Posts Tagged ‘PART’

Winter tyres

The ordinary tyres when compared to winter tyres fail in situations where the car is held up in a driveway filled with snow. Winter tyres on the other hand transform the car and make them usable even in extreme conditions such as sleet, rain, snow, dry, slush, up hill and down dale.
One should never take liberties with the functioning of tyres. While driving on black ice the safety is of utmost importance and since in UK it almost snows for the most part of the year the need for finding a winter tyre increases even more. Taking this fact into consideration the tyre manufacturers in UK have started making extra tyres but over the past few years the demand has far exceeded the supply.

Vredestein Tyres – A good winter and summer tyres

Winter season is not only the time of the year wherein you are about to go out to create your frosty snowman instead it is the season where you are going to change your car’s gears particularly the tyres. In the northern or mountainous region of Europe, locals are actually required to fit winter tyres, in fact, their law state that tyres must be changed every 10 years however, it was changed into 6 years to ensure your safety. Vredestein brand will always be the usual mention among locals. Vredestein winter tyres’ design cuts through snow and into ice to give a far greater margin of safety than with normal tyres. It can supply a large range of Vredesten summer, winter or all season tyres made for a wide range of vehicles, from cars, vans to motorbikes. Unlike those summer-spec tyre which is less able to adapt to the contour of the road surface reducing its grip levels. Winter 4 Xtreme, Showtrac and Showtracs 3 , 2 are just few of the ranges included in a Vredestein winter tyres which gives off a high quality, fantastic stability and grip. One tyre with its outstanding scores on wet and snowy surfaces such as the Vredestein Quatrac 3. It is a balanced and versatile tyre with perfect steering and handling coupled with a short braking distance on both wet and snowy surfaces. It is completely the optimal alternative for those who wants to use a single type of tyre for both summer and winter seasons instead buying two different models which could be more expensive.

If you wish to have tyres with a very good steering and handling characteristics, you can experience it with Vredestein Ultrac since it has been its strong points. The tread construction, shape and contours are optimised for every size and offers a maximum design quality. While Vredestein Sportrac 3 has its rounded footprint with its even surface which helps braking distance and improve traction, superb handling and water dispersion. Vredestein Ricorso tyres,on the other hand, are marketed and designed for training or racing. An affordable performance tire with excellent ride characteristics especially ideal for recreational use because of its comfortable touring and training tyres.

Of course, the difference between summer and winter tyres are even greater. There are more influences and factors that are in need for consideration. One thing is the pressure. Winter tyres are recommended to have inflated to a slightly higher pressures than the summer tyres so that it won’t heat up as much as the cold weather. Another thing that would affect its performance is the tread. As the tyre’s tread aged, it becomes less supple and less grippy. That’s the reason why there’s a need to change tyres once in awhile. However, Vredestein tyres are just the brand that you’re looking for, imagine this tyre is often used for all-season, whether its for summer or winter days. It might not be as good as those summer tyres, but it definitely has a big impact on longevity and performance on wet and dry roads.

Legalities of tyres

There are two options either to pay a fine for making use of illegal tyres or pay out for the tyres so that they are safe and legal. The law is in place, which has certain guidelines that everyone has to comply with in relation to their car tyres.

The driving of damaged or worn out tyres can result in the fine or result in
MOT failure. It may even affect the insurance policy of the car as well. The legal issues need to be resolved but the most important thing is to stop using the damaged or worn out tyres as they endanger the lives of its users.

The car has to be maintained at peak performances and the easiest way is to maintain proper tyres by regularly keeping a check on formation of lumps or bumps or any kind of wear and tear that occur due to the separation or partial structural failure.

The cut or tear should not exceed the length of 25mm or 10 % of the tyre’s width else the tyre needs to be replaced with a functional one as deep cuts may cause damage to the tyre’s inner cords. The tyre’s internal plies should be protected from outside exposures. And any tyre that is being fitted to the vehicle should be compatible with tyres of other wheels. One should ensure that the tyre used in the car or trailer is of permissible standards and doesn’t cause damage to the road as well as its passengers.

The legal tyre maintenance suggests that all car tyres ought to be puffed up to accurate air demands as per the recommendation of car manufacturer or tyre manufacturer. Some tyres require to be maintained at partially inflated state.

The officially permitted tread deepness of 1.6mm is the minimum requirement for car tyres. This tread depth should be throughout a continuous band in the center ¾ of the tread and around the entire circumference. The said tread depth is mandatory and the minimum legal requirement wherein the original tread pattern must be visible as well.

Carrying of spare tyres is neither mandatory nor having a spare tyre is illegal. But the spare tyres should always comply with the legal standards.

The biggest risk of making use of damaged tyres in cars or trailers is that they are a dangerous proposition for the passengers within the vehicle as well as other people and vehicles on the road. The use of illegal or damaged tyres is punishable under the law.

The traffic police can issue Fixed Penalty notices to such offenders. In case the offenders don’t comply with the charges they can be prosecuted and even arrested. The legal notices are issued in the name of driver as well as the owner, incase he/she not the same person.

A court can compel fines up to a maximum of $2,500 and three penalty points. If a car has added flawed tyre, a directive can be issued for each prohibited tyre.

Certain circumstances require total disqualification.

Effects of pressure variances in tyres

Since the day the tyre was invented or more precisely rediscovered as in way the tyre is simply a wheel that has been remodeled to adhere to the modern means of transports. The tyre that is being used today has undergone a lot of changes from the time they were introduced for the first time. The scientific growth aided by technological developments has blended with growing needs of the customer to improve the performances of tyres manifolds.

The following are the areas, which get affected due to pressure variances in the tyres:

 Braking distances
 Fuel economy
 Gripping on the road in normal conditions and on bends
 Wet weather driving conditions

Tyres that are either balding or have been improperly inflated tend to reduce the grip of the wheels on the surface of the roads. The tyres tend to buckle slightly out of shape due to the application of wrong pressure and this may result in the vehicle to become unbalanced and harder braking could lead to tilting of the vehicle to a particular side.

Lower tyre pressures lead to the use of extra force for physically moving the car and this cause more fuel to be burned to keep the car moving. For shorter distances this is not a big issue but incase one is on long drive the prospect of burning more fuel is a nightmare as one has to pay for the petrol and it is a matter of concern.

The gripping of tyres under normal circumstances is greatly reduced due to presence of less air pressure in tyres. The risk is increased in bends as this may escort to deadly penalty. The lack of pressure in tyres causes the tyre to be pushed at a greater angle then they should actually be moving to. The entire scenario is that the area of tread is off the road slightly on one side and bottom of the sidewall is being used as exterior tyre on the supplementary. The loss in grip will considerably reduce the steer of the vehicle.

And finally the wet weather conditions are too harsh and require the tyres to be in perfect condition. Any sort of air pressure variances in the tyres can cause lot of damages. The tyres are provided with tread pattern to move the water away from under the front of the tyre to its sides without it having to go underneath.

If the tyre has water underneath it the surface of the tyre losses contact with the road and this phenomenon is called aquaplaning. Lower air pressures in tyre reduce the effect of treads and the tyres have a greater tendency for to lose grip in wet weather.
Aquaplaning is a severe consequence where the tyre has no grip on the road surface and the minimization of this phenomenon is key to safety. Tyres are provided with treads for negating the effect of aquaplaning but overused tyres or balding tyres tend to have less treads leading to loss of grip in wet road surfaces.

Disposal of used tyres

It is a huge challenge for the automobile industry to be in compliance with the legislations of environmental protection by safe disposal of tyres. The power rests on the Department of Environment and Resource management.

According to the Environmental Protection Regulation 2008 businesses carrying out activities such as storing of tyres or recycling of tyres that is an environmental relevant activity (ERA) have to to acquire a progress sanction and a registration certificate. The certifications are ERA 56 for storage of tyres and ERA 59 for the recycling of tyres. In addition to this the reaching of threshold limits attracts an annual fee that is calculated on the basis of aggregate environmental scores (AES) for apiece ERA.

At present the threshold limit for storing tyres is fixed at 5 tonnes or not more than 500 tyres or part of tyres. ERA 56 certification is required for exceeding this limit. The regulatory and administrative authority was formerly called as the Environmental Protection Agency and has been newly named as Department of Environment and Resource Management or DERM.

The tyre recyling units operating a facility on a commercial basis come under the ERA 59 and recyling or receiving and reprocessing of 1000 or equivalent units of tyres is the threshold limit. Hence it doesn’t attract an AES but the obtaining of DERM permit is essential. The said activity is exclusive of retreading tyres.

The Beenleigh tyre dealer was reprimanded by the Chief Executive of DERM for violating the environmental protection order and failing to remove excess stockpiles of tyres at its various properties. The Brisbane Planning and Environment Court gave the verdict stating that Section 360 of Environmental Protection Act 1994 was violated and action has to be taken against the tyre dealer. The Beenleigh Magistrates Court fined the tyre dealer a sum of $85000.

For the unlawful management of waste tyres the Environmental Protection Order was issued to the tyre dealer. The main concern of DERM was that the stockpiles of thousands of tyres were an environmental hazard, and the possibility of a fire hazard can’t be ruled out as well. Plus the area had turned into a reproduction land for insects, particularly mosquitoes. Such illegal stockpiles of tyres results in various hazards such as a risk to public health and those matters come under the Public Health Act 2005.

It is the duty of individuals to have a commitment towards their environment. Section 319 of the Environmental Protection Act 1994 highlights this issue. All the persons have moral responsibility to not carry out certain activities, which may cause harm to the environment. Until and unless the person takes all reasonable and practicable measures to minimize or prevent the harm they should not rest. The case in point revealed that the tyre dealer had failed to comply with such a duty and further he was storing tyres without a registration certificate or a development permit.
DERM was first made aware of the stockpiles of tyres from neighbors of the tyre dealer and this should serve as a cautionary tale to any of you who believe that a pile of tyres hidden behind a building are away from the public eye and scrutiny from DERM
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Goodyear eagle F1 tyres

Riding high on the success of its predecessors the Goodyear eagle asymmetric 2 with active braking technology was launched. It passed the various tests of crossed pile carcass structures and high surface silica tread compound and thus have set new standards in the wet and dry performances while taking care of the handling and braking in the ultra high performance tyre segment.

The new Eagle F1 Asymmetric 2 is known for improved dry performance handling and steering precision with exceptional braking capacities due to the features of a crossed plies carcass structure, which contributes to increased torsion tautness for enhanced navigation accuracy, usage and braking on dry road surfaces. The new tread compound, which contains very high levels of a new Silica grade is responsible for delivering superior grip levels that leads to better outcomes in dry handling and dry braking performances. The dry handling is attributed to the lower tyre weight as well since the vehicle’s overall mass is significantly reduced, enabling the tyre to pursue the surface contours additional closely.

The Short braking on wet roads are achieved through the use of Active Braking Technology, the new tread compound, using a unique blend of elevated molecular mass polymers, a extremely elevated silica content and race grip resin bring augmented levels of union on damp street surfaces

During the process of applying the brakes the Asymmetric 2 increases the road contact patch and results in shorter stopping distances. The conventional tyres blocks on the other hand demonstrate slight or no alteration during braking. In this aspect the Goodyear Eagle F1 tyres built on Asymmetric 2 design are able to develop more surface under braking load and thereby increasing the tyre to surface contact area. The larger is the contact path offered the grip is enhanced and in turn result in better stopping.

The engineers at Goodyear have paid attention to these three areas:

• Minimizing the tyre weight with less rubber and an optimizing tyre construction for reducing the heat generated and minimize rolling resistance.
• Introduction of a new ‘high surface’ silica grade which contributes in reducing the heat generated.
• The aerodynamic sidewall design is also being upgraded, which will deliver significantly lower aerodynamic drag and thus minimize energy losses, particularly at higher speeds.

The Goodyear tyres are known for lower noise emission levels. The Eagle F1 Asymmetric 2 is one such tyre that offers a smooth and quiet ride. The optimized block design of the tyre plus optimized 4 Pitches series with 64 blocks on the exterior and 72 blocks on the inside are responsible for the reduction of noise output levels.

The Goodyear tyres are also responsible for better mileages as well. The tyre’s make use of computer optimized cavity shape and tread rigidity result in consistent pressure and firmness distribution across the footprint, results in better mileage levels.
The reduction in fuel consumption and CO2 emissions are also the features of these tyres which make them unique as the new Eagle F1 Asymmetric 2 makes use of Goodyear’s renowned Fuel economy Technology, which ensures lower fuel utilization and CO2 emissions.

Dunlop tyres

Dunlop motorcycle tyres were the most popular ones at one time. The D207 was one of the largest selling sports tyres and subsequently the D208 tyre was also launched. An experienced journalist based in UK gave some comments, which led to a furor and created confusion in the perception of people. The D207 and D208 were not able to attain the success they had set out to achieve. The reasons for the failure can be attributed to the OE-spec D207 and D208 tyres, which were fitted on some of the Japanese sports bikes at that point of time.

The OE-spec tyres differ considerably from the replacement tyres in the aspect that the bike manufacturers tend to ignore the caution when stipulating the performance and instead build the tyres designed for specific bikes. The Stability is increased but at the cost of some agility. Even the outright grip may be compromised with, to achieve the mileages wanted by the manufacturer.

Bike manufacturers submit their bikes to the magazines for testing in 100% OE conditions which means the sooner the journalists are able to pick the difference basing on their performances they are more likely to be able comment on it and write articles on them. The comments are usually specific to on track riding and are never on on-road riding. The public develops an opinion after reading the articles and may not be completely aware of the actual features. The simple process of developing a negative opinion can cause lot of after effects and it may become a widely perceived opinion. The particular thing happened in case of all D207s as a general perception of them being average tyres got lot of negative publicity.

But the same tyre is now widely considered to be the best among the equals and in class with the Michelin Pilot Power 2CT. The use of Dunlop’s Muti-Tread compound technology lends it an edge as Dunlop can deliver a tyre that achieves both higher mileages and higher levels of grip. The different silica in the central and side compounds used by Dunlop tunes the tyre to improve the wet grip while not sacrificing dry grip.

The Dunlop Qualifier RR is full of features that one admires and has qualities that are desired from a super sport road tyre that gets used rarely on track. The technology of triple compound increases the miles, the softer compound give the edge while the grip and the carcass let the tyre to handle changes in temperature very quickly.

The Dunlop tyres have been invariably developed and employed in bikes used for British Super sport races. The 209GP race tyres are the ones, which have won the admiration and have been in use in the racing circuit for a while now. The specialty of these tyres is that they lend the bikes balance and help them from going off track.

The Dunlop may not be considered as a reputed company anymore in the present scenario. But the new ranges of tyres are already leading the pack and it won’t be long before they regain their status of being world class.