CannedGoods

I've never worked on FDs before, and the Shimano FE on my newly acquired 1980 Schwinn Traveler is locked up (and I don't think it will come loose). So, I'm wondering if I can (is it possible? advisable) to use the Shimano 60 from a 1978 Super Le Tour (pic available here: https://tinyurl.com/5r8q6o)?

I'm figuring in two year's time between these bikes and components, there's a a degree of interchangeability, but I want to be sure.

Thanks.

Al1943

If you release the cable from the old derailleur is it still locked up?
Does the potential replacement derailleur have the correct clamp size for your frame? If so, I would think that it would work but someone with more experience with Schwinn bikes of this vintage should answer your question. Schwinn had a habit of using proprietary components that were often not compatible with other brands.
I suggest that you try to present this question to Vintage bike and Schwinn bike forums.

Al

CannedGoods

I did release the cable, and it was still frozen (I soaked it in WD40, too). I don't know anything about clamp sizes -- I'm guessing it has something to do with securing the FD to the frame? Both FDs are Shimanos, so I'm hoping that will be a good sign. And I'll definitely post this in the vintage section . . . wasn't sure if repair topics had to be posted here.

Thanks, Al.

Al1943

The EC 200 derailleur shown at the link is said to have a 28.6 mm clamp size. That is the diameter of the frame seat tube that it is meant to fit. If you can't measure the seat tube diameter with a caliper then you should be able to measure the circumference with a fine string or thread. Wrap the string tightly around the tube near the mounting point of the seat tube. Put a fine vertical mark across both sides of the string. The circumference will be the distance between marks. Diameter is equal to the circumference divided by pi.

Al