General
An optional anti-lock brake system (ABS) is available on Police models. Follow the brake application procedure that applies to motorcycle being ridden.
Non-ABS Brake System
Apply brakes uniformly and evenly to prevent wheels from locking. Use front and rear brakes equally for best results.
WARNING
Do not apply brake strongly enough to lock the wheel. A locked wheel will skid and can cause loss of vehicle control, which could result in death or serious injury. (00053a)
ABS: How it Works
Sensors at front and rear wheels monitor wheel speed and send the inputs to a controller. The controller in the ABS module processes the inputs to determine imminent wheel lock up. Independent control systems control the front and rear wheels.
If one wheel slows down more than the other during braking, or deceleration doesn't match a profile stored in memory, the controller instantly responds by sending a command to the solenoid valve, which halts or releases hydraulic pressure to the brake caliper, then reapplies it once the wheel begins to speed up again. This cycle, which is the electronic equivalent of manually pumping the brake, is repeated many times per second.
To alert the rider that ABS is operating a pulsing sensation or slight vibration may be felt in the brake pedal and/or hand lever. Sometimes the controller may make a grinding or clicking noise. This means that the ABS is working properly. The pulsation or noise originates from the rapid opening and closing of the solenoid valves.
ABS: Tires and Wheels
ABS motorcycles must always use tires and wheels that are the same as the original equipment. The ABS monitors the rotational speed of the wheels through individual wheel speed sensors. Changing to different diameter wheels or different size tires can alter the rotational speed. This can upset the calibration of the ABS and have an adverse effect on its ability to detect and prevent lockups. Tire inflation pressure that is significantly low also can have an adverse effect.
ABS: How to Use
Apply brakes firmly and continuously with the motorcycle upright. Do not modulate or "pump" brake controls. Pumping the brakes significantly reduces the effectiveness of the ABS. Use front and rear brakes equally for best results. It is important NOT to take your foot off the brake pedal or release the brake hand lever when the pulsation or noise occurs, but maintain firm pressure on the brakes.
In many instances, it also reduces stopping distances in emergency braking situations, particularly on wet and slippery roads.
WARNING
ABS cannot prevent lockup of rear wheel due to engine braking. ABS will not aid in cornering or on loose/uneven surfaces. A locked wheel will skid and can cause loss of vehicle control, which could result in death or serious injury. (00362a)