Travel to Cut-Off Explanation
All master cylinders except the CP6093 type have triple bypass ports.
The standard short cut off cylinders 0.68mm to 1.09mm (0.027" to 0.043") should be used for normal applications and especially where rapid fluid return is required when changing pads. Extra short cut off is 0.48mm to 0.63mm (0.019" to 0.025") are available in most styles and are identified with an 'E' suffix