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TBIS 15194:2019
Annex G

(Informative)
Fork mounting fixture

The fork shall be mounted in a fixture representative of the head-tube and gripped in

the normal head-bearings. The distance between the bearings can have an influence
on the results. Therefore, when known the real mounting distance shall be used with
a tolerance of ± 5 mm. If no indication about the distance is given, a value of (150 ± 5)

mm shall be taken. The measurement points are taken from the middle of the
bearings. Examples of distance measurements are given in Figure G.1.
During loading, the fork steerer will bend and may touch the dummy head-tube. The

design of the dummy tube shall be such that this contact can’t occur.




















a) Measurement with external cup bearings





















b) Measurement with integrated bearings


d Distance between the bearings

Figure G.1 — Examples of distance measurements





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