Yeah I remembered that one had Shimano 600 on it. I just thought it was cool that back in the day you could have ordered it with either one. I'm sorry you missed it. I hope it went to someone who will take good care of it and know what they've got. Watch for the posts on here, they may look for info on the bike also. Keep looking good deals are out there...I am considering selling mine. I need to make room for a newer bike. It's a 62 or 63cm depending where you measure from.