"Super Servos™ for 1/8 and 1/10 scale cars and trucks. The entire JR Racing servo line is equipped with universal connectors that make them compatible with JR, Futaba, Hitec, KO Propo, and Airtronics "Z" connectors. These servos feature the same renowned JR quality hobbyists have come to expect. The Z3550 Mini Race Servo features a fast .11 sec/60 degrees transit time and 38 oz./in. torque, making it perfect for 1/12 scale racers who are looking for a fast, ball bearing, lightweight mini steering servo. A 4" servo lead offers convenient installation. Torque: 38 oz/in at 6V Speed: .11 sec/60 at 6V Dimensions: 0.58 x 1.30 x 1.02in Weight: 1.61 oz Bearing: Yes Motor Type: Coreless Gears: Nylon