Dual clutch transmission with an input shaft ; two couplings (3.1, 3.2) for the rotationally fixed connection of the input shaft with one partial transmission input shaft each; two countershafts , each with an output gear arranged coaxially thereto; first, second, and third forward gear idlers , each arranged coaxially to one of the countershafts ; fourth and fifth forward gear idlers , each arranged coaxially to the other of the countershafts ; wherein a first output gear of the output gears is designed as a larger output gear which has a larger diameter and/or a greater number of teeth than a smaller second output gear of the output gears , the first forward gear idler is used to form a second gear stage, the second forward gear idler is used to form a third gear stage, the third forward gear idler is used to form a fourth gear stage, the fourth forward gear idler is used to form a fifth gear stage, and the fifth forward gear idler is used to form a sixth gear stage, wherein the gear stages in the order mentioned have a decreasing ratio, wherein the larger first output gear is designed as an idler which can be connected in a rotationally fixed manner to the associated countershaft via a switching element , wherein the smaller second output gear is designed as a fixed gear which is rotationally fixedly connected to its countershaft , wherein the second gear stage, the third gear stage, and the fourth gear stage each take place with an output via the smaller second output gear , and the fifth gear stage and the sixth gear stage each take place with an output via the larger first output gear , wherein a reverse gear idler is arranged on the countershaft with the larger output gear and rotatably on a hub of the larger output gear , characterized in that the reverse gear idler meshes only with the first forward gear idler . an input shaft ; two couplings (3.1, 3.2) for the rotationally fixed connection of the input shaft with one partial transmission input shaft each; two countershafts , each with an output gear arranged coaxially thereto; first, second, and third forward gear idlers , each arranged coaxially to one of the countershafts ; fourth and fifth forward gear idlers , each arranged coaxially to the other of the countershafts ; wherein a first output gear of the output gears is designed as a larger output gear which has a larger diameter and/or a greater number of teeth than a smaller second output gear of the output gears , the first forward gear idler is used to form a second gear stage, the second forward gear idler is used to form a third gear stage, the third forward gear idler is used to form a fourth gear stage, the fourth forward gear idler is used to form a fifth gear stage, and the fifth forward gear idler is used to form a sixth gear stage, wherein the gear stages in the order mentioned have a decreasing ratio, wherein the larger first output gear is designed as an idler which can be connected in a rotationally fixed manner to the associated countershaft via a switching element , wherein the smaller second output gear is designed as a fixed gear which is rotationally fixedly connected to its countershaft , wherein the second gear stage, the third gear stage, and the fourth gear stage each take place with an output via the smaller second output gear , and the fifth gear stage and the sixth gear stage each take place with an output via the larger first output gear , wherein a reverse gear idler is arranged on the countershaft with the larger output gear and rotatably on a hub of the larger output gear , characterized in that the reverse gear idler meshes only with the first forward gear idler . <EOS>