GY6 Clutch: Fit for GY6 125CC/150CC 157QMJ/152QMI 4-Stroke Engine.19 splines inside the clutch drum/bell Specification: Inner Diameter (bell): 125mm / Outer Diameter (bell): 137mm / Number of Splines: 19 / Splines Inner Diameter (peak to peak): 13.6mm / Outer Diameter (pulley): 142mm (5.6 inches) High quality and professional clutch: Made of Quality Iron Material, Which is Lightweight, Portable, Sturdy, Durable, Maximum Torque, Wear-resisting and Fast Heat Disation Scooter Model Compatibility: Eaglecraft Znen Tank Retro Agility Taotao Lance Vintage BMS Baja Jonway Vento Shenke Carbide Quantum Zircon Helix Manco American Sportworks Tomerlin Crossfire Dazon Raider Carter Talon Commonly use: Suitable for scooter, ATV, go kart etc. Check Pictures and Measurements To Be SureThis is The Correct Clutch for Your Application. Product Description Description: 100% Brand new, Never been used. Suitable for scooter, ATV, go kart etc. Rear clutch for GY6 125CC/150CC 157QMJ/152QMI 4-Stroke Engine