Steel frame
The Steel frame has the advantages of low cost and simple manufacturing process, and it has relatively high strength. However, the carbon steel frame is relatively heavy and prone to rust, so it needs good anti - rust treatment. It is more commonly seen on some low - end electric bicycles.
Aluminum alloy frame
The aluminum alloy frame has the advantages of being lightweight, high - strength, and corrosion - resistant. It is widely used in mid - to - high - end electric bicycles and electric motorcycles. The manufacturing process of the aluminum alloy frame is relatively complex and the cost is relatively high. However, it can reduce the overall weight of the vehicle while ensuring its strength, which is beneficial for increasing the electric vehicle's range and handling performance.