What Is the "Maximum Refresh Rate" for Crt Monitors?

I am planning to buy a CRT (low price, high refresh rate, no ghosting, no input lag). On some specs page they list different values for maximum refresh rates and preset signal timing.

For example on the specs page of Sony E430 I can read:

Preset signal timing

VGA      640 x 480/60 Hz
EVGA     640 x 480/75 Hz
VESA     640 x 480/85 Hz
VGA-Text 720 x 400/70 Hz
VESA     720 x 400/85 Hz
SVGA     800 x 600/60 Hz
ESVGA    800 x 600/75 Hz
VESA     800 x 600/85 Hz
Mac 16"  832 x 624/75 Hz
VESA     1024 x 768/60 Hz
VESA     1024 x 768/70 Hz
EUVGA    1024 x 768/75 Hz
Mac 19"  1024 x 768/75 Hz
VESA     1024 x 768/85 Hz
VESA     1152 x 864/75 Hz
VESA     1152 x 864/85 Hz
Mac 2    1152 x 870/75 Hz
VESA     1280 x 960/60 Hz
VESA     1280 x 960/85 Hz
VESA     1280 x 1024/60 Hz
VESA     1280 x 1024/75 Hz
VESA     1280 x 1024/85 Hz
VESA     1600 x 1200/60 Hz
VESA     1600 x 1200/65 Hz
VESA     1600 x 1200/70 Hz
VESA     1600 x 1200/75 Hz

Maximum refresh rates:

800 x 600/155 Hz
1024 x 768/121 Hz
1280 x 1024/91 Hz
1600 x 1200/78 Hz

Is this "maximal refresh rate" a theoretical maximal limit which I cannot set? Or is it possible to get 120Hz at 1024x768?