Seco All-Terrain Rover Rod “Big Wheel” The Seco 5125-056 “Big Wheel” is designed for RTK profiling applications , providing smooth and consistent movement over uneven terrain. Its large-diameter wheel helps maintain steady rod positioning while collecting continuous elevation data in the field. Key Features • 19" x 1-5/8" all-terrain wheel for smooth rolling over rough surfaces • Ideal for RTK profiling and continuous measurement workflows • Supports consistent rod movement and elevation tracking • Rod not included