Thanks for all the tips...i've sorted it! Happened to have the instruction manual which came with my cinelli stem. It stated that you need 3 - 4 mm space between the top of the steerer and the top of the stem. Checked mine it was about 1 - 2 mm. So i added an extra spacer so its now 6mm (only had a 5mm spacer to hand) and the noise has dissapeared!
Thanks for all the tips...i've sorted it! Happened to have the instruction manual which came with my cinelli stem. It stated that you need 3 - 4 mm space between the top of the steerer and the top of the stem. Checked mine it was about 1 - 2 mm. So i added an extra spacer so its now 6mm (only had a 5mm spacer to hand) and the noise has dissapeared!