Pinasco Spring Slider; Standard Minarelli Stators Also fits 139QMB-based 50cc /

Also fits 139QMB-based 50cc / 80cc engines with the following engine codes: 139QMA

Intake Valve Diameter: 18

Precision-engineered as a high-performance upgrade over restrictive

allowing for endless experimentation without purchasing multiple individual sets

Part Number: FCP1

Pinasco Spring Slider; Standard Minarelli Stators Also fits 139QMB-based 50cc /Pinasco patented Spring Slider for variators. It is made up of an ultraflat axial bearing combined with a particular return spring: isolation of the return spring from the torsion of the driven pulleys lengthens the working life of the spring, thus notably improving performance and reliability. Fits Minarelli engined scooters.