GT Radial Champiro WT-AX review, test and rating. Compare all tyre tests ratings and reviews on GT Radial Champiro WT-AX
GT Radial Champiro WT-AX
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Winter tyres
GT RADIAL
Champiro WT-AX
  • Safety : not yet rated
  • Comfort : not yet rated
  • Economy : not yet rated
  • Snow : not yet rated
  • Ice : not yet rated
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GT Radial Champiro WT-AX review, test and rating

GT Radial Champiro WT-AX review, test and rating. rezulteo collects tyre information from sources all over Europe, and offers comprehensive and pertinent information to help you make the best choices when it comes to your tyres. See our methodology for our tyre rating system. See test rules for test tyres

GT Radial Champiro WT-AX performance

We do not currently have any sources for scoring the GT Radial Champiro WT-AX.

not yet rated

Safety

not yet rated

Comfort

not yet rated

Economy

not yet rated

Snow

not yet rated

Ice

Methodology for performance measurements

The sources

Sources refer to a market player who carries out independent tyre comparison tests, based on a stable methodology and broad performance criteria, to provide objective results for a range of similar tyres according to the type of use.

Only the sources that respect the criteria are included in the base. These criteria are also applied for every test source.

The sources used to establish the performances for a tyre are:

  • Data from published tests from specialized media.
  • Data from Regulation (EC) 1222/2009 "on the labelling of tyres with respect to fuel efficiency and other essential parameters". Or the most widely observed label values (MOBS) in the absence of official values*.
  • Data published by independent test institutes.

Detailed list of the sources (not including Regulation (EC) 1222/2009) used to rate each product accompanies the display.

The structure of the ratings

The final rating is divided into 9 elementary performances, and an additional 4 elementary performances for winter tyres.

The elementary performances are grouped into 5 performance categories; 3 for summer tyres, and 2 for winter tyres.

Every elementary performance is integrated into its group with a different weighting according to its importance.

The performance groups and the elementary performances are as follows:

General performances Winter performances

Economy

  • Wear life
  • Fuel savings

Snow

  • Snow braking
  • Acceleration on snow

Comfort

  • Irregularity absorbation
  • Dry handling
  • Road noise

Ice

  • Ice braking
  • Acceleration on ice

Security

  • Dry braking
  • Wet braking
  • Wet grip
  • Aquaplaning

The methodology for the calculation

Every elementary performance is rated accordingly to the following princip:

  • A score of 10 is given to a tyre which achieves the best result for a given test.
  • The score given to other tyres decreases in proportion to the standard deviation of the selected discriminating factor.
  • All results that are 9 times higher than this standard deviation obtain the score of 1.

If the source uses his own rating (when it is not on a base of 10), a linear transcoding is performed

The final score for the basic performance is the arithmetic average of the scores obtained for each test.

Note: Tests conducted by car magazines or specialised bodies generally cover the most common tyre dimensions available on the market. Even if performances vary slightly depending on dimensions, we have chosen to apply the rating to all dimensions for a tyre model.

The star rating system

The stars gives a graphic overview of the value for a performance group. They are given according to the following scale:

0 to 4 = 0 stars, 4 to 5 = 1 star, 5 to 6 = 2 stars, 6 to 7 = 3 stars, 7 to 8 = 4 stars, 8 and + = 5 stars

*MOBS: Data taken from publicly available labelling data, from Internet sites. Click here for more information

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