Here is the scenario.  I used to throw my bike in the back of my car with towels covering the chain, crank, and cassette carefully so I wouldn't tear my seat or get lube on everything.  No need for that now the CHAIN JOHNNY is the deal.  Just put it on your bike and put your bike in the back of your car.  Maybe you even set it on top of your leather seats?  No problem this protective cover goes on and off very easy.  The CHAIN JOHNNY by WHITE LIGHTING is a cover for your whole bike transmission.  No more grease marks on you or your car. 

You need to remember one thing, you can not roll or pedal the bike with this cover on.  I was so excited to have the cover in transition at a duathlon, I forgot to take it off.  When I went to pedal I looked down and could'nt. 

It is really nice to have on the bike for moving in and out of cars and for travel on my car rack. One of our testers commented, "I put the Chain Johnny on while packing my bike to ship to another state for a race. It was a big relief knowing that I had the extra bit of protection between my bike and the UPS man... traveling around in the rental car days before the race, it was awesome to know I wasn't going to pay for grease marks. LOVE this product!"

This protective cover has Velcro seams to keep the cover on snug.  For $19.99 this is money well spent, check it out.  http://www.whitelightningco.com/products/index.htm