Full suspension....and i have to say it's quite amazing. I haven't really mowed with it yet, but I have taken it for a "spin" over the roughest patches and across a couple of troughs I have in the yard. Where the craftsman used to send me to the chiropractor at 2 mph, when the back tires dropped in, the shock from the solid axle would travel straight up my spine. With this however, it bounces (me, not the machine) and then smooths out again, all while traveling 3-4x faster, so I guess I have 2 options.....either slow down a little bit there or quit being bone lazy and fill in those spots
Gotta say, so far I love this machine.