman, TyreSafe, explains: “Exposure to the elements for long periods without movement can be a real cause of rubber damage to caravan tyres, often seen by cracking or a drop in pressure. Therefore it’s vital to ensure that the tyres are properly inspected before use and correctly maintained.”

TyreSafe recommends that tyres should ideally be checked by a professional but anyone inspecting the tyres themselves should pay particular attention to the tread and sidewall areas. Any sign of cracking should result in the motorist seeking professional advice or replacing the tyre.

If a foreign object is found embedded in the tyre then it should also be removed. Owners should also look for any damage in the tyre such as bulges, cuts or lumps.

“With the correct care and attention your tyres will help to ensure you arrive safely at your holiday destination safely, without disruption and with minimal cost,” added Jackson.

TyreSafe has a dedicated caravan tyre section on its website, www.tyresafe.org, which is full of important tyre safety advice, information and tips.

Notes TyreSafe is a not-for-profit organisation dedicated to raising awareness about the importance of correct tyre maintenance and the dangers of defective and worn tyres.

In 2009, TyreSafe was awarded with the Prince Michael International Road Safety Award in recognition of its achievements in raising awareness about the dangers associated with driving on defective and worn tyres.

TyreSafe supports the government’s ACT ON CO2 campaign which promotes Smarter Driving tips to help cut CO2 emissions from driving.

TyreSafe is a signatory to the European Road Safety Charter which aims to reduce road fatalities.

TyreSafe is a supporter of the UN Decade of Action for Road Safety which aims to make roads safer and save lives

 

Caravanners, now is the time to check your tyres

This is the latest news from Tyresafe UK. As Easter and a spate of Bank Holidays loom large on the horizon, TyreSafe is advising caravan owners to give their tyres a full ‘health check’ to avoid possible motoring misery.

While tyre safety is important for all vehicles, caravan tyres, and those on trailer tents or motorhomes, which might have been left to stand outside over the winter and are not used that often, are especially at risk from rubber degradation.

This is because harmful UV rays can penetrate tyres, attacking the rubber ingredients that give resilience and flexibility. The result, particularly for under-inflated tyres, can be a terrifying high speed blow-out.

Stuart Jackson, chairman, TyreSafe, explains: “Exposure to the elements for long periods without movement can be a real cause of rubber damage to caravan tyres, often seen by cracking or a drop in pressure. Therefore it’s vital to ensure that the tyres are properly inspected before use and correctly maintained.”

TyreSafe recommends that tyres should ideally be checked by a professional but anyone inspecting the tyres themselves should pay particular attention to the tread and sidewall areas. Any sign of cracking should result in the motorist seeking professional advice or replacing the tyre.

If a foreign object is found embedded in the tyre then it should also be removed. Owners should also look for any damage in the tyre such as bulges, cuts or lumps.

“With the correct care and attention your tyres will help to ensure you arrive safely at your holiday destination safely, without disruption and with minimal cost,” added Jackson.

TyreSafe has a dedicated caravan tyre section on its website, www.tyresafe.org, which is full of important tyre safety advice, information and tips.

Notes TyreSafe is a not-for-profit organisation dedicated to raising awareness about the importance of correct tyre maintenance and the dangers of defective and worn tyres.

In 2009, TyreSafe was awarded with the Prince Michael International Road Safety Award in recognition of its achievements in raising awareness about the dangers associated with driving on defective and worn tyres.

TyreSafe supports the government’s ACT ON CO2 campaign which promotes Smarter Driving tips to help cut CO2 emissions from driving.

TyreSafe is a signatory to the European Road Safety Charter which aims to reduce road fatalities.

TyreSafe is a supporter of the UN Decade of Action for Road Safety which aims to make roads safer and save lives

 

Caravan tyres

Hometyre will be on display at the National Motorhome show the April. This is the largest motorhome show in the UK and it will be held in Peterbourough from the 27th to the 29th April 2012. If you are planning to visit the show, please make time to call at the Hometyre stand to see what we can do for you.

 

Why tubeless tyres became more popular than tubed tyres

As the name suggests tube-type tyres consist of a tube which is placed between the tyre and the wheel rim. The tube inside the tyre is filled with air and inflated to allow tyres to support a vehicle’s weight and maintain the shape of a tyre. Tube-type tyres were used for many years by all types of vehicles with pneumatic tyres before the tubeless tyre was created. However, various drawbacks of a tube inside a tyre caused the tubeless tyre to become preferred over the tube-type tyre. The tube inside a tyre is in constant motion when the tyre is rotating. This causes friction inside a tyre and adds a few grams of weight on each wheel of a vehicle thereby adding to the unsprung weight of a vehicle, which adversely effects fuel economy and ride and handling. The air inside tube-type tyres escapes very easily because the moment an object punctures the tyre, the intrusion will stay on the same place on the tyre, but the tube will keep moving inside the tyre causing the tube to tear, resulting in the air escaping very quickly. At high speeds this can be fatal as it can lead to high speed blowouts, in which case a sudden sharp penetration at high speed causes the tube to burst. The air expelled at high pressure from the tube forces its way out of the tyre from around the rim and the tube valve hole. The pressure exerted by this escaping air can be strong enough to rip open the tyre. A burst tyre causes sudden loss in road contact between the car and the road which is sufficient to throw a vehicle off course violently. In case of a puncture on a tube-type tyre the tube can be patched up or replaced depending on the damage caused by the puncture. Tubeless tyres as the name suggests have no tube between the tyre and the wheel rim to hold air inside a tyre. Instead the inner wall of a tubeless tyre is lined with an impermeable membrane composed of materials like halo butyl or chloro butyl to make a tyre airtight. As a result, the tyre itself can be filled with air to support a vehicle’s weight instead of having to contain air inside a tube within a tyre. Tubeless tyres are lighter than tube type tyres by a few hundred grams, this reduces the unsprung weight of a vehicle resulting in better fuel economy and ride and handling. In case of a puncture in tubeless tyres it takes much longer for air to escape from the tyre as the hole is blocked by the object that has caused the puncture. This negates chances of a high speed blow out. Also, the driver will not feel any difference after a puncture as very little air will escape. Usually, punctures on tubeless tyres are noticed after a vehicle comes to a halt, as the air will escape faster under constant pressure from the weight of the vehicle and the tyre will lose all the air in it. These drawbacks of tube-type tyres have caused vehicle manufacturers to switch to tubeless tyres for their vehicles considering safety, fuel economy, drive dynamics and reduced chances of tyre punctures. In case of a puncture on a tubeless tyre a repair using a mushroom shaped patch can be inserted and glued from inside the tyre to hold the air in place forming a repair that should last the life of the tyre.

 

Michelin to Sponsor the Goodwood Festival of Speed 2012.

Michelin to sponsor Goodwood Festival of Speed As well as his press day duties, Bibendum will meet and greet throughout the event The Goodwood Festival of Speed, billed as “world’s greatest celebration of car culture”, takes place this year between 29 June and 1 July. The event is sponsored by a roll call of the world’s most prominent vehicle manufacturers, and Michelin has also announced its sponsorship of the event. As well as maintaining a stand at the Festival of Speed, the tyre maker will also sponsor the Supercar Paddock and Supercar Run to highlight its links with manufacturers of some of the world’s fastest cars.

The Michelin stand at the Festival of Speed will feature a number of high performance cars and motorcycles, as well as a Le Mans wheel change challenge that will give visitors a chance to win prizes by setting the fastest times of the day and weekend. There will also be a display highlighting Michelin’s motorsport involvement – past and present. The stand will also showcase some of Michelin’s newest products, including its latest generation Energy Saver and the recently launched Pilot Alpin and Latitude Alpin cold weather tyres. Detailed information clearly explaining the imminent tyre labelling legislation will also form part of the display – Michelin says it hopes this will help consumers see that choosing tyres can be as straightforward as choosing a fridge.

The Supercar Paddock will be home to a display of Michelin’s range of high performance tyres, including the Pilot Super Sport, which is original equipment on cars including Ferrari’s 458 Italia, FF, 599 GTO and F12berlinetta, the Gumpert Apollo R and the Koenigsegg Agera R.

Making numerous appearances throughout the weekend, Bibendum the Michelin Man will be available to meet visitors and pose for photographs with his fans. And although the event is still three months away, Bib’s duties begin today – at the 14 March press day, he will make a guest appearance to wave the supercars away for the first batch of runs on the day.

 

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