We probably have 1.5k miles on our new Calfee. We spec'd a Chris King headset when it was built up. Lately, I have noticed that I am getting a definite creaking noise (sounds like two pieces of composite material banging/getting stressed together with no lubrication) in the headset area when descending bumpy roads at speed, or when braking on rough surfaces. I have tightened the steerer tube and torqued the stem to correct Nm's. Yesterday, it was better in the early stages of the ride, but the creaking returned. There is no fore/aft headset movement when the bike is rocked back & forth with the front brake tight. I can't even feel any creaking vibration when I touch the forks and the head tube, and rock the bike. It just doesn't act like a loose headset. Any ideas? I'm beginning to think the headset has failed, but that is so unlike a King headset.
Thanks in advance