BMS-616DMG+HS Super Strong Digital Servo for bugggy (Metal Gear)10.2kg / .12sec / 46.5g Double ball bearing (Si-oil) CE Certified Strong 3 Pole Motor Heavy duty sealed water proof case Alloy heatsink Digital signal design with 100% fitting square PWS Automatic measures central ms ALU 6061 alloyC95 gear material Digital IC (SOP package with 12bits transfer data) MOS-FET driver (spirited driver able to push over 7A power) Weight: 46.5g / 1.66oz Dimensions: 40.5 x 20 x 38.5mm / 1.60" x 0.78" x 1.54" Torque At 6.0V: 10.2kg/cm , 136 oz/in Speed At 6.0V: 0.12 sec / 60° at no load Operating voltage: 4.8 - 6.0V