The Ultrac Vorti R is Vredestein’s most sporty Ultra High Performance summer tyre to date. Compared to the Ultrac Vorti, the emphasis with the Ultrac Vorti R lies with ensuring grip and driving precision for the most powerful cars. The tyre maintains its traction at higher temperatures, including on bends, and is exceptionally stable at high speeds. It is therefore the ideal partner for four-wheel and rear-wheel drive sports cars that demand the most from their tyres.
The Ultrac Vorti R was developed in close cooperation with Italian design company Giugiaro, and the carbon accents on the sidewall and in the tread are a design feature unique to this tyre. It is available in several sizes that have been specifically optimised for the rear axle. They include an adjusted belt angle and an even lower air ratio, with an increased focus on maintaining grip on dry surfaces (as the front tyres discharge most of the water on wet roads).
EU Tyre Label and Efficiency Classes
The European Union, under CE 1222/2009, has mandated that all tyres manufactured after the date of July 1 2012 for cars and commercial vehicles include standard EU Tyre Labels classifying them by three performance characteristics:fuel efficiency classified from A to G,wet grip classified from A to G, and noise emission in decibels.
Categories of tyres unaffected by this regulation include: retreaded tyres, professional off-road tyres, racing/sports car tyres, as well as certain types of tyres designed to improve traction such as studded tyres, T-type temporary spare tyres, tyres for cars built before 1990, tyres with a maximum allowed speed of 80km/h, tyres for rims with a diameter less or equal to 254 mm or greater or equal to 635 mm.
This label is intended on one hand to promote economic and ecological efficiency in traffic, as well as increase road safety, and on the other hand to help consumers select appropriate tyres by ensuring a certain degree of product transparency.
Nevertheless, the label has been criticized for only showing a very limited number of characteristics. Professionals argue that tyres have many more features that are important and relevant to road safety, including but not limited to aquaplaning properties, driving stability, service life, product properties on wet and dry roads other than wet grip, properties on snow.
Tyre manufacturers suggest that the test results from various institutions and industry magazines should remain a very important source of information for the end consumer, because they focus on and rate a wide variety of tyre properties and features.
||Ultrac Vorti R
||265/35 ZR20 (99Y) XL
|Tyre load index
|With/Without Valve (TT/TL)
||Tyre requires tube