A spreader assembly (300) for a combine harvester (200) is disclosed, the assembly including a pair of disks (302, 304) configured to be rotated such that chaff material dropped onto the disks (302, 304) is spread about the combine harvester (200), wherein each disk (302, 304) is operably connected to its own motor (308, 312) and a spreader frame assembly (316). The spreader frame assembly (316) includes a first side support pivotably connected to a frame of the combine harvester (200), a second side support pivotably connected to the frame of the combine harvester (200), and at least one disk support configured to support at least one of the pair of disks (302, 304). The spreader frame assembly (316) further defines an opening (324) configured such that when the combine harvester (200) is windrowing material, no portion of the spreader frame assembly (316) interferes with the flow of windrowing material.
