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Directional pattern design and lateral grooves from the centre rib to the tyre shoulder improve water drainage when driving on wet roads by moving water at the centre to both sides of the tyre through these lateral grooves. It also features improved traction on ice/snow roads by containing ice and snow in grooves and easier ice/snow removal.
The lateral groove connecting irregular longitudinal groove pattern (from narrow to wide) can reduce noise generated. The wave pattern on the bottom of wider groove improves water drainage and space for ice/snow retention.
Interlaced longitudinal grooves for improved water drainage on wet roads. The wave pattern at the groove bottom adds ice/snow grip and ground friction. The triangular block located on the inner wall of the longitudinal groove improves water drainage and traction on wet roads.
The sawtooth shape lateral grooves of tyre shoulder not only adds initial tyre friction but also extra traction for cornering stability. The grooves on the tyre shoulder improve water drainage and tyre's snow traction performance.
Similar to off-road tyre sidewall design with largely patterned grooves improves extra ice/snow contact patch and shovelling performance as well as traction performance on snow roads.
Adopted 3D SIPE design and offer deep, medium, and shallow sipe at a different location of pattern blocks. The centre rib with deepest sipes for improved ice/snow traction while the sidewall with the shallowest sipes for better rigidity and cornering performance.
EU Tyre Label and Efficiency Classes
The European Union has introduced the EU Tyre Label by Regulation (No. 1222/2009) identically and bindingly for all EU member states. It applies to passenger car tyres, light commercial vehicle tyres and heavy commercial vehicle tyres produced after 01.07.2012.
Three different areas are tested: rolling resistance, wet grip and the rolling noise the tyre makes on the road.
The following are not affected by the EU Tyre Label: retreaded tyres, professional off-road tyres, racing tyres, tyres with additional devices to improve traction such as spiked tyres, T-type emergency tyres, special tyres for fitting to vehicles first registered before 1 October 1990, tyres with a maximum authorised speed of 80 km/h, tyres for rims with a nominal diameter of 254 mm or less or 635 mm or more.
With this regulation, the European Union is pursuing the goal of promoting economic and ecological efficiency in road traffic as well as increasing road safety on the one hand, and on the other hand, granting consumers more product transparency and at the same time serving as an active decision-making aid.
Already during the incorporation, experts criticise the fact that the EU Tyre Label unfortunately only shows a few product characteristics. Apart from rolling resistance, wet grip and rolling noise, which are the main focus of EU tyre labelling, tyres have much more important and safety-relevant product characteristics, such as aquaplaning properties, driving stability, service life, braking properties on dry and wet roads, behaviour in wintry conditions, etc.
Tyre manufacturers point out that test results from various institutions and journals remain an important information medium for the end consumer. These tests usually focus on further safety-relevant product characteristics besides the EU standard qualifications for tyre labelling, which are always important for the final customer.