downtube shifter

Would love any advice from more experienced hands! I'm working on restoring my 1985 SR300 (Continental Blue). On a recent test ride, the rear shifter on the downtube came off. The result is I need to reattach the shifter boss, and not quite sure how to do this. The boss was held on by two...

Hi. I’ve got a 1986 SR400 that had Cyclone friction shifters on it. I’m trying to install dura ace indexed downtube shifters. The spacer that sits against the frame doesn’t sit flush because the curve of the Cannondale is bigger than a standard downtube. Does anyone have any suggestions short of...