Abstract: A transmission (1) having at least one transmission input shaft (4), at least one countershaft (5), one reverse gear shaft (30) and at last one transmission output shaft (6) in which, upon at least one transmission input shaft (4) and at least one countershaft, idler gears designed as helical-cut spur gears (5) are supported and fixed gears are fastened which forming gear pairs are in tooth contact with each other, and having shifting sets (32, 33, 34, 35) situated on the transmission input shaft (4) and the countershaft (5), the same as comprising synchronization and coupling devices with which the idler gears can be decelerated to implement a ratio change operation and can be non-rotatably connected with the respectively coordinated transmission shaft (4, 5), the same as with at least one driven gear wheel (23) on at least one countershaft (5) which meshes with the teeth of one fixed gear (38) on at least one transmission output shaft (6).