Designed to be used for sports purposes. The brake is characterized by a very solid structure, it is powder coated. The diameter of the piston of the master cylinder: 0.7 "The set includes the elements shown in the pictures below: a handle with mounting, a master cylinder. - AN4 - 7/16 "outlet - AN3 - 3/8" Connectors for rigid (copper / steel) or flexible hoses and sports brake hoses are available in our store. Installation on flexible hoses does not require a specialist hose clamp. braking systems The standard is the size AN3 & nbsp