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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.
The ultra-high performance product with an asymmetrical profile for the sports oriented car. The perfect tyre for the sporty, demanding driver in wet and dry conditions. Suitable for a wide range of models, from super sports cars such as the Enzo Ferrari, to popular models like the new Golf.
It offers high performance with a good level of comfort and low noise
In certain sizes it is available as a runflat
State of the art driving precision from Formula One technology
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.
PotenzaRE050ARFT tyre review
Average based on 22 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 driven247,299
18.10.2014fromMe Utter rubbish- they are basically like a budget tyre but with a premium name complete waste of money
12.04.2012fromGöran Especially for this kind o tire very good comfort and noise levels, even on coarse road surfaces (like in Sweden).
21.10.2010fromSix Degrees Rubbish! Having run various tyres from budget to high performance these come near the bottom of the list. I ran them in non-RFT form on a Golf R32 and they were mediocre at best but they came standard on the BMW so didn't have a choice. They are very hard and crash about quite lot, they tramline something terrible and traction control light comes on over speed bumps (<10 mph) and on hard cornering - all in the dry! Now, in the wet they are almost lethal. No grip in the corners, wheels spin when pulling off the lights even if you slip the clutch. You only have to visit a few BMW forums or other tyre review sites to read that these comments / concerns are common across the range of BMWs. Avoid these tyres.... I think BMW have switched to Conti's now as I didn't see any of them on the new BMWs at the dealer ship and that's a good thing!
17.05.2010fromOrphy They last but the grip suffers - I expect a tyre to be softer. Good levels of grip but give up too quickly on a track (too hard). Any water on the road and you feel more like on ski - this is probably due to the size, rather than the tyre itself. Good all rounders. Very strong - any non-RFT would give up on pot holes. I will never go back to non-run flats - first class technology, tested with no pressure during a BMW event - brilliant! I highly recommend the RFT for any enthusiastic driver with a powerful car. Those with comfort in mind should look elsewhere.
255/30 R19 91Y XL *, EVc, with rim protection (MFS), runflat
Tyre width
255
Tyre profile
30
Construction type
R
Tyre size
19
Tyre load index
91
Speed index
(Y)
With/Without Valve (TT/TL)
Tyre requires tube
M/C
No
* The list prices, if available, are a net calculation basis for determining sales prices between tire manufacturers and their dealers. In no case are the selling prices paid or usually paid.
**Prices include VAT and delivery within mainland UK (excl. Scottish Highlands).
***More than 90% of our orders reach the customer in the specified delivery time.