When judging the quality of the frame, first look at the frame's thickness and the steel tube thickness.
High-quality frames have significantly larger and thicker steel tubes, and the surface anti-corrosion treatment is more refined. They feel smooth and even to the touch, and light tapping generally won't leave any marks.
Next, observe the welding of key parts. High-quality frames use robotic welding, resulting in very neat and solid weld seams with a fish-scale pattern that cannot be achieved manually.
The battery is a crucial component of an Electric Car, and its performance and lifespan are also related to the brand. It's recommended to choose a well-known brand for better assurance and peace of mind.
For lead-acid batteries, brands like Tianneng, Chaowei, Nandu, and Jingqiu are reliable, and most Oil Electric Hybrid Sedan currently use these brands.
Regarding brake quality, disc brakes are superior to drum brakes. Disc brakes also have a more aesthetically pleasing appearance, with a more metallic and muscular look. This is obvious; riding one will allow you to feel the difference in braking performance.