1mm wedge for cylinder base. High quality machined aluminum. Made in LUXEMBOURG for RRD . Original shape to be adaptable to all MOTOBECANE AV7 cylinders. Allows the increase of the diagrams for the installation of long stroke crankshafts (in combination with base gaskets).
Also allows to correct the defect of the PARMAKIT cylinders which are delivered too low! Made in small series in quality materials, which explains the slightly high price for this small piece.
One of the best crankshaft on the market with top balancing, revised and corrected lubrication and of course with a top finish as usual at AIRSAL. Here is the direct competitor of the famous DOPPLER Endurance crankshaft.