I am the biggest bow, but not even the strongest man can lift me. Looking at me can make your heart quiver, but I have no arrows. What am I?
Well, it's not the desired answer, but:
I live near the Bow river, which is 587 km in length. There's some debate about the "size" of a rainbow, since it's a visual phenomenon and it's size depends on point of observation. Anyhoo, the Bow river is quite scenic (hearts aquiver) and has no arrows.
Are you an:
Not even the strongest man can lift me.
Not even a strong man can lift his own elbow.
Looking at me can make your heart quiver
You can get tennis elbow - nudge, nudge, wink, wink.
But I have no arrows
Elbows are used to fire arrows, and are not arrows themselves.