HPI Racing VORZA HP SF-50 STEERING SERVO (Flux METAL GEAR High Torque Savage XL Flux 101850 Genuine HPI Replacement Parts Specs: 6.0V 0.18sec/60 12kg/cm / Torque 12kg/cm (266.6oz/in) 6.0V Futaba J Connector Metal Output Gear 53.6mm (including tabs) x 19.8mm x 30.3mm tall (mounting hardware sold separately in our screw kit)