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06/05/2011
Eagle F1 asymmetric makes room for second generation

New model for goodyear 

 

launch Theof the new UHP tyres by the US manufacturer took place on the beautiful roads of Andalusia and at the Monteblanco circuit near Seville in a series of comparative tests that revealed the comfort and grip of a tyre with a marked GT personality

by Mino De Rigo

It took the US manufacturer's research and development team just over two years of work to exceed the performance parameters of the Asymmetric 1, the predecessor with strong overall balance. 

 

Goodyear introduced its first summer tyre, the UHP Eagle F1, thirty years ago and it is celebrating the event with a new addition to the family, the Asymmetric 2, a high performance tyre designed for sports and luxury cars. It took the US manufacturer's research and development team just over two years of work to exceed the performance parameters of the Asymmetric 1, the predecessor with strong overall balance. So here are the results of the subjective opinions of test drivers and representatives of the press after a series of road tests and comparative tests on the track. The backdrops for the European launch were the panoramic routes around the Spanish city of Seville, the motorways of Andalusia, and the nearby Monteblanco circuit, a Formula 1 homologated track. The tests were divided into two stages over two days and the trio of cars chosen to try out the new tyres was the Audi A7 Sportback, Audi TT RS and Mercedes CLS. The immediate impression was that, compared to the previous version, the Eagle F1 Asymmetric 2 had gained in handling and comfort and in braking ability in particular. This confirmed development guidelines that began with the use of ActiveBraking Technology: a solution conceived to increase grip surface thanks to specially-shaped blocks within the tread that increase the tyre-to-road contact area when braking and shorten stopping distances.

 

ActiveBraking sugli scudi
Much more than controlled deformation. Grip is increased by the special compound of high molecular weight polymers, a high silica content, and the use of a resin optimized for traction derived from experience in sports competitions and created to give more grip on wet roads. It was in these conditions that the tyre seemed to give its best performance, as demonstrated by comparative tests with similar products by its main competitors. At the dedicated test session on the up and down track at Monteblanco, the tyre gave a constantly reassuring sensation of grip during braking and also prevented the car from behaving unpredictably when braking hard and late. Without doubt, this was due to a design decision to use crossed plies in the structure (an aspect inherited from its predecessor and one of its most successful characteristics), to increase carcass rigidity and improve steering precision when cornering, which also improved handling. At top speeds, its most appreciated quality was how much traction loss was gradual. Likewise, steering response was always very linear, which confirmed that the personality of the new Eagle F1 Asymmetric 2 is oriented more towards GT that to exploits on the track.

 

More comfort and efficiency
The proof is also given by driving comfort due to reduced noise and, above all, to the special design of the blocks: there are 64 on the outside and 72 on the inside in a sequence that guarantees the objective fixed at the design stage. Another substantial new addition compared to the previous generation is attention to tyre efficiency with the FuelSaving Technology. In addition to the development of a new high silica content compound to reduce heat generation (and the consequent loss of energy), the other two areas of intervention were the aerodynamic design of the walls to contain dissipated energy, especially at higher speeds, by virtue of less air resistance, and the reduction of tyre weight. A special diet of a couple of kilos led to a smoother and more efficient tyre. And the benefits of greater lightness were felt during the slalom tests with improved response and manoeuvrability on repeated changes in direction. Goodyear also says that the Eagle F1 Asymmetric 2 gives more mileage thanks to the shape of the computer-optimized contour and tread rigidity which, according to the US manufacturer, gives more even pressure distribution on the ground; fuel consumption and CO2 emissions are also reduced compared to the previous generation.
Buyers can mount the new tyres starting from June: 29 sizes are already available from 215/45 R17 to 275/30 R19, whereas 21 other sizes are expected to flesh out the range next year.

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