1. Accessories of brand-name bicycles, such as frames, tires, flywheels and other parts, are marked with the name or trademark of the manufacturer; Most counterfeit bicycles don't have a trademark that matches the license plate. Most of them are assembled with messy accessories.

2. The main parts of brand-name bicycles are marked with specific patterns or imprint marks. For example, the frame, handlebar, guard chain and other parts of the "Flying Pigeon" brand bicycle are all provided with flying pigeon patterns or characters; The counterfeit bicycle parts are complex in model and have no specific identification and marking. Even if there is, it is hand-carved, which is rough.

3. The electroplated parts of brand-name bicycles have bright and shiny surfaces, uniform thickness and good texture; The fake bicycle is clear, rough, autogenous, mottled, dull and uneven in coating.

4. The paint of brand-name bicycles is bright, smooth and not easy to fade, and the decals are bright; The painting process of fake bicycles is simple and backward, with uneven paint surface and uneven color, and can even be removed with nails. Trademark patterns are mostly hand-made, rough and difficult to identify.