Regulation No. 117 (Tyre rolling noise and wet grip adhesion)
Documentation
GRB-58-13
Changes to proposal for Supplement 6 to the 02 series of amendments to UN R117 (Russia)
Changes to proposal for Supplement 6 to the 02 series of amendments to UN R117
Proposal to revise the European Tyre and Rim Technical Organisation (ETRTO) proposals (documents GRB-58-02 and GRRF/2013/30) to correct inconsistencies in time measurement accuracy in annex 6 of the regulation.
GRRF-75-02
Wet grip for C3 tyres: Minimum type-approval level (ETRTO)
Wet grip for C3 tyres: Minimum type-approval level
Supporting presentation to the ETRTO proposal for minimum wet-grip performance thresholds (document GRRF-73-18) to ensure that improvements in tire rolling resistance (per EU CO2 goals) do not result in inadequate wet-grip performance.
GRRF/2013/18
Proposal for corrigendum to UN Regulation No. 117 (ETRTO)
Proposal for corrigendum to UN Regulation No. 117
Supplement 2 to the 02 series of amendments to Regulation No. 117 (Document WP.29/2012/54) as adopted at the June WP.29 session contained a typo where the snow temperature range for the snow grip test should be ‐4°C to ‐15°C, but the ‘minus’ sign was omitted before the first figure.
GRRF/2013/30
Proposal for amendments to Regulation No. 117 (ETRTO)
Proposal for amendments to Regulation No. 117
Text prepared by the European Tyre and Rim Technical Organisation (ETRTO) in order to correct inconsistencies in time measurement accuracy in Annex 6 of UN R 117.
WP.29/2013/66
Proposal for Supplement 6 to the 02 series of amendments to Regulation No. 117
Proposal for Supplement 6 to the 02 series of amendments to Regulation No. 117
Text as adopted by the Working Party on Brakes and Running Gear (GRRF) at its 75th session based upon a proposal by the European Commission, France and ETRTO to introduce wet grip provisions and testing procedures for tyres of categories C2 and C3.