The finely graduated gearbox of the Unimog permits speeds from a walking pace all the way up to over 100 km / h. In models U 1250 L to U 2150 L the main gearbox has 8 gears. With the addition of the working gears, 16 fully-synchromesh gears become available, both forward and reverse. The double-H gate makes shifting precise and easy. A shift gate display tells the driver which gear is engaged, making operation even more convenient.