To expand on what I did, I shared the topology of all of my bodies in SpaceClaim. Moved to ANSYS Mechanical and changed the Rim to Rigid and left the remaining bodies as Flexible. I have expanded the tree, in which you can see that the Rim is a rigid body. What I also find strange is that when the Rim is set to Flexible (which is the default) the question mark is not there. Does this mean that when sharing the topology I have to exclude the Rim-Tyre connection? nTo clarify, the Rim is one solid rigid body and thus cannot be fixed.nRegarding the meshing, thank you. I will go though the video and will get back to you if I run into any issues. n