Creaking front wheel / forks
hi. I have a Marin Fairfax hybrid bike which I got about 5 months ago. I'm really happy with it, but I have noticed that recently it has developed a rather annoying (and worrying) creaking sound when I turn the handlebars about 45 degrees left or right. The creak is definitely coming from the wheel or forks, however it doesn't occur at low speeds.
Is this anything I should be worried about, and can anyone help with a suggestion of how to fix this? Not sure if it is relevant, but the bike has carbon fibre forks and lockable wheel nuts.
Any help would be greatly appreciated.