There is finally a mod that fixes the Speeder and Skimmer animations. Now Claude will no longer have legs outside of these vehicles, however you will need the ASI loader to install this mod.
Original author: DimZet
It is recommended to install it together with the Ocean Without Pipelines mod, to remove obstacles in the form of water. You already know the way to install it — installation in modloader.
Works both in the original version and in Updated Classic, Classic Edition.