Racing Clutch Bell and Clutch Shoe assembly designed for compatibility with Jog 50, Jog 90 3WF, 90, Vino 90, BWS100, and Minarelli 2T 1E40QMB 1E41QMB scooter engines.Clutch Bell Outer Diameter: 123mm Clutch Bell Inner Diameter: 112mm Clutch Bell Center Hole Diameter: 12mm Clutch Bell Center Hole Spline: 16T Includes 2000RPM clutch springs Clutch Shoe Overall Outer Diameter: 110mm Clutch Shoe Inner Hole Size: 24x28mm Clutch Shoe Overall Thickness: Approximately 26mm Fits JOG 90, 90 (3WF 3VR), 2T 50 (1E40QMB), BWS-100, -100 (4VP), RS100, MIO100.May also fit other scooter engines with matching specifications.For models with a 113mm outer diameter clutch bell, replacement of both clutch shoe and clutch bell is recommended.may vary based on engine configuration and other factors.Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.