19 spline Type 4 final drive shaft for 125cc GY6 QMI152/157 and 150cc GY6 QMJ152/157 engines This Type 4 final drive shaft is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152/157 and 150cc GY6 QMJ152/157 enginesDescription 19 spline Type 4 final drive shaft for 125cc GY6 QMI152/157 and 150cc GY6 QMJ152/157 engines. This Type 4 final drive shaft is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152/157 and 150cc GY6 QMJ152/157 engines.Please check the dimensions on the Specs tab to see if this is the correct Type 4 final drive shaft for your Chinese built 125cc GY6 QMI152/157 and 150cc GY6 QMJ152/157 engine. WARNING California Residents: Proposition 65 Warning Specifications Overall Length: 197.5 mmNumber of Splines: 19Thread Size: M16x1.50,Compatibility Jonway YY125QT-21 Jonway YY125T Jonway YY125T-2 Jonway YY125T-2A Jonway Y