Page 34 - TBIS_15194-2019_(EN)_3nd

TBIS 15194:2019

4.3.5.3 Attachment of brake assembly and cable requirements

Cable pinch-bolts shall not sever any of the cable strands when assembled to the
manufacturer's instructions. In the event of a cable failing, no part of the brake
mechanism shall inadvertently inhibit the rotation of the wheel.

The cable end shall either be protected with a cap that shall withstand a removal
force of not less than 20 N or be otherwise treated to prevent unravelling.

NOTE See 4.3.3 in relation to fasteners.

4.3.5.4 Brake-levers – Position of applied force
For the purposes of braking tests in this standard, for brake-levers similar to Type A

or Type B, the test force shall be applied at a distance, b, which is equal to either
dimension a (see Figure 3 — a) and b)) as determined in 4.3.5.2.2.2 or 25 mm from
the free end of the brake-lever, whichever is the greater (see Figure 4).

F Applied force
b =25 mm

Figure 4 —Position of applied force on the brake-lever type A

4.3.5.5 Brake-block and brake-pad assemblies – Security test

4.3.5.5.1 Requirement

The friction material shall be securely attached to the holder, backing-plate, or
shoe and there shall be no failure of the braking system or any component thereof
when tested by the method specified in 4.3.5.5.2.
4.3.5.5.2 Test method

Conduct the test on a fully-assembled bicycle with the brakes adjusted to a correct
position with a rider or equivalent mass on the saddle. The combined mass of the
bicycle and rider (or equivalent mass) shall be 120 kg.

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