.top{margin-bottom:30px;}.top li{margin-left:5%;margin-right:5%;margin-top:10px;line-height:120%;list-style-position:outside;}Magura MT4 Disc Brake Master Cylinder Assembly Aluminum Levera;. Master cylinder assemblies for Magura brakes include a master cylinder lever blade and handlebar clamp. Hose fittings and line are sold separately. Flip flop design allows unit to be mounted to either the left or right side.