Trả Lời Tại Sao Xe Đạp Thể Thao Có Nhiều Tốc Độ và Đi Nhanh Chậm Khác Nhau

Hello everyone, welcome to my channel After a long time of selling motorbikes, I received a lot of questions from people who have just approached the sports bike line The question is, which speed is the fastest, which speed is the slowest and which speed is the lightest? In this video, I will explain to you which speed is the slowest and which speed is the fastest And why is it like that? In this video, I will explain to you why it is like that As you can see, all sports bikes are equipped with at least one disc and a lot of lips on the back This is the disc, this part is called the disc And the lips are on the back The disc will move the lips to move the lips and rotate the wheels by this chain Most sports bikes must have multiple discs and maybe one disc For example, I have this bike with a 3-layer disc As you can see, it is a 3-layer disc And if there are a lot of bikes, there is only one disc Now I will explain to you, if this is a 1-layer bike, I will put it through the disc This disc will keep the 1-layer disc I will explain to you why changing the lip will change the speed And the disc will move When you learn about transmission rates in our 3rd grade physics You will see that the number of teeth of this disc will change greatly The outer disc has the least teeth and the inner disc has the most teeth The inner disc has the most teeth and the outer disc has the least teeth The inner disc has the most teeth and the outer disc has the most teeth One rotation of the inner disc only rotates 3.5 to 2 rolls with large teeth When I go with a lot of teeth, the bike will go slowly Because 1 rotation of the disc only rotates about 2 times the motor by increasing the speed of the motor by increasing the speed of the motor, The small plate and the small clip will be used in the case of climbing up the slope The big plate or the small clip will be used in the case of going at a fast speed but on a flat road The small plate or the small clip will be used in the case of going at a fast speed but on a flat road