Recently I bought a Cane Creek S1 headset for a new project bike. Because the S* line has been discontinued by Cane Creek, I had to buy from a liquidator. I can't figure out if I received an OEM or retail product. It came in the retail type plastic bag and with retail instructions, but without a box.
I've previously used an aluminum cupped S3 in an aluminum frame bike. The new project is a steel frame for which I wanted the steel cups of the S1. And I wanted the two bikes to match in a way. Hence, the purchase of the S1.
Anyway, the S1 I received did not come with a shim seal. This is a flat disc that sits above the split washer, but under the top cap. The exploded view in the instructions shows the shim seal.
Does the S1 not come with a shim seal despite the diagram? Was the shim seal left out of just the unit I received? Is this some sort of quasi OEM stock that was assembled into retail form without the seal?
I'll probably buy an S3 from which to scavenge the seal. I'll keep the rest as spare parts.
(I seem to always have bad luck with headsets. I have to buy two to get one that works for me.)