[dtengineering]

We make it up the ramp with no problems using IFI's 6"x1.5" traction wheels with roughtop in a 6x6 configuration lengthwise on the kitbot chassis. Your wheels and configuration sounds similar, so I expect you'll do fine. Depends, of course, on what the rest of your robot's ground clearance and centre of gravity are... our CoG is going to rise as we add the turret this week, then drop when we add the bumpers next week.

As for turning we found some "bouncyness" on carpet, but that disappeared as we added weight. It turns quite nicely, certainly better than the 4x4 arrangements we have used in the past.

Cool wheels... isn't CNC a wonderful thing?

Jason