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The Working Party on Noise and Tyres (GRBP) is invited to consider a proposal by the experts from the International Motorcycle Manufacturers Association (IMMA) that aims at avoiding different interpretations of the gear used during the Conformity of Production (CoP) testing.
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GRBP/2025/19 | UN R41: Proposal for a Supplement to the 04, 05 and 06 series of amendments
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UN R41: Proposal for a Supplement to the 04, 05 and 06 series of amendments
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Reference Number: GRBP/2025/19
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Proposal to clarify the gear selection procedure pursuant to the amendment to allow deviation from the reference acceleration awot,ref requirement for Conformity of Production tests.
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Submitted by: IMMA
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Meeting Sessions: 82nd GRBP session (3-5
Sep 2025)
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Document date: 19 Jun 25
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Document status: Superseded
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Relevant to
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View full document file for more information
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