There is a limit on how much reach is desirable, which will vary with the body proportions and ability of the cyclist. Some elbow bend is always desirable, and the average tourist isn't as thin or muscular as a racing cyclist, so less hip bend is called for. Many long distance cyclists find that for every centimeter the bars are raised, they should be moved forward two centimeters. To see why this might be, bend forward at the waist, putting one's torso at about a 45° angle to the horizontal, the normal long distance position. Put a slight bend in your elbows. Now rotate your arms, pivoting of course at your shoulders. Observe the arc through which your hands move. Lower down, they move mostly forward. If one's bars were at the height of one's shoulders, movement would be entirely upward. At normal bar height, this approximate 2:1 ratio is observed.