Spektrum S6020 Digital Surface Servo 10.5kg Torque SPMSS6020Spektrum S6020 Digital Surface Servo 10. 5kg Torque SPMSS6020 The heavy duty, metal gear S6020 servo puts out an impressive 146 oz in of torque making it ideal for 1 10 scale trucks and cars. And it delivers this torque with silky smooth precision thanks to its dual ball bearing output shaft. Features 146 oz in torque at 6V affords impressive performance in the toughest applications Precise digital control Dual ball bearings provide less resistance