Off of ebay. I bought one of those motorcycle covers that are advertised.

I put it on over the bike in the garage about 3 months ago.

Maybe because of the super humidity and temps around here I guess
but I took it off the other day. The whole bike , sweat I guess would
be the term. I took that thing off...

 

If you're really in 90210, try Pep Boys. They are pretty cheap (I think around $50) and I am really happy with it.

 

Look at it this way, it will keep the bike dry out in the rain. Anything that doesn't breath is gonna trap moisture. For a bike stored inside a cotton sheet does a better job.

 

Condensation often occurs when you have frequent temperature swings. This has been a common situation this winter with the frequent warm spells around the country. To help reduce the problem place a small (25 - 40 watt) light bulb under the covered bike or you can use a small fan (think computer box fan) under the bike to keep some air moving.

 

I purchased one off of Ebay also.
So far so good. Mine has vent flaps that velcro down on either side by the mirrors though.

 

+1

 

Their are $30 covers and their are $300 covers just because its costs more doesn't mean it works better. I have found all covers trap moisture, you have to take them off regularly to let things air out.

 

I bought a cover off eBay for like 25.00. I only use it when the bike is parked at the office to keep the sun, the occassional sudden showerand the birds off the bike. For that it works Great!