Page 98 - TBIS_15194-2019_(EN)_3nd

TBIS 15194:2019

1 Pedal
2 spindle
3 Mass
4 Spring
Figure 41-2 — Pedal/pedal-spindle: dynamic durability test

4.3.12.6 Drive-system – Static strength test

4.3.12.6.1 Requirement

a) Drive-system with chain

When tested by the method described in 4.3.12.6.2, there shall be no fracture of

any component of the drive system, and drive capability shall not be lost.
b) Drive-system with belt

When tested by the method described in 4.3.12.6.3, there shall be no fracture of
any component of the drive.

system, and the belt shall not slip/skip, fracture or cause any loss in drive
capability. Smooth sliding between pulleys and belt is allowed at a rate not

exceeding 1 °/s at the drive axis.
4.3.12.6.2 Test method for drive-system with chain

4.3.12.6.2.1 General

Conduct the drive system static load test on an assembly comprising the frame,

pedals, transmission system, rear wheel assembly, and, if appropriate, the
gear-change mechanism. Support the frame with the central plane vertical and with
the rear wheel held at the rim to prevent the wheel rotating.

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