Page 31 - TBIS_15194-2019_(EN)_3nd

TBIS 15194:2019

4.3.3.2 Minimum failure torque

The minimum failure torque of bolted joints for the fastening of handle bars,
handlebar-stems, bar-ends, saddle and seat-posts shall be at least 50 % greater than

the manufacturer's recommended tightening torque.
4.3.3.3 Folding bicycles mechanism

Folding bicycle mechanism; if provided shall be designed so that EPAC can be locked
for use in a simple, stable, safe way and when folded no damage shall occur to any
cables. No locking mechanism shall contact the wheels or tyres during riding, and it
shall be impossible to unintentionally loosen or unlock the folding mechanisms
during riding.

4.3.4 Protrusions
These requirements are intended to address the hazards associated with the users of

EPACs falling on projections or rigid components (e.g. handlebars, levers) on EPAC
possibly causing internal injury or skin puncture. Tubes and rigid components in the
form of projections which constitute a puncture hazard to the rider should be

protected. The size and shape of the end protection has not been stipulated, but an
adequate shape shall be given to avoid puncturing of the body. Screw threads which
constitute a puncture hazard shall be limited to a protrusion length of one major
diameter of the screw beyond the internally threaded mating part.

NOTE Handlebar-ends are covered by the paragraph in 4.3.6.2.

4.3.5 Brakes

4.3.5.1 Braking-systems

EPAC shall be equipped with at least two independently actuated braking-systems. At

least one shall operate on the front wheel and one on the rear wheel. The
braking-systems shall operate without binding and shall be capable of meeting the
braking-performance requirements of 4.3.5.9.

No hand shall need to be taken from the handlebar to operate the brake levers.

If additional braking-systems are implemented, they shall meet the brake
requirements of 4.3.5.

Brake-blocks containing asbestos shall not be permitted.

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