Product Description Specifications:Torque: 450oz @ 6.0V / 500oz @ 7.4V / 565oz @ 8.4VSpeed: .11sec @ 6.0V / .95sec @ 7.4V / .08sec @ 8.4VWeight: 2.75oz Dimension: 1.57 x 79 x 1.5 (LWH)Spline: 25TDead Band Width: 2usInternal: Steel Gears / All CNC Aluminum Casing / Bearing Type: 2BB