This agenda item relates to UN R90 Replacement Brake Components.
Working Party on Brakes and Running Gear | Session 78 | 16-19 Sep 2014

23. The expert from Italy presented ECE/TRANS/WP.29/GRRF/2014/23 proposing new requirements for the approval of replacement brake discs for L-category vehicles, taking into consideration the latest technologies available in the market.

24. The proposal received some comments. The expert from Spain recalled the work done on this matter by the informal group on UN Regulation No. 90. GRRF requested that an overview of the differences between this proposal and the outcome of the IWG in 2009. GRRF agreed to revisit this item on the basis of this document or a revised proposal submitted by the expert from Italy taking into account all the comments received.

59. The expert from CLEPA introduced GRRF-78-51 on difficulties linked to the definition of “variant” of brake disc/drum in UN Regulation No. 90. The expert informed that a proposal to UN Regulation No. 90 would be submitted to GRRF for consideration at its next session.

Working Party on Brakes and Running Gear | Session 79 | 16-20 Feb 2015

24. The expert from Italy presented GRRF-79-30, introducing the amendments proposed in ECE/TRANS/WP.29/GRRF/2014/23/Rev.1 as amended by GRR-79-11 and GRRF 79 13 on new requirements for the approval of replacement brake discs for L category vehicles, taking into consideration the latest technologies available in the market.

25. The proposal received some comments. GRRF agreed to revisit this item on the basis of a revised proposal to be submitted by the expert from Italy and taking into account all the comments received

Documentation
GRRF-79-11 | Correction to the proposal to introduce requirements for replacement brake discs for motorcycles (Italy)
GRRF-79-13 | Amendments to document ECE/TRANS/WP.29/GRRF/2014/23/Rev.1 (Italy)
GRRF-79-30 | Presentation of the proposed amendments to Regulation No. 90 (Italy)
GRRF/2014/23/Rev.1 | Proposal for amendments to Regulation No. 90 (Italy)
GRRF/2015/10 | Proposal for amendments to Regulation No. 90 (CLEPA)