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The efficiency class label evaluated based on customer preferences.
Delticom centralized survey results from more than 40.000 customers from 15 European countries and created this index.
A unidirectional UHP tire that provides new tire performance in wet and dry even after the tire is more than half worn. It delivers world class technology by combining grip, handling, comfort, exceptional wear and eye appealing characteristics.
High dispersion silica expands compound performance envelope for superior wet grip and better treadwear.
Race proven carcass design with jointless cap plies, wide steel belts, ESCOT carcass profile and high durometer apex delivers razor sharp response and extreme grip without compromising ride quality.
Three-dimensional lateral grooves optimize water evacuation in footprint
Triple tread radius optimizes footprint shape for even pressure distribution
Shoulder blocks tilted into direction of travel to improve grip and reduce worn noise
Rim Protector in the lower sidewall safeguards wheel against scratches and abrasions
The Tire Labeling Ordinance specifies the information requirements on fuel efficiency, wet grip and external rolling noise from tires. In addition, reference is made to the winter properties of the product.
The EU 1222/2009 regulation that has been in force since November 1st, 2012 has been revised and will be replaced by regulation EU 2020/740 from May 1st, 2021; From this point on, new requirements apply. The rating classes for fuel efficiency, wet grip and exterior noise have been changed and the layout of the EU label has been adjusted. The manufacturer's product data sheets stored in the EU database can be downloaded via a QR code integrated into the label. Information on snow grip and ice grip is also newly included for tires that meet these criteria.
The following tires are exempt from the regulation: - tires that are designed exclusively for installation on vehicles that were first registered before October 1, 1990 - retreaded tires (until a corresponding extension of EU VO 2020/740 has taken place) - professional off - Road tires - Racing tires - Tires with additional devices to improve traction, eg studded tires - T-type emergency tires - Tires with a permissible speed below 80 km/h - Tires for rims with a nominal diameter ≤ 254 mm or ≥ 635 mm
The criteria and evaluation classes at a glance
fuel efficiency
The fuel consumption depends on the rolling resistance of the tyres, the vehicle itself, the driving conditions and the driving style of the driver. The measured rolling resistance (rolling resistance coefficient) of the tire is divided into classes A (highest efficiency) to E (lowest efficiency).
If a vehicle is completely equipped with class A tires, a consumption reduction of up to 7.5%* is possible compared to class E tyres. In the case of commercial vehicles, it can even be higher. (Source: European Commission Impact Assessment * when measured according to the test methods set out in Regulation (EU) 2020/740)
Please note: Fuel consumption depends to a large extent on your own driving style and can be significantly reduced by driving in an environmentally friendly manner. Tire pressure should be checked regularly to improve fuel efficiency.
wet grip
Wet grip is divided into classes A (shortest braking distance) - E (longest braking distance).
If a car is equipped with class A tires, compared to class E tires, a braking distance of up to 18 m can be reduced when braking from 80 km/h (on a road surface with average grip).* *Source: wdk Economic Association of the German Rubber Industry eV
Please note: Traffic safety depends to a large extent on your own driving style. The stopping distances must always be observed. Tire pressure should be checked regularly to improve wet grip.
External rolling noise
The noise emitted by a tire affects the overall volume of the vehicle and affects not only your own driving comfort, but also the noise pollution of the environment. In the EU tire label, the external rolling noise is divided into 3 classes from A (lowest rolling noise) - C (highest rolling noise), measured in decibels (dB) and compared with the European noise emission limit values for external tire rolling noise.
A The pictogram with the classification "A" indicates that the tire's external rolling noise is more than 3 dB below the EU limit value in force until 2016. B The "B" classification means that the tyre's external rolling noise is up to 3 dB below or equal to the EU limit value in force until 2016. C The classification "C" indicates that the specified limit value is exceeded.
ECSTASPTKU31 tyre review
Average based on 153 test results
Grip in dry conditions
Braking in dry conditions
Grip in wet conditions
Braking in wet conditions
Grip in snow
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven187,406
14.02.2019fromsam Amazing value, so much cheaper than premium tyres like Goodyear F1-GSD, which the Kumhos replaced, and yet so close in performance and in some ways superior too (as in steering feel, tread life and side-wall durability).
22.11.2014fromD Rawnsley Good tyre in the dry and wet. Tyre only breaks contact with the road when pushed very hard. Water displacement excellent. Early to tell but wear looks even and smooth.
08.08.2014frompatrick hoyle didn't think about the extra rubber sticking out due to the rim protector, I fit myself with not much more than a couple of spoons and the last bit to flip on was a bugger. A tyre fitter with a machine would never notice
12.07.2014fromAndrew Atkinson Great alternative to the orignal tyres that were fitted from new. Half the price and have similair tread pattern