My daughther's bike is a 21 speed mountain bike I purchased from wal-mart a few years ago. The rear derailleur was mangled by a neighbor taking out his frustrations. Anyway, I now need to replace it and no longer have the one that was removed. Here's what information I have
Shifters are on the handle bars and are the ones that click (indexing?) and the word Falcon appears on them.
Rear sprokets have following number or teeth
I called the local bike shop and they quoted $50 minimum for any derailleur they carry + labor and I only paid $80 for the bike. If it's going to run me that much, I'd just as soon replace the bike. Any advice on a supplier is helpful also.