I put them on mine to protect the tops from scuffs and scratches. Made sure the top was clean so no dirt was between them and the top lid. Just make sure you place the velcro tabs properly to keep it tight. Works great imo, took them off this winter and the lids looked as clean as when I put them on. Put a bra on the faring also to protect it from rock chips and such plus a leather tank bra. Knock on wood, not a scratch on the bike so far.