Scicon Bicycle Gear Cover The Scicon Bicycle Gear Cover is a great protector for your car seats, saving them from any dirt, grime and grease from your drive chain. If you\'re the sort of person who travels a lot with your bike, or if you transport your bike or components a lot in your car, then a cover could be just what you need. - T.H Key Features: Covers chain, front and rear derailleurs. Easy click fastener for easy assembly using Velcro straps. Made from Supertenax 210/120, waterproof and no-stain fabric. Weight: 42g (Manufacturer claimed).