Giant overdrive 2 headset help

mikey1982

Hi,

I have a tcr advanced 2 frame and would like to fit an after market fork but need a new headset but Im not sure which one, can anyone help

I believe the headset top is 1 1/4 and bottom is 1.5 and the fork i have is 1 1/8 top to bottom. I have spoken to giant who couldn't help but there must be a way?

Thanks

Mike