Page 11 - 2016-v.1-Part 3(EN)

TBIS 4210-3:2016

Annex A
(informative)

Structural integrity of the fully assembled bicycle

A.1 Requirement

When tested by the method described in A.2, there should be no system or component failure and no
loosening or misalignment of the saddle, handlebar, controls, lighting equipment, or reflectors.

A.2 Machine test

Mount a fully assembled 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;

— one 10 kg, 18 kg, or 25 kg weight with the dimensions 240 mm × 240 mm on the luggage carrier.

An example of a test arrangement is shown in Figure A.1, in which the bicycle is mounted on two drums.
The diameter of the drums should be in a range from 500 mm to 1 000 mm, and 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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