Cylinder Stroke Control FARMEX/SPEECO CYLINDER STROKE CONTROL SEGMENTS Designed to control the stroke on air or hydraulic cylinders Fits: 1-1/8", 1-1/4", 1-3/8" and 1-1/2" diameter shafts; aluminum. Segments: 3/4", 1", 1-1/4", 1-1/2". Carded