Specialized headset offset cone spacer
When I picked up the bike new I asked them to put the bars as high as possible, but as I've been riding more I want lower it a little. I was there when the guy at the LBS did it and he showed me that there were four different possible positions. Two depending on whether the stem is flipped or not. But there was also a spacer underneath that he flipped to gain a little bit more. Could someone kindly explain what this is and how it works? By flipping this spacer, you're only changing the height and not the angle of the stem right?
This what the specs say for the headset, so I'm assuming the spacer in question is the 8mm cone spacer?
1-1/8 upper, 1-1/4" lower, Campy style, crown race, 8mm carbon cone spacer, w/ 20mm of carbon spacers