Applicable Models: 3 bolt Starter Motor fit most Chinese 50cc 70cc 90cc 110cc 125cc Dirt Bikes, Go Karts and ATVs. Please check pictures and specifications for compatibility. Motor Dimension: Bolt Hole A Spacing: 2.85″; Bolt Hole B Spacing: 3.16″; Teeth Dia: 1″. Motor Specifications: 12 Teeth; Clockwise; 3 Bolt. Main Function: The motor converts the electrical energy of the battery into mechanical energy, and then drags the engine to start through the transmission mechanism. Good performance guarantees the normal start of the motorcycle. High Performance: Flexible rotation; Normal current during work; Low vibration during work; Insulation resistance between windings and between windings and housing is greater than 0.5 megohm. After-Sales: Your satisfaction is always our biggest goal. No matter what the problem is, please feel free to contact us, we will try our best to provide you with a satisfactory solution. Applicable Models Starter Motor for 50cc 70 cc 90cc 100 cc 110cc 125 cc Di