If you ordered a Bob Jackson frame from Bikecology in 1981, a Dura Ace group
would certainly have been an option. Bob Jackson frames and Dura Ace groups
are featured on the very first pages of the Bikecology catalog at that time.
See http://bulgier.net/
Jerry Moos wrote: If it is mid-80's, Dura Ace could easily be original. Dura Ace was into at least their 3rd generation by then, and it wasn't that unusual to see British frames with Japanese components. Plus, as I recall, most Bob Jacksons sold in the US were sold as framesets, so the buyers could have them built up as they liked, and by the mid-80's a lot of guys were going with DA....
bruce thomson wrote: ...The Dura-Ace is a give-away that it has been 'upgraded' by throwing away the original equipment and putting on the latest equipment of the time. Do a bit of research on the bike by going to the CR website and look at the scans of old brochures on Bulgier.net and see if it is close to original. ....
Mark Birnbaum wrote: I'm shopping for a bike for a friend who wants to get into distance riding, centuries, etc... Not a show piece, just a good, solid, reliable bike. At any rate, I saw a Bob Jackson at the local non-profit bike store. Early to mid 80's frame, downtube shifters, full dura ace, Cinelli bars & stem, Laprade seat post. They're asking $750. Frame has few scratches, but looks good otherwise. Is this a fair price?