Originally Posted by
Big1hasspoke
yes, mine is the same style as yours. Yours probably came with XTR, IIRC. I think 70 was the top, 30 was the bottom, but they were all nice stuff back then. My cables are stock as they came, pulley and all. May be a crazy response, but I don't believe they used Deore on anything but MTBs.... I did find a link that confirmed they are Rapid Fire thumb shifters, 7 spd cassette.
mine is likethe red one. Maybe a 92 model.....
You should probably take the bike to a shop to be sure what is wrong with the derailer.
The good news if you have to replace it is that we have top pull derailers now that mean you can get rid of the goofy pulley system. The derailers of that age didn't come in top and bottom pull so they had to route the cable around the pulley. With the new ones, you don't have to do that anymore. It can pull from the upper cable stop.