Dedenbear's CO2 Crossover Delay Box allows racers to leave off either side of the tree. No longer must you sit at the starting line trying to concentrate on your tree while a slower opponent speeds away! The quicker racer enters both dial-ins, along with the desired transbrake delay. When you release the transbrake button on your opponent's light, the Dedenbear CO2 calculates the handicap, adds the delay, and releases the transbrake at precisely the right time.