Abstract: A caging arrangement for setting a spring height and correspondingly chamber size in a master cylinder. A cylindrical member has a convoluted surface that is placed in a bore of a piston and a ball is pressed into the cylindrical member to radially expand the convoluted surface into engagement with the piston. A spring is placed on the piston and a disc placed on the spring. A first end of a valve stem having a radial projection is passed through the disc and a force applied to the valve stem while holding the piston stationary such that the radial projection engages and outwardly moves an inward flange on the cylindrical body to allow the radial projection to move past the inward flange. The force is removed and the spring expands until the radial projection engages the inward flange to set distance between the piston and the valve stem.