Spacing is 4x7 instead of our normal 3.5x7. 24" Wide aeratoring; 35.5" total width. 420 lbs Productivity....have not done the math yet, but its pretty quick. The ride-on is still my favorite with this one coming in 2nd. Still launching Sept 1st....with a limited qty available. Half will be held back for EXPO and distributors to demo over the winter months. We will have it at the Ohio Turf Grass field day on Thursday in Columbus, OH if anyone wants to give it a spin.