Thanks guys . It was one of those "try it and see" kind of creations. It ran well but needs a softer suspension, possibly cut foams also. It runs kind of stiff and bouncey, which didn't help it's climbing ability but all in all a fun trail machine. The Swamp Dawg tires did ok on the rocks, considering they weren't intended for that purpose. I built it to trail run mostly, and to go muddin' with.