What is the difference between China III and China IV motorcycles?

[SanHarley]

The main difference between China III and China IV motorcycles is that China IV motorcycles have lower sulfur content and significantly reduced pollutant emissions compared to China III. Relevant information is as follows: 1. The emission standards of motorcycles can be referenced on the motor vehicle certificate, which usually indicates the compliance level. 2. Motorcycles compliant with China IV emissions have lower levels of pollutants in their exhaust. As global environmental pollution becomes increasingly severe, countries worldwide are implementing stricter emission standards, which benefits environmental protection. It is recommended that consumers choose motorcycles that comply with the latest emission standards when purchasing.