Tires of standard size 215/65 R16C generally are installed on the cars used for commercial purposes for transportation of goods therefore to the forefront there is maximum resource allowing to cut down expenses. At the same time tires of this size are also used in the private sector on minivans and campers therefore experts evaluated them according to standards of passenger tires. It is probable therefore the majority of tires as a result has finished tests with the depressing assessment "Badly".
Rather weak coupling on wet covering became the most frequent lack of tires of the new test, and only Continental have worsened final assessment because of bad results on dry surface. All nine tires with the worst rating have badly acted in tests on wet track, and at four of them weak side stability was combined with long brake distance.
Five tires on the first places - Apollo, Goodyear, Pirelli, Nokian and Continental - have received only "Well" therefore they have considered to call them leaders of the test inappropriate. Apollo and Goodyear have afforded weaknesses only in tests on wet covering, but at this Goodyear can serve almost twice longer, than tires of the Indian brand. Pirelli and Nokian has weak indicators on wet surface too, but at Nokian besides low resource. Tires Maxxis could act well on dry track whereas Kumho has reduced coupling in any conditions.
According to experts, in the test became obvious that the reason of bad final notes is covered that at increase in resource coupling on the wet road, as a rule, worsens. Almost all commercial tires are developed with emphasis on durability and fuel efficiency because of what they have no acceptable braking efficiency and side stability on wet surface. As the proof serves that three most durable tires - Sava, Fulda and Michelin - all have badly proved to be in tests on wet asphalt.
Tires Sava which are capable to overcome more than 80 000 km possess the highest resource. For comparison we will tell that the average run of passenger tires makes 30-35 thousand kilometers, and tires for SUV - about 40 000 km. The dispersion of results in the test also impresses, and on Sava it is possible to pass 50 000 km more, than on Nokian.
The conflict between durability and coupling on wet covering is perfectly visible by results of Sava and Fulda. Tires with the highest wear resistance have taken the second and third places since the end in the braking efficiency test. Differences between tires in this discipline were essential too and where the car on Apollo will already stop, the car on Kleber will continue to move with speed of 36 km/h. At the same time even Apollo cannot be compared with reference - passenger tires whose braking distance was nearly 10 meters shorter.
"Upon purchase of specialized tires for commercial transport it is necessary to remember that they significantly concede passenger in respect of coupling on wet covering, - experts have noted. - It is necessary to be careful and not to gather too big speeds, especially in rainy weather. It is possible to install passenger tires on many minivans, and in the private sector where run and loads of tires less, this option can be more optimum. At the same time carriers have to consider that as have shown our tests, some commercial tires possess at least satisfactory coupling on wet surface. Let's add also that tire producers need to modify the passenger truck tires that safety, and not just economic aspects, such as resource was one of priorities".
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