Master Cylinder 1-1/4in Bore 3/8in/1/2in Ports

Master Cylinder - 1.25 in Bore - Original Style - Integral Reservoir - Iron - Kit / FRONT brake port accepts 3/16 steel brake line with 3/8-24 inverted flare nut. REAR brake port accepts 1/4 steel brake line with 1/2-20 flare nut (with included adapter) or 9/16-18 flare nut by removing adapter.Master Cylinder is Cast Iron.The stroke on this is 1. Mounting Flange Center to Center Distance (in): 3.250 in