well i'm in college and i'm thinking about bringing my nicer road bike here for occasional recreational use while i still use my mountain bike for getting around and some fun too. but, it turns out, i can't keep a bike in my dorm, and i don't want to leave my cannondale out in the rain. so, if i left it on the rack outside, what would you all suggest for a cover? do you think a soft breathable motorcycle cover would keep all the water out? i could surely tie it up under the wheels to get a full seal, but would it get wet and moldy in there? i've also though about getting a couple VERY big trash bags, used for those big industrial trash cans that you might see at a cafeteria. would these condensate inside and leave me with a big mess inside after i come back to it after a week of alternation between rain and 90 degree days? these would be secured tight around the bottom too, to prevent splashes up. any experience with this?