Product descriptionBrand Name:WSJ Use:Kids Powerd Ride on Car SUV Model Number:RS550 For Vehicle Type:SUV,Big Car,DIY refited Vehicle Supplies:Battery Power:45W Material:Plastic The new upgrade! children electric car gearbox 550 Mid-range upgrade to 4 teeth, stronger and more ...Product descriptionBrand Name:WSJ Use:Kids Powerd Ride on Car SUV Model Number:RS550 For Vehicle Type:SUV,Big Car,DIY refited Vehicle Supplies:Battery Power:45W Material:Plastic The new upgrade! children electric car gearbox 550 Mid-range upgrade to 4 teeth, stronger and more durable !!! Note: The speed faster and the torque smaller,In turn,The speed slower and the torque greater If the motor speed more than 10000rpm, must to bedual drive This gearbox left and right there is no difference, change the positive and negative can change the direction of the gearbox 550 the power and torque greater than 390 Voltage: 12V