Challenge to model Chain Pedal and Oil Tank

Hello,

Here is my google drive link containing folders of Chain, Oil Tank, and Pedal, along with the block parts.

https://drive.google.com/drive/folders/1y4u5K0SGE_LbwPFwAXu2TDbPTL4ZXVDa?usp=sharing

Thank You,

Regards

Aditya Shaw