Well, really, being such simplistic devices - - what else can you ask a person about their bike?
"How much horsepower does it have?" One look at my scrawny chicken-legs can probably help you draw some conclusions.
"How fast can it go?" Once again, dictated by the oaf mashing on the pedals.
"What engine/cam/carb/rear end gears/__________
(fill in the blank) does it have in it?" Since every component is kinda hanging right out there for you to see, there are not many hidden speed secrets. When it comes to bikes, can you make a sleeper?
So that leaves the only non-self-evident factoid for a conversation-maker. "How Much Does It Weigh?"
Although I do share your exasperation with weight-obsession - - belied by the fact that I finally bought a Harbor Freight gram scale this year