This motorcycle hydraulic hand clutch master cylinder rod system features a 14 mm diameter piston and a 15 mm stroke length.It functions as a transfer pump for hydraulic clutch systems and is compatible with a range of motorcycle models.The rod assembly includes an adjustable anchor head that accommodates varying distances between the master cylinder and clutch lever.Adjustment is achieved via threaded engagement, and the mounting thread specification is M10x1.25.Some applications require removal of existing threading using an 8.2 mm drill bit to install the unit.Installation requires bleeding the hydraulic system to remove air: fill the reservoir with brake fluid, connect tubing while leaving the bleed screw slightly loose, position the master cylinder with the reservoir elevated, actuate the lever approximately ten times, allow fluid to flow from the open bleed port, then tighten the screw once a steady without bubbles is observed.Final verification is performed by pulling the clutch lever; travel should be approximately 3 cm with firm resistance and no bottoming out.Compatible with motorcycles requiring a 14x15 mm piston master cylinder rod system.