Cannodale stem size

[nosherduke996]

Hi, I have a carbon 6 road bike and would like to reducuce the handlebar stem length.Can anyone advise me the best place for a new stem as they seem to be a odd size. i.e 1.5 inches instead of 1nch and eigth.

 

[kyuss]

I thought they had tapered headtubes ie it's a 1.5 inch headset at the crown but still uses a 1 1/8th headset cup and steerer at the top. You could play it safe and get a Controltech Estro which comes as standard on some models but I'm pretty sure any 1 1/8th stem would work.