The bopworx bop bumper is their original design and innovative product that has got them to where they are today the product has been designed to fit anywhere on your bike to stop scratches and dents when your bike is in transport the bumper features a flexible loop and hook attachment system that allows for use on larger frames sizes and difficult to fit areas of your bike like your chain stay or even your chain set overall if you are taking your bike on longer journeys on planes in vans