Headset dust cap

furrag
furrag Posts: 481
edited July 2012 in Workshop
Headsets remain the one alien thing to me on a bike.

I have this Cane Creek headset on my bike. I'd like a lower dust cap (that sits below the stem on top of the bearings/headtube as the current one is 18mm.

Can anyone tell me what specifications I'm looking for when shopping for a compatible more shallow cap in classifieds? Is it as simple as any ISx headset that fits 1 1/8 integrated top/bottom?