Liu is an ordinary office worker who rides an electric bike to and from work every day, shuttling through the streets of the city. For him, this electric bike is not only a commuting tool but also a great companion that has accompanied him through countless busy days.

One day, Liu rode his electric bike to work as usual. At an intersection, he was about to slow down and turn. However, when he squeezed the brake, he found that the brake felt soft and had almost no braking effect. The bike showed no sign of slowing down and continued to rush forward. Liu was immediately panicked. Fortunately, he reacted quickly, squeezed the brake tightly in time and stepped on the foot brake vigorously. Only then did he barely manage to stop the bike just before it hit the roadside obstacle. This sudden situation made Liu break out in a cold sweat, and he realized that there must be a serious problem with his electric bike.

Still in a state of shock, Liu pushed his bike and carefully went to a nearby electric bike repair shop. The repairman first conducted a preliminary inspection of the electric bike. He tried squeezing the brake to feel the braking force, and then carefully examined the appearance of the brake lever and the brake caliper, but found no obvious damage. Then, the repairman started to check the brake cable. He gently pulled the brake cable and found that it moved smoothly, but the brake didn’t respond normally. It was very likely that there was a break or wear inside the brake cable.

To further determine the problem, the repairman decided to remove the brake cable from the bike for inspection. He skillfully used tools to unscrew the screws fixing the brake cable and detached the brake cable from the brake lever and the brake caliper. When he pulled out the brake cable completely, he found that some of the steel wires in the brake cable had broken, which was the culprit causing the brake failure.

The repairman explained the situation to Liu and took out several different models of brake cables from the shop for him to choose from. These brake cables differed in material, quality and price. Some brake cables were made of high-strength steel wires, which were more durable but relatively expensive; some were more affordable and suitable for daily use. Considering that he rode a long distance every day and had a high requirement for the reliability of the brake, Liu chose a brake cable with good quality and a moderate price.

After deciding on the brake cable, the repairman started to replace it. First, he inserted one end of the new brake cable into the mounting hole of the brake lever, and then guided the brake cable slowly along the cable groove of the bike frame to the brake caliper. During this process, the repairman paid special attention to preventing the brake cable from being twisted or knotted, so as not to affect the braking performance. After the brake cable reached the brake caliper, the repairman accurately installed the other end of the brake cable in the fixed position of the brake caliper and tightened it with a screw. After the installation was completed, the repairman carefully adjusted the tightness of the brake cable to ensure that the brake could respond sensitively and that the brake lever would not be too difficult to squeeze due to excessive tightness.

Finally, the repairman carried out a comprehensive debugging and inspection of the braking system. He squeezed the brake lever repeatedly to observe whether the movement of the brake caliper was normal and whether the braking force was appropriate. After multiple tests and confirming that the braking system had returned to normal, he confidently returned the electric bike to Liu.

With a nervous heart, Liu got on the electric bike and went to the intersection where the brake had failed before again. He carefully squeezed the brake. This time, the brake responded quickly, and the bike decelerated and stopped smoothly. The big stone in Liu’s heart finally dropped, and he spoke highly of the repairman’s skills.

Through this experience, Liu deeply realized the importance of the brake cable for the safety of the electric bike. He also reminded other electric bike owners to regularly check the condition of the brake cable. Once any abnormality in the brake is found, it must be repaired in a timely manner to ensure riding safety. Since then, Liu has paid more attention to the maintenance of his electric bike. He checks the key components such as the brake before each trip to make his travels more reassuring.