This hydraulic brake master cylinder reservoir kit features a pump piston bore size of 12.7mm and is designed for motorcycles with 7/8 inch (22mm) handlebars.The set includes CNC hydraulic clutch levers, brake handles, and a master cylinder pump suitable for sport bikes, dirt bikes, scooters, pit bikes, and ATVs within the 50cc to 300cc range.Included braided stainless steel lines measure approximately 100cm in length and offer a working temperature range from -70 to +265 degrees.These components serve as replacements to restore braking and clutch function. Important: This is a non-OEM part.Any brand or model cited is used to denote device compatibility.