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ISO 9129:2008

Motorcycles — Measurement methods for moments of inertia

May 7, 2008

General information

90.60     Sep 3, 2026

ISO

ISO/TC 22/SC 38

International Standard

43.140  

English  

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Published

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Scope

ISO 9129:2008 specifies a measuring method for determining the moments of inertia of the motorcycle and of the motorcycle/rider combination. It applies to two-wheeled motorcycles.
Other measuring methods can be used if it is demonstrated that the results are equivalent.
Measurement results obtained exclusively by the method described in ISO 9129:2008 cannot be used for an evaluation of vehicle stability because they deal with only one aspect of this very complex phenomenon.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9129:1988

NOW

PUBLISHED
ISO 9129:2008
90.60 Close of review
Sep 3, 2026