Thanks gomango!

The Avocet saddle with SR Laprade seatpost match, the Sugino AT crank with Tioga SureFoot pedals are the same, and those look like BR-MC70 cantilever brake calipers. Can you do a quick check of the your front and rear derailleurs for me? I can already see that your Stumpjumper has the "Deerhead" XT thumb shifters (my favorite and the best thumb shifters ever made) as opposed to the Suntour Power Ratchet thumb shifters.

Given the similarities and minor differences, does this support the theory that Specialized built bikes with whatever parts were on hand?

Are there any other '83 Stumpjumper Sport owners that can add some details to the mix? C'mon, jump in, I'd appreciate it!

Thanks again gomango, I look forward to your reply!

-D-