Since the car was picked up in 2010, the quality of Corolla’s car can be said to be impeccable. Except for replacing consumables (filter elements, wipers, tires), the vehicle has not experienced any faults. It has also been replaced several times in recent years. The tires are basically all made of German horse brand TC6. This tire is also very good and very quiet. Now, it has been two years since the last time the tires were replaced. In the past two years, this car has traveled nearly 90,000 kilometers. It is time to replace the tires. I saw that the German horse brand CC7 tires are on the market online, so let’s try this new tire this time.
I have been traveling on a business trip, and the installation can only be arranged on weekends. I made an appointment with the store and went there in the morning to change the tires. This car shows that it has a mileage of 250,000 kilometers.
Four brand new 195/65 R15 German Horse CC7 tires
The color measurement mark line on the tire shows that it is also a brand new set of tires
Through the stickers on the tires, the words COMFORT+ can be seen that this is an upgraded version of the more comfortable tire.
This is the original German horse brand TC6. Although the wheel hub has been completely changed, the tread patterns are basically not worn out.
Put on the jack and prepare to replace the tire
The comparison of the removed TC6 and CC7, the same size, different models, what kind of new experience can it bring to me
I have started picking tires and put on the tire picking machine. I have seen this process countless times and am basically familiar with the entire process of replacing tires.
Talk about removing the tire from the wheel hub
After installing the new CC7 on the wheel hub, dynamic balance needs to be re-performed. This is a machine that performs dynamic balance
The dynamic balance is very ideal. I have known this master for several years. Every time I ask him to change the tires. The data after finishing is 00, which is a perfect dynamic balance effect.
After replacing the front wheels, start replacing the rear wheels, the same process
Finally, the old master used a sleeve to tighten each tire again, and did things very strictly
perfect
Let’s talk about how we feel in the past few days after changing tires. I previously knew that the CC7 is equipped with a frequency reducer, which effectively reduces noise by changing the vibration frequency in the grooves. At the same time, the upgraded second-generation resonant muffler cabin can effectively absorb the high-frequency sound waves generated when the airflow flows through the tread, improve the muffler effect, and further reduce the noise level inside the vehicle. The closed shoulder design further reduces noise. At the same time, this German horse brand ComfortContact CC7 adopts a new reinforced compound network structure, which can effectively increase the life of the tire. Through the real driving of these things after changing tires in the past half a month, I have already felt that the mute effect is very obvious, and the tire noise is almost inaudible. As for the life of the tires, based on the use of German horse tires in recent years, I believe the effect will be very good.
BartFerdinand 
5 
September 3, 2024 
