Add an extra dimension to your driving experience with this Rear Brake Module Set. When used in conjunction with a three-channel radio system this set adds a mechanical brake to the rear transmission. This enables the vehicle to perform handbrake turns and initiate drifting action.Features: Adds a mechanical brake to the rear wheels of your vehicle, allowing you to perform handbrake turns and initiate drifting Supplied assembled for quick and simple installation to your vehicle Manufactured from strong steel and tough composite materials Spektrum S650 Servo included and pre-installed 23, 24 and 25T servo horns supplied for use with a range of servos Supplied with mounting screws, 150mm servo lead extension wire and installation instructions Includes:1 x Assembled Rear Brake Module 1 x Spektrum S650 Servo (Installed) 1 x 23T Servo Horn (Installed) 1 x 24T Servo Horn 1 x 25T Servo Horn 1 x 150mm Servo Lead Extension Wire Mounting Screws Assembly InstructionsRequires:3-Channel radio system such as the Spektrum SLT3 Transmitter and SR315 Dual-Protocol Receiver