Additionally, there are some misconceptions among the public regarding belt-driven bicycles. The principle of belt transmission in these bikes is fundamentally different from that of motor vehicles. In the former, belt drive consists of a closed-loop rubber belt with evenly spaced teeth on the inner surface running within grooves on pulleys that have corresponding teeth. During operation, the teeth on the belt mesh with the grooves on the pulleys to transmit motion and power—whereas motor vehicles lack such grooves. As the longitudinal strength of the belts continues to improve, the engagement technology becomes tighter and more stable, completely resolving the issues of slipping and chain dropping. It is reported that Shenzhen Liangge Lunzi Co., Ltd. has earned widespread acclaim both within and outside the industry with its “One Thread Precision” (where one thread equals 0.01 millimeters, about 1/5 the diameter of a human hair) technology, making the concept of “never dropping a chain*” more of a reality.
*Friendly reminder: “Never dropping a chain” typically means that, under normal circumstances and compared to chain-driven bicycles, the likelihood of chain dropping is close to zero, with a minimum duration of 100,000 kilometers, including the belt’s lifespan—but does not cover accidents or special circumstances.