That information on the tires is great.
I am just wondering though, (since I really do not know) wouldn't a larger tire be easier to roll? It's just that these tires on the Diamondback look so small especially next to a 10 speed-- and the Hybrids seem to have the 700 (something) tires. It makes sense that they would be easier-- but I can always be wrong. It might be the size of the cranks as well. I just really want this to be an easy bike for my wife to peddle. I am hoping that the Diamondback is a fairly good quality bike.
I am also wondering if investing 100.00 in the olsd Sprint is smart-- I guess I will need a better seat as well- the original is very hard.