Magura MT5 PRO is Magura’s top model for more demanding E-Bike use, the MT5 PRO is a 4-piston brake caliper weighing in at 255g with a Carbotecture Master Cylinder and a 1-finger style brake lever. Magura MT5 PRO is Magura’s top model for more demanding E-Bike use, the MT5 PRO is a 4-piston brake caliper weighing in at 255g with a Carbotecture Master Cylinder and a 1-finger HC lever blade.