Four caster wheels follow ground contours and prevent scalping. Heavy tubular caster wheel arms are bolted to rail supports for long life.

The GM11 and GM21 Series Medium-Duty Grooming Mowers have a rounded, front-tapered rear deck design that allows for close mowing along trees, fences, buildings, and other obstacles.

The GM11 and GM21 Series Medium-Duty Grooming Mowers come with a 37.3-kW (50-hp) rugged gearbox. Cooling fins help extend the life of the gearbox.

An anti-scalping roller kit can be ordered as an attachment for field conversion for FM and GM Series Grooming Mowers when it is not standard equipment. The roller is attached to the front of the cutting deck to help reduce scalping.

Each kit contains one roller.