British Standards Institution

Source:: ISO
Committee:: AUE/14 - Motor cycles and mopeds
Categories:: Motorcycles and mopeds
Comment period start date:: 14/04/2025
Comment period end date:: 07/06/2025
Number of comments:: 0

Comment by:

7th Jun

Scope

This International Standard specifies methods for evaluating the performance of engines designed for motorcycles as defined in ISO 3833, in particular with a view to the presentation of power curves and specific fuel consumption at full load as a function of engine speed, for net power assessment. It is applicable to reciprocating internal combustion engines (spark-ignition or compression-ignition) — excluding free-piston engines — and rotary piston engines, either naturally aspirated or pressure-charged and equipped with either mechanical pressure-charger or turbocharger. Particular specifications for the test of compression-ignition engines are specified in Annex A.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

24/10/2024

3. Public Comments

Public Comments start date:

14/04/2025

Public Comments end date:

07/06/2025

Learn more about the standards development process

Standards Development

BS ISO 4106 ISO 4106 Motorcycles. Engine test code. Net power

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