I recently purchased a new Easton EC90 SLX carbon fork. 1 1/8". this one:





now I want to get a new headset to go with it, but I'm not sure which one will work, or will not work. Here are the two options I'm looking at:

First is the Chris King threadless 1 1/8




next is the KCNC semi integrated headset:




Then I'm looking at the at the KCNC threadless 1 1/8 headset




I'm putting it on a 2009 CAAD9-6, taking off the original Cannondale fork, so I figured I'd replace the headset too while I'm at it. If either of these obviously will NOT work, someone please tell me!!


thanks,


RD