If you want to be quiet, go after the fresh tire test of Ma brand CC7.

This is a tire for comfort and quiet, and it is also a product that focuses on the people. Size coverage 15 ~ 17 inch. Is the German brand ComfortContact CC7 tire worthy of the name? Let's go to Qingcheng Mountain and ask Tao for a try. ...

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Is to love ease.

As I said before, Qingcheng Mountain is not a small series meeting, but German continental did choose to hold a press conference and test experience activities here. Why? The answer set of Sichuan dialect "Bashi" is to match the product attribute of CC7 tire-comfortable and quiet!

I still remember that in 20 16, Bian Xiao participated in the release and testing activities of CC6, the previous generation product of CC7. At that time, the organizers chose a closed venue for various tests. What impressed Bian Xiao was that they erected two "walls" to simulate the scene of vehicles entering the tunnel, and then I drove an Audi A3 with CC6 tires through the "tunnel".

I believe everyone knows that the tunnel is the "magic mirror" of vehicle noise, and the noise and sound waves emitted by the vehicle collide back and forth on the walls on both sides, and the vision is clear. The CC6 relies on a black technology, and the measured tire noise is much lower than that of the fifth generation products!

After the transition from four generations to five generations and then to six generations, I firmly believe that every update of German continental tires is a big explosion of tire technology and performance! Sure enough, CC7 once again verified this point, and partnered with SAIC- Volkswagen Passat to show a higher level of comfort and tranquility than the previous generation in the scenes of mountain roads, urban roads and expressways near Qingcheng Mountain.

German horse brand CC7 tire noise test report

Speed of motor vehicle

Fetal noise

60 km/h

50.3 decibels

80 km/h

50.9 decibels

100 km/h

52.7 decibels

Test vehicle: SAIC Volkswagen Passat 280TSI

Tire size: 205/60R 16

Test environment: cloudy, asphalt pavement.

Don't cut materials just because you are close to the people

In terms of product size layout and price positioning, CC7 is one step closer to the people than the UC7 tire that was recently tested by Xiao. It is also the entry-level product of German horse brand in China at present, but it has not reduced the scientific and technological content. In order to let everyone know more about CC7, Bian Xiao will talk about the core technology of this tire separately from the video!

In order to improve the comfort, CC7 adopts the adaptive flexible tread technology, which makes the tread rigid and flexible when facing the uneven road surface. On the one hand, it strengthens the effective contact between the tire surface and the road surface, on the other hand, it also absorbs the vibration and improves the comfort. On the other hand, CC7 will adopt a continuous tread structure with multi-pitch pattern design, and divide every three shoulder blocks into independent blocks, so as to reduce the impact when the tire touches the ground and further improve the comfort. As for reducing tire noise, both CC7 and CC6 are equipped with variable frequency noise reducer in the main tire groove, and the principle is to reduce the noise peak by disturbing the sound wave frequency in the groove. But the difference is that the variable frequency noise reducer of CC6 is cross-shaped, while CC7 is changed into a double-layer cone. CC7 has the same damping cabin as CC6, but the second-generation technical cabin used in CC7 has different configurations. It uses the principle of Helmholtz vibrator to absorb the high-frequency sound waves generated when the air flows through the tread, thus improving the noise reduction effect. Said a lot, anyway, CC7 is a very comfortable tire, tire noise is very low. It is a product that is very appetizing to most domestic consumers, and the price is relatively close to the people. Want it? See if there is a size suitable for your car!

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