The new KUHN GA 4230 T and GA 4231 T single-rotor rotary rakes build on the popularity of the prior generation of KUHN’s single-rotor rakes with the incorporation of the Masterdrive® GIII double-reduction gearbox. The main gearbox features the KUHN exclusive double reduction drive that not only provides the ergonomic benefits of right hand swath delivery, but also improves the power flow through the gearbox. These new models have a lighter, but stronger construction with aluminum rake arm housings, large cam bearings and a cam track designed to reduce peak loads. They maintain the KUHN double bend tine arms that offer clean raking and excellent capacity for consistent, fluffy windrows. The GA 4230 T has fixed tine arms, for operations where transport is a concern, the GA 4231 T has easily removable tine arms that can be stored on the hitch to achieve a transport width of 6'5" (1.95 m).