The bike: 2017 Scott Gambler with Fox 40. DT 350 front hub. If I lift up on the bars and drop the front tire down, I get a slight "crack" noise. I've tried doing this while holding the front brake hose, taking the chain off, etc to reduce the number of variables. The headset bearings aren't perfect so I've ordered new ones but they don't seem bad enough to cause that sound. Reassembled and carefully greased the headset a few times. Fork was just rebuilt (full service) over the offseason and I'm running the air spring. It's fairly annoying while riding.
Things that I haven't ruled out: headset cups moving in frame, fork steerer/crown interface, lower crown race?. One thing that seems odd to me is that the upper crown has always been a really tight fit to where I need to use a deadblow mallet to remove and install. Previous Fox 40 did not have such a tight fit on the upper crown. I also put a headset press on the cups just to ensure that they were fully seated and they didn't move.
I've ridden for a couple of seasons and I've always been chasing creaks. I did buy it used so no real telling what kind of abuse it saw.
Any other troubleshooting? Anything jump out?
Things that I haven't ruled out: headset cups moving in frame, fork steerer/crown interface, lower crown race?. One thing that seems odd to me is that the upper crown has always been a really tight fit to where I need to use a deadblow mallet to remove and install. Previous Fox 40 did not have such a tight fit on the upper crown. I also put a headset press on the cups just to ensure that they were fully seated and they didn't move.
I've ridden for a couple of seasons and I've always been chasing creaks. I did buy it used so no real telling what kind of abuse it saw.
Any other troubleshooting? Anything jump out?