A system to suspend a bicycle while it is worked on. Often clamps to the top tube or seat post. Sometimes called workstand.
A repair stand holds a bicycle at a useful height for maintenance, assembly, repair, or other work. Some stands are free standing. Others are mounted to a table, wall, floor, or ceiling.
Many repair stands have a large clamp to hold the top tube or seat post, but some string up a bicycle with hooks and cables.