BGM PRO Evolution Diaphragm + Polini Plates – Piaggio 50–180cc
Color: Black
Contents:
– 1x BGM PRO Membrane Block
– 2x Inlet Stuffers
Description
High-performance reed valve assembly from BGM PRO, equipped with Polini reed valves for optimal throttle response and power.
The lightweight aluminum diaphragm block is coated with rubber to ensure a perfect seal and reduce wear. The diaphragm plates ensure stable operation and a quieter intake sound.
Suitable for both street and performance setups on Piaggio 50–180cc engines.










