Motor
bicycles first registered before 1 January 1927, must have a braking system
which works on at least one wheel.
Motor bicycles registered on or after 1 January 1927, must have an efficient
braking system with two means of operation or two braking systems with separate
means of operation.
Various locations may be used for braking controls. Some motor bicycles have both
braking systems operated from the handlebars and some are linked where both the
brakes to the wheels can be operated from either control.
The vehicle presenter should be advised of any defects found on an ABS system.
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1. Check that the
motor bicycle is equipped with the appropriate braking system or systems.
2. Check the condition and security of all controls and mountings.
3. Operate the brake pedal and lever fully several times and look for
a. wear at pivots
b. reserve travel
c. the position of the lever or pedal in relation to the foot rest or handlebar
d. smoothness of operation.
4. In the case of hydraulic systems, fully apply the control twice, first slowly
and then rapidly, each time to a point where sustained pressure can be held and
check for creep and sponginess.
5. Check components for corrosion, distortion and modifications
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1. The motor bicycle
does not have the appropriate braking system or systems fitted according to its
age.
2.
a. An insecure brake control or mounting
b. an attachment screw loose or missing
c. a fractured control lever or mounting.
3
a. Excessive wear at control lever pivots
b. inadequate reserve travel
c. a control which is inoperative or so damaged, positioned, bent or shortened
that the brake cannot be readily applied
d. a control which cannot be applied and released smoothly.
4.
a. a hydraulic system control which creeps under load
b. sponginess indicating air in the hydraulic system.
5. deliberate modification which significantly reduces the original strength of
any component. Excessive corrosion, severe distortion, a fracture or an inadequate
repair to a component.
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