reed valve assy / membrane block for Piaggio / Derbi engine D50B0, EBE, EBS

Replacement diaphragm block with plastic diaphragms. Unlike many original diaphragms made of metal, this diaphragm block uses plastic diaphragms. Metal diaphragm plates could cause severe engine damage if broken. Plastic diaphragms are simply ground up and disposed of through the exhaust port.

Fits all shift mopeds with Piaggio / Derbi engine D50B0, EBE, EBS_{AI-translation}