Page 40 - TBIS_79010-2019_(EN)_1nd

TBIS 79010:2019
4.5 Structural integrity of the fully assembled CARGO BIKE

4.5.1 Requirement

When tested by the method described in 4.5.2, there should be no system or

component failure and no loosening or misalignment of the saddle, handlebar,
controls, lighting equipment, or reflectors, and the function of electric power assisted

should be normal.

4.5.2 Test methods
Mount a fully assembled electric power assisted bicycle on a test machine. The

following weights should be applied:

－one 36 kg weight with a pin for insertion in the seat-post and divided into two

halves to be hung, one on each side;

－two 18 kg weights with fixtures for attaching them to the cranks in place of the

pedals;
－two 6,75 kg weights with fixtures for attaching them to each side of the handlebar;

－maximum permissible weight on the luggage carrier.

An example of a test arrangement is shown in Figure 14, in which the CARGO BIKE is

mounted on two drums. The slots should have a width of 50 mm ± 2,5 mm, a

thickness of 10 mm ± 0,25 mm, and 45° chamfered edges of half their thickness. The

circumferential spacing between the centrelines of two consecutive slots should be
not less than 400 mm.

Rotate the drums to give a linear surface speed of 8 km/h (±10 %) for a period of 6 h.

The tyres of the bicycle should be inflated to the maximum inflation pressure.

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