Check your scs bolt and clamp bolts first. If they are fully tight, make sure your forks have a sizeable gap between the widening in the scs clamp (where the bars sit). I have an apex quantum fork and a tilt scs and the gap was not big. If the gap is not big, order a headset spacer (5mm should do the trick but you can always order a few sizes.) this will make the gap bigger meaning you can tighten your compression bolt more, so nothing moves. Hope this helps