The G45 walking tractor has been developed to work on particularly hard soil, densely packed earth and older lawns. The tines turn in the opposite direction to the driving wheels, making the machine cling to the ground and till the soil more aggressively. Another benefit of counter-rotating tines is increased stability. In other tillers the tines drive faster than the wheels to penetrate the earth, but if a root or object is struck the tines jerk the machine forward without warning. Counter rotation minimises this effect as the wheels drive forward keeping the machine stable as the tines turn in the opposite direction.