Are the handles on the side of the rack solid or hollow. I want to drill into them for a mount point. If its solid or thick enough I'd like to tap it. If not then it would mean bolting thru it. Has anyone did this?
It's a casting. Unless somebody has developed some way to create a hollow in the middle of a casting without showing any evidence on the outside, it is solid. Be aware that drilling a casting will weaken it.