A lawn mower (10) may include a blade housing (16) configured to house at least one blade, a motor (18) configured to selectively rotate the at least one blade within the blade housing (16), a mobility assembly including front wheels (20) and rear wheels (22), and a cutting height adjustment assembly (40) configured to convert linear movement of a linking member (120) that is operably coupled between at least one of the front wheels (20) and at least one of the rear wheels (22) into a height adjustment of the blade housing (16). The cutting height adjustment assembly includes a locking assembly (150) including a locking member (160) that engages a guide (164) that is operably coupled to the blade housing (16) at five or more contact points to hold the cutting height adjustment assembly (40) at a selected height of the blade housing (16).