In drag racing, a transbrake is a mechanism that selectively places the transmission in a forward and reverse gear simultaneously. This allows the engine to create full power without transmitting that power through the driveline, allowing the car to stay in one place. Transbrakes are becoming popular in street driven enthusiast vehicles due to the sound and have been popularized by the increasing use in street racing. The use of a transbrake can cause premature failure of transmission gears due to the pressure applied. Transbrakes are often used as a part of a "launch control" system.