In design, its a walking 4 bar, faux bar, 4 bar, whatever you want to call it. With the beefiness is reminds me more of a banshee than the ac, but all the same anyways. However, the pivots are about the largest I have seen on any bike below pure dh race bikes. This thing is a beast. I can't wait to own one. I love the adjustable rear dropouts to adjust for bb height.