UN R117: Proposal for a Supplement to the 02 series of amendments
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Proposal to adapt the rolling-sound measurement procedures to accommodate special C2 tyres presenting a section width wider than 200 mm, aspect ratio lower than 55, rim diameter code lower than 15 and without any dual fitting indication (i.e. the front size 175/75R15 LT and the rear size 235/50R14 LT or the front size 175/75R15 LT and the rear size 265/50R14 LT).

Reference Number: GRBP/2020/6
Origin: Japan
Date: 11 November 2019
Meeting(s):
GRBP-71
Proposal Status: Superseded
Related Documents:
WP.29/2020/75 | UN R117: Proposal for Supplement 12 to the 02 series of amendments
Discussion(s):
Working Party on Noise and Tyres | Session 71 | 28-31 Jan 2020

21. The expert from Japan introduced an amendment which addressed unique light trucks available on the Japanese market (ECE/TRANS/WP.29/GRVA/2020/6). The expert of ETRTO proposed a slight modification (GRBP-71-29). GRBP adopted the proposal, as contained in Annex VII, and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2020 sessions Supplement 12 to the 02 series of amendments to UN Regulation No. 117.