A320 wrote, "Not true. V1 is the maximum speed at which it is safe to reject the takeoff. VR is the speed at which you take off"
Vr is a speed at which the rotation is commenced not the lift off speed. If one was to grab all the elevator available at Vr we would see a lot of sparks as it rolls down the runway. Now in a fairly straight wing aircraft not a problem, but with increase wing sweep and weight, save the tail skid and rotate reasonably and have V2 at left off.
I've seen it happen just to many times....