美国采购需求：三头肌绳、阻力带手柄、人体工学哑铃、地雷架、附件配件、杠铃地雷球

I'm reaching out regarding the assembly of the spinning bike I recently purchased. I've come across some major issues with the assembly instructions provided. They list a total of 85 parts, but after inspecting the box, I found that not all components are included. This discrepancy is causing significant confusion and hindering the assembly process. I would really appreciate it if you could offer some assistance in this matter. Specifically, it would be helpful to clarify which parts are essential and whether any additional components are necessary for successful assembly. If there's a more reliable set of instructions or a customer support line available, please let me know. Your prompt response would be greatly beneficial!