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UN R117: Proposal for a Supplement to the 04 series of amendments
Document GRBP/2024/25
2 July 2024

Proposal to clarify that wet adhesion provisions apply to C1, C2, and C3 tyres, correct ISO and internal references, clarify symbols “ARC” and “ARR” relationships to indoor drum test method, and clarify application to M+S marked tyres.

Submitted by ETRTO
Status: Formal GR review
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Previous Documents, Discussions, and Outcomes
6. (c) | UN Regulation No. 117 (Tyre Rolling Resistance, Rolling Noise and Wet Grip)

27. The expert from ETRTO referred to their document with corrections to the 04 series of amendments to UN Regulation No. 117 (ECE/TRANS/WP.29/GRBP/2024/25) and requested to postpone its consideration, due to comments received from the experts of France, Netherlands and United Kingdom. GRBP agreed with this request and encouraged other experts to provide their comments as well.

Relates to UN R117 |