Cannondale T700 front derailleur size?

Hi,

I have a Cannondale T700 in need of a new triple front derailleur, and I'd like to find one on ebay.
I'm not sure how to measure it.

How do I determine what size I need?

Can a couple of you confirm what size I need from your experience?

Any recomendations on a front derailleur for this bike?

I don't need Dura-Ace quality, 105 quality would be just fine.

Thanks,

David

 

> I have a Cannondale T700 in need of a new triple front derailleur, and I'd like to find one on
> ebay. I'm not sure how to measure it.
>
> How do I determine what size I need?

Seatube diameter

> Can a couple of you confirm what size I need from your experience?

Cannondale : 32mm