Magura HC3 Radial Brake Master Cylinders 17mm - 19mmWhere professional quality is a must, there is quite simply no alternative to the HC3. Weight, performance, ergonomics and control these criteria have been ingrained into the HC3s development. The overall performance of the HC3 exceeds the most demanding requirements. High quality aluminium is the basic material used in the construction of the HC3. The master cylinder is fully machined from solid aluminium and its this production process that unifies