The family has a six-year-old child, who is in the prime of primary school; Another wife takes the bus to work every day; I have a car. Someone here will ask, why does my wife have to take the bus when there is a car? Because the children are only allowed to arrive at school after 7:30 every day, and the wife must arrive at the commuter station before 7:30, so she can only be willing to give the children away. My wife has also tried to ride a bike to work. However, her physical strength is limited. In addition, car thieves are rampant. She lives on the third floor and has no elevator. In one year, she has lost two cars. The electric car is too heavy and more expensive, so she has to squeeze the bus. The bus has to make a transit to the commuter station, I am also drunk, so the three or five kilometers from home to work every day is already a pain point for our family of three. I believe this is also a pain point for people with the same situation as me. But now, I have the flywheel Weir Big Fish A1 electric scooter, and now I can announce that "DYU A1, with its light and fast, has cured my pain points of three or five kilometers from home to work!"

received Love to play computer games On the day of the big fish driving, a big spring snow just fell in Shenyang! The air is particularly fresh, and I feel very good after receiving Big Fish A1. In this evaluation, I would like to break the routine, first take you to know the specific riding situation of Big Fish, and then we will further understand other specific details of the car.

  From the video above, you can see that this is an ordinary bicycle, but I believe you can feel the compactness of this bicycle, and you can also see from the man's buttocks that my weight is more than 75 kg, and this compact bicycle supports my body of more than 150 kg without any effort.

As for this video, you can see that my legs do not ride because I use the pure electric mode of the Big Fish A1. I believe you can still see that this small bike is not slow when it carries my body of more than 150 kg in the electric mode. Here I will first propose the first advantage of Big Fish A1: Powerful and compact!

As mentioned above, it is full of power and small in size. Indeed, if I had not understood the actual functions of Big Fish A1, I would definitely think it is a folding bike with high appearance, but I would never have thought that it also has the function of electric power assistance, because the battery volume of electric bicycle in my impression would be very large.

I believe you have a preliminary understanding of Dayu's car. Now let's introduce Dayu formally:

Chinese name: Big Fish

English name: DYU

Gender: neutral

Birthday: February 22

Height: 222cm

Weight: 222 kg

Native place: Free Planet

Flywheel Weir, the mother of Big Fish, is a star enterprise of scientific and technological innovation in China. It has received nearly 20 million yuan of investment from well-known institutions. Its core team comes from Huawei, Baidu, Mindray and other international famous enterprises.

After learning about the ride of Big Fish Wisdom Drive, I believe you also want to know the specific details of the car. Let's start with the frame, because the frame is the soul of the car! A good frame determines the riding comfort, handling sensitivity, stability and overall safety of the car.

Dayu A1 adopts a unique folding design. Through the overall adjustment of the beam, pole and seat, it not only enhances the overall stability and convenience of the frame, but also makes Dayu Smart Drive have a longer service life. It needs to be emphasized here that just because the Big Fish A1 is a folding car, it puts forward higher requirements on the stress design and material selection of the girder. If the folding part can not withstand greater external forces, then my big butt of more than 150 kg will suffer sooner or later.

A1 frame is made of reliable aviation grade material, which combines lightness and toughness, and can weigh up to 100kg. So it's no problem for me to weigh 145 kg. This is the second advantage of Big Fish: The frame is stable and the material is tough.

Then let's talk about the battery of Big Fish A1. When I mentioned the first advantage of Big Fish, I already mentioned that it is full of power, and good power naturally needs battery support. A1 is equipped with a set of 18650 power type lithium batteries of the same model imported from Tesla with 5.2AH LG original packaging, which can achieve rapid, stable and fast charging. It can be fully charged in three hours, and the once assisted endurance can reach 55KM+, which also makes Dayu DYU A1 have excellent endurance performance in the same level of motorcycles.

The key is that the size of this group of batteries is too small. Look carefully. From the picture above, can you see that there is a group of batteries hidden here? In addition, A1 is also designed with a BMS battery management system. The main function of this system is to avoid damage to the battery due to long-term charging. This is well understood. In my habit, I connect the car to the power supply before going to bed at night, then fall asleep, and unplug the power supply after waking up. As for when to unplug the power supply, it depends on how long to sleep. In addition, the battery management system can also fully protect the internal short circuit, undervoltage, over discharge, etc. of the battery to prevent the battery from losing too fast, so that the power supply can have a longer life and the current output is more balanced.

In addition, Dayu also has a DTST intelligent power assist system, which can be controlled by the code meter on the handlebar.

The so-called DTST intelligent power assisted system is to enable Dayu A1 to ride easily in different road conditions, because the system has designed five cycling modes, namely, non power assisted fitness gear, power assisted economy gear, power assisted balance gear, power assisted reinforcement gear, and pure electric gear. The corresponding numbers are 1.2.3.4.5. At present, most e-bikes generally do not have a pure electric riding mode, so at the moment when electric vehicles are still widely used, the addition of pure electric gear of Dayu Smart Drive is more consistent with the use habits of Chinese people. This is the third advantage of Big Fish: Endurance, full of power!

Then let's talk about the bicycle seat. It conforms to the ergonomic design, and the material is very soft. It is suitable for a long ride.

In addition, the height of the seat can be adjusted as needed. Even if you are 1.9 meters tall, Big Fish A1 can easily meet your needs.

The 14 inch wheels have thick tires, which is one of the guarantees for weighing 100 kilograms.

At the rear wheel, Dayu A1 is equipped with a 36V/240W toothed brushless motor as the driving device of the car. The power of this brushless motor is relatively high among similar products, which also allows me to fully feel the full power of A1 during the actual riding process. Even if I sit back and become an adult, A1 can easily start.

Having said the above, let's talk about the size of the car. It can be seen from the above label that this size is not much larger than the baby stroller on the market.

Look, my son is six years old and can also ride easily.

Finally, let's talk about the folding problem of the car. There are three steps to install the elephant in the refrigerator. Folding the DYUA1 is as simple as that. As long as all the places with locking buttons are pulled open, the folding is OK. The whole process is about 20 seconds, which is so easy.

It is also very convenient to open by folding.

The key wife is satisfied. She can also bring a bike to the mall, which saves her worry and effort!

Winter is over, and Spring Girl is coming! In this pleasant spring, take a big fish with you, take your wife and children, find a riverbank full of spring, and watch the children play with their cars. It's really fascinating. I believe that through the introduction in the face language, you also have a deep understanding of the overall situation of Big Fish. At the end, I will report to you a little more. Through my actual cycling for several days, I have cycled less than 10 kilometers every day. During this period, because I often try various modes, I actually need to charge once every four days. If I can often use gear 2 or gear 3, I can charge once every six days, This result is quite good.

Finally, in addition to the advantages of Big Fish A1 mentioned above, here are also some disadvantages, hoping to help the manufacturer improve all aspects of the product in the next step.

1. The degree of intelligence is not enough. The mobile phone can't be connected, GPS positioning can't be realized, and more detailed data can't be recorded. Especially without GPS, the lost car can't be found. What's more, such a light car is very easy to be pulled by people.

2. The operation instructions in the manual are not very detailed. They only introduce the basic functions, such as the way to turn on the backlight of the night code meter, which I found myself.

3. The parts are extra, the bell, lights and basket are not equipped.

4. A plastic protective cover should be installed below the connecting pipe of the car seat to prevent scratching the ground.

5. Finally, it is recommended to add the remote motor locking function of the car to prevent theft more effectively.

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