Perhaps most commonly, motorcycle storage covers are used to protect your bike against rust and corrosion. Unfortunately, rust is able to form quite easily. All that rust needs to form is for iron particles to be exposed to oxygen and moisture. In the winter, this moisture comes in the form of snow. In the spring and summer, it comes in the form of humidity and rain. Even if your motorcycle is in a garage, the moisture in the air can still find its way to your bike.
In addition, motorcycle storage covers are used to protect against water damage, UV damage, and dust. Most covers have a simple design. All you need to do is put the cover over your bike and clip or zip it shut. That way, not only is the cover acting as an additional shield, but it’s shutting out the outside elements that could otherwise come through the walls and cracks in your garage or shed. If you park your motorcycle outside, this is especially important, as there is no protection at all against the elements.
You might have not considered it, but some owners use motorcycle storage covers even to protect their bikes from thieves. With a storage cover over your bike, its shape and quality are masked, which means it’s less likely to catch the eye of anyone suspicious.