This is a disc brake pump specifically designed for modifying four - wheel and three - wheel go - karts on drift tracks. It is also known as a brake oil pump, master cylinder, and upper pump. With meticulous design, it can perfectly meet the modification needs of go - karts and provide excellent braking performance for them. This disc brake pump comes in two specifications, 12.8 and 15.8, which can meet the diverse needs of different users. Whether driving at high speed on the drift track or in need of emergency braking, it can ensure reliable braking effects, bringing a safe and exciting driving experience to the driver. Its design fully takes into account the usage characteristics of go - karts in special driving states such as drifting, helping drivers to freely race on the track. It is sold in a wide range of areas, covering Africa, Europe, South America, Southeast Asia, North America, Northeast Asia, the Middle East and other regions, and is highly favored by users around the world. If you are looking for high - quality brake accessories for your go - kart, this disc brake pump is definitely a great choice.