I'm getting a intermittent noise from the front wheel... somewhere, no idea exactly. It's a creak then click, almost as if it's a load bearing noise... but it isn't! It's not regular nor on every revolution but it is getting worse, i.e. more frequent and louder. There are no loose spokes and nothing obviously (visually) wrong with the rim. The wheel spins freely with no noise if spun by hand. The noise is definitely from the wheel. I swapped wheels with another bike to ensure. The wheel has a shimano dynamo hub. I've greased the bearings (on the one side that you can) and that seems to have made it better though there is still some noise. That worries me as it points to a problem with the hub! If the rain holds off, I'll go out for a couple of hours for some further diagnosis but I suspect it's still there. Anybody got any ideas?