Original sentence: If the radius was bigger than desired, the steering brakes could be used to tighten the turn.Steering was accomplished through a seven-speed AK 7-200 synchromesh gearbox, designed by ZF, and a MAN single radius steering system, operated by steering levers.The higher the gear, the bigger was the turning radius.The steering system allowed a single, fixed radius of turn at each gear
Edited sentence: Each gear had a fixed radius of turning, ranging from five meters for 1st gear up to 80 meters for 7th gear.Steering was accomplished through a seven-speed AK 7-200 synchromesh gearbox, designed by Zahnradfabrik Friedrichshafen, and a MAN single radius steering system, operated by steering levers.The driver could also engage the brakes on one side to force a sharper turn.The driver was expected to judge the sharpness of a turn ahead of time and shift into the appropriate geat to  turn the tank