Someone in our local club has 105 derailleurs from 2002 for sale. He says they are in good condition. They were stripped off a Giant OCR1 2002. I dont probably need the front derailleur (this one is the bolt type, not the ring type) because I have a ultegra (FD-6530 Or 6830 dont remember exactly). Here is the bike they were taken off of:
How much should I pay for the rear DR? If he wants to sell them together, how much should I offer for both?
Thanks for your time.