Tiagra FD clamp size - different size
Yesterday I removed my front derailer to swap it over to my new frame. I then found out that the clamp size was different. Previous bike was 34.9 seat tube, new one is 31.8. I decided to head to the LBS today for a new FD, but after doing some reading, I learn I may not have to.
The Tiagra came off a 2005 Lemond Reno. It sounds like it's just a braze-on derailer mounted to a clamp, so all I really might need is a new clamp. Is this correct?
Sorry, lots of questions in the last few days as I run into complications swapping my parts over!