Hi, We have a 2014 cr-v ex with flush mount rails yet no crossbars as of yet. We want to pull it behind our motor home and hope to travel and boon-dock etc. extensively and want to carry a lockable rooftop cargo carrier, perhaps a bicycle as well, yet are worried about theft of cargo and possibly rails to boot. I see the "bright lines" crossbars n Amaz** etc. that I'm sure are fine without spending a fortune for gem etc., but I don't know how those could be secured short of heavy-duty thread lock (blue I believe...) but could see living to regret that if/when wanting to remove. I see Thule and Yakima and perhaps others have locks for theirs...but really hoping not to have to fork over $$$ for mere cross-rails. Does anyone have any thoughts or recommendations to share? It would be Very Much appreciated! Thanks!