I'm thinking that a bike being covered by a tarp or canvas could be a theft deterrent. I guess it would have to have large enough eyelets to secure it with or under the bike. Where I work there are workers that are outside, and customers going in & out, so I think that situation might also keep bike theives away. I don't live in the city, out here in the country, and not that I'm overly concerned about this, just wondering if anyone covers their bike. I'd say it's good to keep the uv rays off the seats and other things that might dry up, not to mention dust or rain. I'd probably have to secure it to a tree near the building.