KUHN SR 600 GII Series SpeedRake® wheel rakes are high-capacity, bi-fold rakes designed to meet the needs of today’s progressive hay producers. The innovative design provides unparalleled maneuverability on the road and in the field. These rakes can turn on a dime! The SR 600 GII Series rakes provide clean raking while preserving crop stubble, as well as optimized windrow formation, for a total package that offers the ultimate combination of productivity and quality performance.