Continental Race 28 Inner Tube 700 x 25-32C Presta Valve 42mm (Pair) - Wide Continental has a success story until 1871, when the company was first founded in Hanover Germany. Wherever people turn their mobility ideas into reality, we are ready to support them. It is a common thread that goes through every era of our story. Our technologies, systems and service solutions make mobility and transport more sustainable, safer, convenient, individual and affordable.