Thanks all for the input.

Regarding components, Suntour derailleur and sugino cranks. However, if you pedal backwards (freewheel) the chain hops off of the chain tension pulley. I've oiled, cleaned etc, can't clear this up. Led me to wonder about a modern component instead of the oldie.

Overall, when I ride her bike vs. mine, it seems like I'm working way to hard for the speed I'm getting. I've got a Miyata 110 with upgraded drive train - is the difference all in my expensive wheel? Could the bottom bracket be bogging down? Is there enough resistance in a drlr to slow down the whole drive train?

A vague question like, "It feels like it drags" elicited blank stares from the local bike shop. Either I'm stupid, they're arrogant, or both.

Any help?

PS: Yes Yes, pix on home box, im now at work, will post.