MAGURA Storm HC Disc Rotor 6 Bolt ISOMagura established itself early on as a pioneer of hydraulic brakes for bikes. Since introducing their first hydraulic disc brake in 1987, Magura has continued to evolve as a company, refining products year after year with the kind of German precision that continues to raise the bar. The newest Magura Storm HC rotor utilizes a 2. 0mm thickness for optimum performance and features enhanced cooling performance in various conditions resulting in a