what is the speed rating on car tyres
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Tyre Speed Rating Tyre Speed Rating. The speed rating of a tyre is displayed on the sidewall. Like in the image, you will find it at the end of the tyre's size. It is always represented by a letter-in the following example the tyre speed rating is W.Once you know your tyre speed rating, you can work out what is the maximum speed your tyre is capable of maintaining. For example, the W rating seen in the image, tells us that this tyre can reach speeds of up to 168mph.Speed ratings are based on tests in which engineers run the tyre at 6.2 mph steps, in 10 minute increments, until the required speed has been met.or example, the W rating seen in the image, tells us that this tyre can reach speeds of up to 168mph. Speed ratings are based on tests in which engineers run the tyre at 6.2 mph steps, in 10 minute increments, until the required speed has been met.
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Advantage T/A Sport (T-Speed Rated) Lea en español. Read this page in English. Advantage T/A Sport tires featuring T- speed ratings are BFGoodrich's Standard Touring All-Season tires for the drivers of coupes, sedans, minivans and small crossover vehicles looking to add some fun to their daily commute, in addition to all-season traction in dry, wet and light snow conditions.
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- 1 Winda brand 215/55R17 WH16 Pattern 2  ... Car Tyre 225/55r16 215/55r17 High P... 3  Cheap New PCR Car Tyres 215/55R17 9... 4  215/55R17 radial Passenger Car Tire... 5  BCT Brand Car Tyre 215/55R17 225/55...6  High quality 215/55r17, Keter Brand... 7  High Quality UHP Tyres 205/50R16 22... 8  Radial UHP Tyre 215/55R17 in P609 P... Cheap New PCR Car Tyres 215/55R17 9... 2  215/55R17 radial Passenger Car Tire... 3  BCT Brand Car Tyre 215/55R17 225/55... 4  High quality 215/55r17, Keter Brand... 5  High Quality UHP Tyres 205/50R16 22...
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Tyre Speed Rating Once you know your tyre speed rating, you can work out what is the maximum speed your tyre is capable of maintaining. For example, the W rating seen in the image, tells us that this tyre can reach speeds of up to 168mph. Speed ratings are based on tests in which engineers run the tyre at 6.2 mph steps, in 10 minute increments, until the required speed has been met.
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Tire Speed Rating Explained A letter from A to Z symbolizes a tire’s certified speed rating, ranging from 5 km/h (3mph) to above 300 km/h (186 mph). This rating system, listed below, describes the top speed for which a tire is certified. It does not indicate the total performance capability of a tire. When this speed rating system was originally developed, the Unlimited V category of over 210 km/h (130 mph) was the top speed rating a tire could achieve. As manufacturers made more tires that did not fit this category, it was necessary to better regulate performance at standardized speeds to ensure safety.
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- If necessary, you can use a tire with a speed rating that is greater than the speed rating recommended for your car (for example, instead of using an H-rated tire on the Audi A3, you could use a V-rated tire (149 mph).n this article, we’ll look at just one small part of the code: the service description. As an example, we’ll be using a 2012 Audi A3 TDI. This car’s “tire code” is 225/45R17 94H. You can usually find this information on a sticker on the driver’s side door jamb.
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- 1 We do not recommend downgrading the speed rating of your tires. 2  This may result in poor handling and unpredictable steering. 3  However, if you want better cornering response, there is no problem installing a higher speed rated tire on your vehicle.4  Never mix and match tires with different speed ratings on your vehicle. We do not recommend downgrading the speed rating of your tires. 2  This may result in poor handling and unpredictable steering. 3  However, if you want better cornering response, there is no problem installing a higher speed rated tire on your vehicle. 4  Never mix and match tires with different speed ratings on your vehicle.
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Tyre Speed Rating As well as checking your current tyres, you can also find out what speed rating you require by entering your car registration number: It is very important that you check your speed rating before buying tyres. Choosing a tyre with a lower rating than is appropriate for your car can invalidate your insurance.
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- For example, the Z in 245/45ZR17 or the H in 205/55R16 89H. This letter is the speed rating of the tire. Tires are tested in laboratory conditions under load by tire manufacturers to determine the maximum speed capability of the tire. …feedback on this answer.
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- The U.S. Department of Transportation (DOT) set the ratings scale, shown below. 1  But tire makers test their own tires and assign their own speed ratings. On the sidewall of every tire, you'll find one of these speed rating codes: 2  M - Up to 81 mph. 3  N - Up to 87 mph. 4  P - Up to 93 mph. 5  Q - Up to 99 mph. 6  R - Up to 106 mph. 7  S - Up to 112 mph.
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How new tires can ruin your car For instance, if your car came with V rated tires, meaning they're designed to handle speeds up to 149 miles per hour, you might safely replace them with H rated tires designed to go only 130 mph, he said. You might get a lower price and a more comfortable ride, just be sure you're not going to drive aggressively.
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- (1-10): 10. finish, fit, materials of high quality. This is a very responsive car and a lot of fun to drive. I own a Boxster S 6 speed.I feel very safe at all speeds. I have driven a 911 track car & a Cayman S, all of which are amazing cars.1-10): 10. finish, fit, materials of high quality. This is a very responsive car and a lot of fun to drive. I own a Boxster S 6 speed.
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- You might also find it in the driver’s side door jamb, the gas tank hatch, or inside the glove box door – anywhere that lists the right tire code for your vehicle. Speed rating is easy to locate because it’s usually the last item in the character sequence in the tire’s size code. For example in this tire code: “P205/60R16 82S,” S is the speed rating. To view the tire size code for your current tires, just look at the sidewall.
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Speed Ratings In situations where tires having different top speed ratings are mixed on a vehicle, the maximum speed certification is limited to the top speed certification of the tire with the lowest speed rating. Speed ratings do not indicate how well a tire handles or corners. They only certify a tire's ability to withstand high speed. Speed ratings are indicated as follows: The speed rating is described on the tire sidewall. Many tire manufacturers currently include the speed symbol in the tire size description.
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A Simple Explanation of Tire Speed Rating What Is Tire Speed Rating? A tire’s speed rating indicates the optimal speed that the tire can safely maintain over time. In short, it’s the fastest speed a tire can handle before it no longer performs as designed. The higher the speed rating, the better control and handling you’ll have at higher speeds. The speed rating system was developed to help control the safe performance of tires at standardized speeds. A tire’s certified speed rating is given a letter from A to Z, ranging from 5 km/h (3mph) to above 300 km/h (186 mph). This rating system (see below) shows the top speed for which a tire is certified.
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- Wet Grip(A-G). B Grade – Nearly the best quality tyres to stop in the wet, stopping only 3m more than a grade A tyre but on average 15m shorter than a car on grade G tyres (on a wet road when braking from 50mph – testing according to regulation EC1222/2009).2 Bars – Meets future EU noise limits.erman expertise and cutting edge design makes Continental tyres one of the largest and most respected brands in the world for performance tyres.
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- Generally, it is recommended that a speed rated tire be replaced with a tire having an equivalent or greater speed rating. However, if you never drive at speeds near the limits of your speed rated tires, you may choose to replace them with tires having a lesser top speed rating.
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Car List The rating for each car is a combined score of its Max Speed, Acceleration, Braking, Cornering, and Stability scores. In theory a perfect vehicle rating would be 50.0 (10.0 in each of those categories), though in Gran Turismo Sport the highest-rated vehicle out of the box is the Dodge SRT Tomahawk VGT Technology with a total rating of 43.2.
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- Of course, we always recommend using the same manufacturer for all your tires, but there’s another incredibly important factor to consider: speed rating. Speed ratings tell you the maximum speed a tire can safely sustain for 10 minutes. You’ll find your tire’s speed rating—a letter between ‘A’ and ‘Z’—on the sidewall. It’ll appear at the end of a series of numbers and letters such as P 205/55 R16 89H. For example, a ‘T’ speed rating, common on family vans and sedans, has a 190 km/h maximum speed.
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Report: DHA ingredient in spray-on tans may wreak havoc on DNA While it is true that DHA - docosahexaenoic acid - has been shown to reduce the risk of heart disease, the DHA used in spray on tans is a completely different product that the FDA warns consumers not to consume or inhale. We were absolutely in error, Rick Norvell, president of Norvell Skin Solutions, told ABC News.
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- 5.0. Bought my car with those tires on and drove them for 20, 000 miles although thread seemed low. Never driven in snow so ignore my snow 5 star rating. Excellent grip on dry and wet conditions(with stability system on).Excellent cornering, handling, stability. Wore evenly on my car, balanced well and were not noisy. Excellent tire, just bought a ....0. Bought my car with those tires on and drove them for 20, 000 miles although thread seemed low. Never driven in snow so ignore my snow 5 star rating. Excellent grip on dry and wet conditions(with stability system on).
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How to Read Speed Rating, Load Index & Service Descriptions When Z-speed rated tires were first introduced, they were thought to reflect the highest tire speed rating that would ever be required, in excess of 240 km/h or 149 mph. While Z-speed rated tires are capable of speeds in excess of 149 mph, how far above 149 mph was not identified. service description identifies the tire's load index and speed rating. Service descriptions are required on all speed rated (except for Z-speed rated) tires manufactured since 1991.
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- 1 (See our Tire-pressure gauge buying advice and Ratings 2  .). Set the tires to the automaker's recommended tire pressure. 3  This is printed on a placard in the car, either on a doorjamb, the fuel-filler door, or on the inside of the glove-compartment lid.4  Don't go by the maximum inflation pressure imprinted on the tire.peed rating. Found on the tire sidewall, this letter denotes the maximum sustainable speed and is found directly after the load index. For S-speed-rated tires, it's 112 mph; for T, 118 mph. Speed ratings for other tires include Q, 99 mph; H, 130 mph; V, 149 mph; and Z, 150 mph plus.
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Speed Ratings While a Z-speed rating still often appears in the tire size of some tires, such as 225/50ZR16 91W, the Z in the size signifies a maximum speed capability in excess of 149 mph; the W in the service description indicates the tire’s specific 168 mph maximum speed.
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- 2012 Auto Bild 20 inch Tyre Test - 7th of 8 tyres. 1  Positive - Low rolling resistance. 2  Negative - Dangerously long braking distance in the wet, wet understeer, reduced steering precision, loud and uncomfortable. 3  7th: 2012 Auto Bild 20 inch Tyre Test (245/30 R20)