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Tyre industry preliminary assessment of wet grip on worn C2 and C3 tyres

Document GRBP-73-22

27 January 2021

73rd GRBP session (26-29 Jan 2021)

Submitted by ETRTO

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Previous Documents, Discussions, and Outcomes

73rd GRBP session (26-29 Jan 2021)

5. (d) | UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

16. The expert from EC proposed to include C2 and C3 tyres in the Terms of Reference of IWG WGWT (GRBP-73-02). The expert from ETRTO presented a preliminary assessment of wet grip on worn C2 and C3 tyres (GRBP-73-22) and suggested further modifications to the Terms of Reference (GRBP-73-08). Based on a consolidated proposal in GRBP-73-27-Rev.1, GRBP adopted revised Terms of Reference of IWG WGWT as laid down in Annex III to the session report.

Relates to UN R117 |

Reference Number:	SCUNV-10
Meeting Session(s):	11th SCUNV session (26 Apr)
Document date:	26 Apr 24
Regarding:	Safe and Clean Vehicles

Reference Number:	SCUNV-09
Meeting Session(s):	11th SCUNV session (26 Apr)
Document date:	26 Apr 24
Regarding:	Safe and Clean Vehicles

Reference Number:	SCUNV-11-01/Rev.1
Meeting Session(s):	11th SCUNV session (26 Apr)
Document date:	26 Apr 24
Regarding:	Safe and Clean Vehicles

Reference Number:	TF-AVRS-14-01
Meeting Session(s):	14th TF-AVRS session (27 May)
Document date:	26 Apr 24
Regarding:	Regulation Screening for ADS

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