Variator Clutch Assembly - GY6 50cc Scooter 138738 Spline length: 24mm (

Spline length: 24mm (

Check the pictures and measurements to best match your machine

Universal left/right

Mounting measurement: [plate] center-to-center 104mm (4

Mounting hole measurement: 40mm (1

Variator Clutch Assembly - GY6 50cc Scooter 138738 Spline length: 24mm (Front Drive Variator Clutch Assembly GY6 50cc [QMB139] CVT Auto Complete variator assembly for the CVT fully automatic 50cc engines on several makes and models of scooters, mopeds, go karts, and some atvs. Variator details: Drive face is plastic with a notch tab metal gear for the spline shaft Drive face center hole: 26 teeth (spline shaft) Drive face hole diameter: 14mm (0. 55 in) Drive face diameter: 9. 06cm (3. 57 in) Variator face diameter: 8.