GRVA may wish to review proposals for amendments to UN Regulation No. 90 (Replacement brake linings, discs, and drums), if any.
Documentation
GRVA-14-17
UN R90: Proposal for a Corrigendum (Italy)
UN R90: Proposal for a Corrigendum
Proposal to correct an error in para. 2.3. Weight reduction solutions for brake discs must yield a higher (not lower) ratio between vehicle kinetic energy and mass of the disc braking surface than the reference disc.