Clutch NUT M28 for GY6 50CC 125CC 150CC JOG 50 90 CF250 Scooter ATV QUAD This clutch nut is designed to fit GY6 engine models with 50CC, 125CC, and 150CC displacements.It is compatible with including JOG 50 and JOG 90, as well as CF250 models.The component is also suitable for use on ATVs and that require an M28 thread size.Constructed for secure attachment to the clutch assembly, it helps maintain proper drivetrain function.This nut is engineered for straightforward installation and performance in scooter and small vehicle applications.