This agenda item relates to UN R90 Replacement Brake Components.
Working Party on Brakes and Running Gear | Session 80 | 15-18 Sep 2015

26. The expert from Italy presented GRRF-80-31, introducing ECE/TRANS/WP.29/GRRF/2014/23/Rev.2 and GRRF-80-37 and proposing requirements for the approval of replacement brake discs for L‑category vehicles, taking into consideration the latest technologies available in the market as well as comments received during the previous session of GRRF. GRRF adopted the proposal with the following amendments:

(a) the proposed transitional provisions (paras 12.1 to 12.6) shall be deleted;
(b) The note under Table A15/2.9 shall read: “There are no groups…”

27. The expert from CLEPA introduced ECE/TRANS/WP.29/GRRF/2015/22 proposing to enable the approval according to Regulation No. 90 of test groups instead of single variants. GRRF adopted the proposal with an amendment below:

In paragraph 4.2.3.(b), for “approval document” read “communication document”

28. GRRF adopted the proposal as amended and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2016 sessions, as Supplement 3 to the 02 series of amendments to Regulation No. 90.

Working Party on Brakes and Running Gear | Session 81 | 1-5 Feb 2016

25. The expert from CLEPA presented ECE/TRANS/WP.29/2016/22 based on GRRF-80-12 proposing amendments to provisions defined for equivalent brake discs and drums and a relaxation of the requirement on the thickness variation for interchangeable replacement discs or drums. The expert presented a revised proposal GRRF-81-04 limiting the thickness variation requirement modification to vehicles of category O2, O3, N3 and M3. The expert from Italy expressed his concern with the proposed requirement relaxation. After discussion, GRRF agreed on the revised document GRRF-81-04-Rev.1. GRRF adopted the proposal amended by Annex IV to the report and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2016 sessions, as Supplement 3 to the 02 series of amendments to Regulation No. 90.

Documentation
GRRF-86-37 | UN R90: Presentation highlighting cost concerns with the new 1958 Agreement approval numbering system (CLEPA)
GRRF-86-39 | UN R90: Report of the Special Interest Group
GRRF-86-40 | UN R90: Proposal for amendments (CLEPA)
GRRF-86-40/Rev.1 | UN R90: Proposal for amendments
GRRF-86-41 | UN R90: Draft proposal for amendments to Annex 7 (Spain)
WP.29/2016/58 | Proposal for Supplement 3 to the 02 series of amendments to Regulation No. 90