3D software was used to design the tyre profile and do simulation tests to allow the best possible results to be gained before creating samples, maximizing the water dispersal, rolling resistance and performance of the tyre.
Wider section grooves between tread blocks allow better drainage performance. Serrated grooves on the tread block walls reduce road noise and quickly disperse water, whilst chamfered lateral grooves on the tread shoulder also help to reduce the rolling noise.
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.
Nankang SPORTNEX AS-2 tyre review
Average based on 6 test results
Grip in dry conditions
Braking in dry conditions
Grip in wet conditions
Braking in wet conditions
Grip in snow
Internal noise level
13.01.2021fromjamie good value for money
07.11.2020fromWilliam Willis The tyre ratings certainly do not lie, my Corsa Nurburgring grips very well in most conditions. The car itself was not developed to be a comfortable cruiser anyway, and the 225 35 18 is at the limit size wise I can put on without scuffing arches on fast cornering. The car will never break 50mpg anyway like a small modern diesel version can so fuel consumption rating was not a factor in buying, was all about the grip which these tyres definitely deliver.
27.11.2019fromDes Grip well, wet or dry, but seem to be wearing fast, but are cheap. Life is a compromise...
25.12.2018fromBrett Can’t fault them well worth the money