Specs: Speed: 0.12 - 0.11sec/60deg @ 4.8v Stall Torque: 2.0 - 2.2kg.cm @ 4.8v Standing Torque: 2.2kg.cm/5deg hold out Spline count: 21 Weight: 12.5g Size: 22.5x11.5x24.6mm Motor: Coreless