I had the Aceribs rally pro's and the sides dented in really easy. I now have Cycra probends and they're super beefy, ocasionlly they will slip but all bar mounts do sometimes. FYI on the new Cycra CRM mount kit: the clamp mounts down on the straight section of handle bar right above the fork tubes. The WR fork cap sticks up and interferes with the clamp. I had to return mine and get the strandard mount.