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ISO 4106:2026

Motorcycles — Engine test code — Net power

Mar 12, 2026

General information

60.60     Mar 12, 2026

ISO

ISO/TC 22/SC 38

International Standard

43.140  

English  

Buying

Published

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Scope

This document 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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4106:2012

NOW

PUBLISHED
ISO 4106:2026
60.60 Standard published
Mar 12, 2026