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Post by jtan38 on Apr 12, 2013 8:24:18 GMT 8
UTQG Ratings for Passenger Car Tyres Many drivers may have noticed markings on the sidewalls of their tyres which list the following parameters, accompanied by ratings: Treadwear, Traction & Temperature. These are UTQG Ratings. UTQG is an acronym for Uniform Tyre Quality Grading System. All passenger tyres sold in the U.S.A. (this includes RV tyres) must have these ratings marked on the sidewall, excepting tyres with a rim diameters of 12" or less, deep tread snow tyres, & temporary spare tyres. Only passenger car tyres sold in the U.S.A. market are required to have UTQG markings. For this reason, not all passenger car tyres sold in Australia have markings which show UTQG Ratings. UTQG Ratings indicate relative performance for passenger tyres for the parameters of treadwear, traction & temperature. The following information explains how a tyre achieves each of these ratings. Treadwear - This is a comparative rating based on the wear rate of the tyre tested under controlled conditions on a specified government test course. The defined "standard tyre" has a rating of 100. Gradings are in multiples of 20. The treadwear rate of all test tyres is compared to that of the "standard" tyre. Test Procedure - A group of not more than four vehicles fitted with the test tyres travel the specified test course in convoy. Tread depths are measured each 800 miles. The tyres are run for a total of 7,200 miles. The specified test course covers 400 miles of public roads. The tread depth measurements for each vehicle are averaged to give a projected wear-out life. A treadwear rating of 200 indicates the tread wear rate of the test tyre was half that of the standard tyre. Application of Test Results - The results for treadwear using the test conditions described above will directly reflect these test conditions. The actual conditions in which tyres are used will nearly always vary greatly from those used in the UTQG test, therefore so will treadwear rates. Factors such as the road surface type, tyre inflation pressure, vehicle wheel alignment, driving habits, & road surface temperatures will all affect treadwear rates in actual using conditions. Traction - This rating grades wet braking traction measured under controlled conditions on specified government test surfaces of wet concrete & asphalt. There are four grades for traction: AA being the highest, down to A, B & C. All tyres must reach the level represented by a "C" rating to be sold in the U.S.A. Test Procedure - Test tyres are mounted on wheels & inflated to 24psi (165kpa). These wheel / tyre assemblies are then fitted to the test (instrumented) trailer. Each tyre is loaded to 492kg (1,085lbs). The test trailer is towed over the wet concrete & asphalt surfaces at a speed of 65kph (40mph). Water depth is the same for each test. The trailer brakes are locked-on as the trailer reaches the wet section of the skid-pavement. The tires are dragged in this condition, the friction generated is measured. This test is done on the concrete & the asphalt surface. Twenty measurements are taken on each surface, these results are averaged to give a final result. Tyres are given a grading based on the friction they generate during the above test. Application of Test Results - The tests for traction measure wet braking traction only, not straight ahead acceleration traction. The ratings achieved in these tests do not relate to cornering traction or peak-grip values like those achieved during non-skid braking tests. This is due to the fact that UTQG traction testing is done with no cornering forces & with the brakes on the test trailer locked-on. Temperature - This rating grades a tyres ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. The are three grades for temperature, which is the same as for traction minus the "AA" rating. Test Procedure - Test tyres are mounted on wheels at the maximum rated inflation pressure for that tyre. The tyre is run on the pulley wheel at the maximum rated loading. Successive thirty minute runs are made in 5mph increments, with the initial running speed being 75mph. This procedure is repeated until the tyre fails. Application of Test Results - Speed is the only variable in this test. In actual using conditions, road camber, wheel alignment & vehicle dynamics are a few more factors that will also affect how much heat a tyre will need to dissipate. A tyre's speed rating is a much more specific way of expressing its ability to dissipate heat compared to its UTQG temperature rating.
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Post by jtan38 on Apr 12, 2013 8:27:12 GMT 8
UTQG Ratings for Passenger Car Tyres Many drivers may have noticed markings on the sidewalls of their tyres which list the following parameters, accompanied by ratings: Treadwear, Traction & Temperature. These are UTQG Ratings. UTQG is an acronym for Uniform Tyre Quality Grading System. All passenger tyres sold in the U.S.A. (this includes RV tyres) must have these ratings marked on the sidewall, excepting tyres with a rim diameters of 12" or less, deep tread snow tyres, & temporary spare tyres. Only passenger car tyres sold in the U.S.A. market are required to have UTQG markings. For this reason, not all passenger car tyres sold in Australia have markings which show UTQG Ratings. UTQG Ratings indicate relative performance for passenger tyres for the parameters of treadwear, traction & temperature. The following information explains how a tyre achieves each of these ratings. Treadwear - This is a comparative rating based on the wear rate of the tyre tested under controlled conditions on a specified government test course. The defined "standard tyre" has a rating of 100. Gradings are in multiples of 20. The treadwear rate of all test tyres is compared to that of the "standard" tyre. Test Procedure - A group of not more than four vehicles fitted with the test tyres travel the specified test course in convoy. Tread depths are measured each 800 miles. The tyres are run for a total of 7,200 miles. The specified test course covers 400 miles of public roads. The tread depth measurements for each vehicle are averaged to give a projected wear-out life. A treadwear rating of 200 indicates the tread wear rate of the test tyre was half that of the standard tyre. Application of Test Results - The results for treadwear using the test conditions described above will directly reflect these test conditions. The actual conditions in which tyres are used will nearly always vary greatly from those used in the UTQG test, therefore so will treadwear rates. Factors such as the road surface type, tyre inflation pressure, vehicle wheel alignment, driving habits, & road surface temperatures will all affect treadwear rates in actual using conditions. Traction - This rating grades wet braking traction measured under controlled conditions on specified government test surfaces of wet concrete & asphalt. There are four grades for traction: AA being the highest, down to A, B & C. All tyres must reach the level represented by a "C" rating to be sold in the U.S.A. Test Procedure - Test tyres are mounted on wheels & inflated to 24psi (165kpa). These wheel / tyre assemblies are then fitted to the test (instrumented) trailer. Each tyre is loaded to 492kg (1,085lbs). The test trailer is towed over the wet concrete & asphalt surfaces at a speed of 65kph (40mph). Water depth is the same for each test. The trailer brakes are locked-on as the trailer reaches the wet section of the skid-pavement. The tires are dragged in this condition, the friction generated is measured. This test is done on the concrete & the asphalt surface. Twenty measurements are taken on each surface, these results are averaged to give a final result. Tyres are given a grading based on the friction they generate during the above test. Application of Test Results - The tests for traction measure wet braking traction only, not straight ahead acceleration traction. The ratings achieved in these tests do not relate to cornering traction or peak-grip values like those achieved during non-skid braking tests. This is due to the fact that UTQG traction testing is done with no cornering forces & with the brakes on the test trailer locked-on. Temperature - This rating grades a tyres ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. The are three grades for temperature, which is the same as for traction minus the "AA" rating. Test Procedure - Test tyres are mounted on wheels at the maximum rated inflation pressure for that tyre. The tyre is run on the pulley wheel at the maximum rated loading. Successive thirty minute runs are made in 5mph increments, with the initial running speed being 75mph. This procedure is repeated until the tyre fails. Application of Test Results - Speed is the only variable in this test. In actual using conditions, road camber, wheel alignment & vehicle dynamics are a few more factors that will also affect how much heat a tyre will need to dissipate. A tyre's speed rating is a much more specific way of expressing its ability to dissipate heat compared to its UTQG temperature rating.
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Post by jtan38 on Apr 15, 2013 10:11:55 GMT 8
"] Kumho Ecsta KU31 is a race proven high performance tyre. Kumho KU31 offers outstanding hydroplaning performance with unbelievable uneven wear resistance. The racing technology used in the Kumho KU31 has produced superb handling and outstanding cornering ability.
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Post by jtan38 on Apr 16, 2013 7:21:22 GMT 8
goodyear efficientgrip germany Reduce Fuel Consumption Without Reducing Other Performances Introducing the new EfficientGrip from Goodyear; the tyre choice for reduced fuel consumption without reducing other performances. It has the great handling and braking qualities you’d expect from a Goodyear tyre, while providing excellent mileage and reduced fuel consumption due to its outstanding rolling resistance. The new EfficientGrip with its FuelSaving Technology provides enhanced driving performance while also doing its bit for the environment - and at the same time, your wallet!
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Post by jtan38 on Apr 16, 2013 7:22:06 GMT 8
goodyear efficientgrip germany Reduce Fuel Consumption Without Reducing Other Performances Introducing the new EfficientGrip from Goodyear; the tyre choice for reduced fuel consumption without reducing other performances. It has the great handling and braking qualities you’d expect from a Goodyear tyre, while providing excellent mileage and reduced fuel consumption due to its outstanding rolling resistance. The new EfficientGrip with its FuelSaving Technology provides enhanced driving performance while also doing its bit for the environment - and at the same time, your wallet!
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Post by jtan38 on Apr 17, 2013 10:00:01 GMT 8
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Post by jtan38 on Apr 18, 2013 7:07:54 GMT 8
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Post by jtan38 on Apr 19, 2013 8:01:05 GMT 8
forte oem 17 inches 5x114.3 good condition view to believe
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Post by jtan38 on Apr 19, 2013 8:46:56 GMT 8
forte oem 17 inches 5x114.3 good condition view to believe
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Post by jtan38 on Apr 25, 2013 7:46:50 GMT 8
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Post by jtan38 on Apr 27, 2013 7:43:28 GMT 8
]mazda cx7 oem rims with tyres 18 inches selling cheap
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Post by jtan38 on Apr 29, 2013 10:47:44 GMT 8
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Post by jtan38 on Apr 30, 2013 7:23:27 GMT 8
Its has been ten years since I have been doing tyres. Very tired. Maybe it's time for a change
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Post by jtan38 on May 1, 2013 9:31:01 GMT 8
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Post by jtan38 on May 4, 2013 8:01:32 GMT 8
Tired
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Post by jtan38 on May 6, 2013 7:57:28 GMT 8
Anyone interested in tyre business Looking for assignment Please let me know 98368640
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Post by jtan38 on May 7, 2013 7:14:31 GMT 8
nexen nblue tyres for new launch Nexen has announced plans to introduce its new environmentally-friendly N’Blue ECO and HD tyre ranges into the European markets during the third quarter of 2011. According to the company, the name is comprised of `N`, for `Nexen` as well as the descriptive `Blue`, a colour symbolising refreshing coolness. `ECO` of course stands for `ecology` and `HD` for `handling`.
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Post by jtan38 on May 8, 2013 7:30:46 GMT 8
"] Kumho Ecsta KU31 is a race proven high performance tyre. Kumho KU31 offers outstanding hydroplaning performance with unbelievable uneven wear resistance. The racing technology used in the Kumho KU31 has produced superb handling and outstanding cornering ability.
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Post by jtan38 on May 9, 2013 7:03:09 GMT 8
2nd hand 18 inches 3 series selling cheap
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Post by jtan38 on May 10, 2013 7:01:54 GMT 8
goodyear efficientgrip germany Reduce Fuel Consumption Without Reducing Other Performances Introducing the new EfficientGrip from Goodyear; the tyre choice for reduced fuel consumption without reducing other performances. It has the great handling and braking qualities you’d expect from a Goodyear tyre, while providing excellent mileage and reduced fuel consumption due to its outstanding rolling resistance. The new EfficientGrip with its FuelSaving Technology provides enhanced driving performance while also doing its bit for the environment - and at the same time, your wallet!
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Post by jtan38 on May 10, 2013 7:22:40 GMT 8
goodyear efficientgrip germany Reduce Fuel Consumption Without Reducing Other Performances Introducing the new EfficientGrip from Goodyear; the tyre choice for reduced fuel consumption without reducing other performances. It has the great handling and braking qualities you’d expect from a Goodyear tyre, while providing excellent mileage and reduced fuel consumption due to its outstanding rolling resistance. The new EfficientGrip with its FuelSaving Technology provides enhanced driving performance while also doing its bit for the environment - and at the same time, your wallet!
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Post by jtan38 on May 10, 2013 7:27:43 GMT 8
goodyear efficientgrip germany Reduce Fuel Consumption Without Reducing Other Performances Introducing the new EfficientGrip from Goodyear; the tyre choice for reduced fuel consumption without reducing other performances. It has the great handling and braking qualities you’d expect from a Goodyear tyre, while providing excellent mileage and reduced fuel consumption due to its outstanding rolling resistance. The new EfficientGrip with its FuelSaving Technology provides enhanced driving performance while also doing its bit for the environment - and at the same time, your wallet!
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Post by jtan38 on May 11, 2013 6:39:32 GMT 8
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Post by jtan38 on May 11, 2013 6:53:17 GMT 8
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Post by jtan38 on May 11, 2013 6:55:39 GMT 8
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