Here's a couple of pics of my 96 Cannondale, Silk Road, SR500. I've made a few changes since these pics were taken, but I still enjoy the gentle ride the head shock provides. It is currently my main road rider. It is true the travel of the shock is not very far, but I'm not jumping logs or berms with this bike. It's great for smoothing out those 1" bumps where sections of the road pavement has lifted. I strongly recommend one of these for anyone who has had neck surgery/fusion (like I've had).
Sadly, I don't think Cannondale still makes this bike frame.