Honda Goldwing GL1800 Owner's Manual page 76

Braking
When riding in wet or rainy conditions, or on loose surfaces, the ability to
maneuver and stop will be reduced. All of your actions should be smooth under
these conditions. Rapid acceleration, braking or turning may cause loss of
control. For your safety, exercise extreme caution when braking, accelerating or
turning.
When descending a long, steep grade, use engine compression braking by
downshifting, with intermittent use of both brakes. Continuous brake application
can overheat the brakes and reduce their effectiveness.
Riding with your foot resting on the brake pedal or your hand on the brake lever
may actuate the brakelight, giving a false indication to other drivers. It may also
overheat the brakes, reducing effectiveness.
69
Basic Operation & Riding