4pis ( piston ) Brembo Monoblock calipers 100mm Details actual scale 1:1 3D file for Machining. Using by Ducati Monster 1100S Created by measuring on the actual parts, so all interfaces are 100 % true.There are 3 versions, actual scale 1:1, scale 1:2and scale 1:12Step file and STL file (build 3D models for printing)I am creating scale versions to 3D print as display models.