Two methods of height-of-cut adjustment for lawn-care apparatus are typical. An E-gate system allows each wheel of the lawnmower to be moved independently and set to a pre-determined height via sprung axles in an E-gate aperture (200) in the chassis (110). Alternatively, a single point operation provides cranked axles (300) linked together via a sprung link arm (450) coupled with a detent arrangement moving and locking all four lawnmower wheels into the predetermined positions, and therefore pre-determined height-of-cut. Each of these two systems requires a different chassis, which increases manufacturing costs. The present invention provides a lawn-care apparatus with an adaptor (400, 410, 420, 430) for allowing both an E-gate type height-of-cut adjustment and a cranked-axle adjustment to be implemented on the same chassis (110).
