I am trying to get a virtual wind tunnel of this cyclist o understand drag and where things can be placed without an aero penalty. however when importing the cyclist it tells me ‘geometry contains faults’. Is there an easy fix? I have duplicated this cyclist from anther public project.
Hi there,
Thank you for reaching out to us 
As I see, you are importing STL geometry. Fixing STLs may be quite tricky. Generally speaking, the best software to fix a geometry tends to be the same one that was used to built it. You should go back to your CAD and fix the errors, for example:
- Bad surfaces
- Intersecting parts
- Small gaps
Here, you can see the problem with the model.
You can also read more about it on How to Find Faults in the CAD Model?
Good luck!