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Concept tyre is made from recycled PET bottles, vegetable oils

8th September 2021
"The weight of the Conti GreenConcept tyre has been significantly reduced lower rolling resistance helps extend the range of electric vehicles by up to 6 per cent."

Continental AG is showcasing its sustainable tyre concept - the Conti GreenConcept - at the 2021 Munich auto show. The concept tyre is made up of more than 50 per cent of traceable, renewable and recycled materials. The sustainable tyre is touted to be a lightweight technology, ensuring an extended service life.

Conti Green tyre

The proportion of recycled materials used in the Conti GreenConcept tyre stands at 17 per cent. Apart from processed steel and carbon black, Continental has used polyester from recycled PET bottles in the casing of a tyre for the first time ever.

The natural elements used to achieve this proportion include natural rubber from dandelions, silicate from the ashes of rice husks, and various vegetable oils and resins. These materials significantly reduce the amount of crude oil-based materials in the tyre.

The weight of the Conti GreenConcept tyre has been significantly reduced too along with its rolling resistance, thanks to the special lightweight design. The rolling resistance of the tyre is around 25 per cent lower than that of a tyre with class A rolling resistance, according to the company. 

Lower rolling resistance also means that the vehicle consumes less energy, and this, in fact, extends the range of electric vehicles by up to 6 per cent.

Continental AG has promised to completely convert its global tyre production to make use of sustainable materials by 2050.

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Compiled by : Reviewer Team Reviews

Tips for long-lasting tyres

21st September 2020
"Tyres are sometimes the major expense of your car after fuel so ensure you get the full benefit of your investment."

Tyres are sometimes the major expense of your car after fuel so ensure you get the full benefit of your investment. It takes good maintenance and treatment to get the best out of your tyres. Once in 4-5 years, you will need a replacement. However, your tyre could easily be ripped down to shreds by the end of that time, if due care was not taken to it.

The following easy tips are not just a way to enhance your tyres' durability but also boost overall fuel economy, driving behavior and, perhaps significantly, your general safe driving.

Monthly check of tyre inflation

Too much-inflated tyres will unexpectedly bounce you around, poorly-inflated tyres cause you to lose handling characteristics and make your fuel expenses even more. What's even worse is that tyres that are significantly poorly-inflated can overheat and burst.

Look for the best pressure for your tyres, front and back. Don’t forget to check your tyres every month. You can even set a reminder if you have trouble remembering it.

 

Check your wheels for balance

When you get your tires rotated, you can also get your wheels balanced. And if you use a two-wheeler then need not do this, you can just do your tyre rotation. There's a heavy spot inside every tire and wheel. None of them is perfect, even though they are completely new. The gap is slight, estimated in 1 to 1⁄2 ounces. But vibration and uneven tire wear can be caused by that slight difference. Using a special device and small weights your technician can stabilize any wheel. As when the tire wears, the weight will need to be shifted or changed. It is a quick, easy cycle that costs far less than a new tire! Please ensure throughout rotation you have the balance of your tires tested and balanced.  

To preserve the life of your tyres, you need to minimize the repetitive and sudden braking. Sudden acceleration also leads to reducing tire’s wear similarly. Standard tyres, not ideal for power slides or burnouts. Even if you are enticed by the scent of burnt rubber, stop any of those gimmicks on your tyres. They put undue pressure on the tyres, reducing life faster than expected.

 

Always carry out pre-travel examinations

Before any ride, this should be something you do. The tires should always be provided with a pre-trip examination of key structures for road preparation. Test the tyre pressure, check at the condition of the tyres, and be prepared to tackle troubles before hitting the roadway to mitigate the damage.

Don't forget to carry a spare tyre!

 

Heavy loads

Motorcycles are light and heavy, and people either slim or obese. We may raise the tension of the tyres to accommodate more weight (within the prescribed edges) understanding this factor. If we add a traveler and a load to it, we should apply further pressure to the prescribed maximum limit to sustain this big load.

Anyway, aim to make the bike as light as possible. The heavier the load is, the more the damage is, so we can obey guidelines like emptying the saddle bars and the top case or removing them if we don't need it. We may also decrease the weight of the unwanted stuff taken from other boxes and the storage of the under the seat.

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Compiled by : Upasana Poudel Upasana Poudel

How to pick motorcycle tyres? Reviews

14th January 2021
"Manufacturers are increasingly going towards tubeless tyres so there is immediate leakage in the event of a puncture when the air makes a path through the tube, the tyre and the rim opening."

Tyres are the key components of a motorcycle that help one to get the bike onto a surface like a stand without aids. For maximum quality, performance and handling, the correct tyres are what you need. So how do you pick your motorcycle's best tyres?

There are four major types of tyres to begin with; tube form, tubeless, bias-ply and radial. 

Tube-type tyres consist of the valve and rim tyres and valve tubes. Manufacturers are increasingly going towards tubeless tyres so there is immediate leakage in the event of a puncture when the air makes a path through the tube, the tyre and the rim opening.

In the other side, tubeless tyres consist of an internal conduit that is integral to the tyre.

tyres

Even, bias-ply tyres do not easily shed heat and have a rigid sidewall because all the belts extend from sidewall to sidewall. Radial tyre cables, on the other hand, dissipate heat faster and the fewer cord layers on the sidewall allow the tyre to bend further. Touring motorcycles are also more likely to use bias-ply tyres because they have load carrying power and durability, whereas supersport or streetfighter motorcycles would prefer stronger grip radials.

Now that you know the forms, based on the tread pattern and compound, you would need to further settle on a tyre.

 

What are the compound and the tread pattern?

The compound is the material that forms the bulk of the tyre. Tread, on its circumference, refers to the rubber that makes contact with the road. The tread is made of the tyre's crown and its shoulders. On the other hand, the tread pattern is the arrangement on the tyre that involves channels and grooves that occur to steer water away from the touch patch. This, in damp weather, stops the tyre from losing traction on the ground.

Various bikes and riding conditions need various tyres. For starters, soft slick tyres are commonly used by MotoGP bikes so the more rubber they have in contact with the road, the more traction they can have. They do use tyres with a tread pattern, though, when racing in the mud. Patterns, for that matter, are also seen on road bikes and scooters. In the other hand, touring bikes use a hard compound tyre that offers a large variety of textures, climates and temperatures with toughness and reliable performance.

Size

You should match the required rim size for the tyre you select. It would definitely give you more grip when using tyres that are much larger than the acceptable size, but they are not inherently stronger. This could lead to less mobility as well as hampering acceleration and suspension activitie.

Bikes such as this Ducati Monster 797 use large tyres to provide the huge amount of power that is transmitted to the rear wheel for greater traction and grip. It also assists with the bike's aesthetics. 

Motorcycles still use wide tyres in the 200cc-400cc segment, but not as wide as larger bikes of greater size. A performance-oriented, high-horsepower 390 Duke would have a harder compound than a Pulsar 220, which is more longevity-oriented. The stiffness depends on the kind of motorcycle it is.

Commuter bikes such as this TVS Victor are fitted with skinny tyres as they concentrate more on feature than shape. These types of tyres are fine, along with being long-lasting, for handling and manoeuvrability in traffic; thanks to the hard compound they are made of.

To complement the body type of the segment, most scooters feature tyres that are narrower in diameter. On the traditional 12-inch front and 10-inch rear tyre system, the Honda Grazia runs. There are few exceptions, however, such as the Aprilia SR150 that uses 14-inch wheels.

This Royal Enfield Himalayan runs on something called dual-purpose tyres, such as adventure touring bikes. Thanks to their tread pattern, these tyres can be used on tarmac as well as gravel and sand, as their name implies. These tyres have a 'block pattern' that can dig into the soil for extra traction and drive out gravel or debris.

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Compiled by : Upasana Poudel Upasana Poudel