According to the information you provided, the brand of this bicycle is "Phoenix", but it is not certain whether it is a fake. Generally speaking, knockoffs refer to counterfeit or counterfeit brand goods, but in this case, we can't be sure whether this bicycle is counterfeit or counterfeit.

If you buy a real Phoenix bike, its trademark should be "Phoenix" or "Phoenix", and there will be relevant official authorization certificate. If you are not sure about the source and authenticity of this bicycle, you can try to contact the official channel of Phoenix brand bicycle or the dealer authorized by the relevant brand for consultation and verification.

In addition, the quality of bicycles depends not only on the brand, but also on factors such as manufacturing technology, material and design. If you are in doubt about the quality of this bicycle, you can check whether its parts are complete, whether the welding and assembly processes are fine and whether the materials are of good quality. If these aspects meet the requirements, then this bicycle may be a real Phoenix brand bicycle.