Polini Carbon membrane plate, Minarelli standing

Polini diaphragm plate for the original reed valve, for scooters with Minarelli upright engines. Diaphragm plates improve the vehicle's characteristics and performance and are a crucial element of tuning and adjustment – their optimal selection will allow you to fully utilize the power. Recommended for any tuning. The thickness of the diaphragm plates and their associated stiffness are usually selected experimentally. This affects the operating characteristics of the 2-stroke engine. Using thinner, more flexible plates improves performance and increases power in the lower rpm range, while thicker, stiffer plates increase power in the upper rpm range. Dimensions: 42x38mm Thickness: 0.35mm Unsure if the plates fit your scooter? Before purchasing, compare your existing plates with the photo.