Cylinder base block DOPPLER thickness 1mm for DERBI euro 1 & 2

High quality shim from DOPPLER, in aluminum machined on a CNC machine, thickness 1mm. It will be ideal for mounting a crankshaft in long stroke 42mm on a cylinder (kit) provided for a normal stroke 40mm. It can also be used to enhance your diagrams. Its base is well tuned to the original cylinders, AIRSAL, BARIKIT, MALOSSI MHR TEAM ... and other brands. It will be easily adjustable to other cylinders because it is made of aluminum.