A switch guide located between a pair of switches on a computerized bicycle control panel is disclosed for guiding a bicycle rider's thumb to a proper switch on a bicycle handle bar. The switch guide is preferably a protrusion dimensioned to be detected by the bicycle rider's thumb. In a preferred embodiment of the invention, the height of the switch guide is greater than the height of the switch. In an alternative embodiment, the height of the switch guide is greater than the height of the switch, when the switch is activated. The switch guide is located in sufficient proximity to the switches to allow the rider's thumb to access one of the switches by moving the thumb to one side of the switch guide and the other switch by moving the thumb to the other side of the switch guide.