What are the differences between China III motorcycles and China IV motorcycles?
2 Answers
The differences between China III motorcycles and China IV motorcycles are: 1. Different markings: China III motorcycles are marked as 'China III'; China IV motorcycles are marked as 'China IV'. 2. Different number of processing systems: China III motorcycles have one muffler; China IV motorcycles have two mufflers. 3. Different traffic restrictions: China III motorcycles can enter within the Sixth Ring Road; China IV motorcycles are not subject to any restrictions. 4. Different engines: China III motorcycles use direct injection in the cylinder with a large pump fuel supply method; China IV motorcycles use electronic fuel injection in the cylinder with a common rail fuel supply method. China III motorcycles comply with China's third-stage vehicle emission standards. China IV motorcycles comply with China's fourth-stage vehicle emission standards.
I've been closely following updates in environmental regulations. Compared to China III motorcycles, the most significant upgrade in China IV models lies in emission control. China IV vehicles must replace old carburetors with electronic fuel injection systems, which reduces carbon monoxide emissions by over 70%. From my experience, EFI systems are indeed more fuel-efficient - saving about 0.5 liters per 100km for models with the same displacement, translating to substantial long-term savings. China IV standards also mandate OBD diagnostic systems, essentially giving motorcycles a self-check chip that triggers dashboard warning lights when emissions exceed limits. These modifications increase new vehicle costs by approximately 10%, but considering major cities are gradually banning China III bikes, choosing China IV is the wise decision - both environmentally friendly and ensuring future road access rights.
