You will need to put something in as a stop, without it you can basically cut the stand in half eventually that's if you are lucky, if not it might foul the chain and cause a mishap. On my bikes I just booted an old bit of 20x20mm angle iron on, looked horrid but you don't see it if your riding. I had a sidecar fitted so never noticed the chain sawing it's way through the stand, being as it was so heavy you never moved it without the engine running. It got well past halfway through the stand before I spotted it.