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Document Title UN R30: Proposal for a Supplement to the 02 series of amendments
Reference Number GRBP/2020/21
Date
24 Jun 2020
Summary Proposal to expand and improve the current definition of a radial structure while ensuring the radial tyres key features (mechanical decoupling between the tread and the bead).
Source(s) France
Rulemaking Area(s) UN R30 Pneumatic Tires
Proposal Status Superseded
Meeting(s)
Related Documents
GRBP-72-24 UN R30: Proposal for amendments to document GRBP/2020/21 (superseded)
GRBP-72-22 Radial definition proposal
GRBP/2021/9 UN R30: Proposal for a Supplement to the 02 series of amendments (superseded)
GRBP-76-04 UN R30: Study on the proposal for a new radial tyre definition
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Excerpts from session reports related to this document
GRBP | Session 72 | 7-9 Sep 2020

11. The expert from France proposed a new definition of “radial tyre” (ECE/TRANS/WP.29/GRBP/2020/21 and GRBP-72-22), which was amended by the expert from EC (GRBP-72-24). The expert from Japan held the view that the proposal was not sufficiently clear. The expert of ETRTO pointed out that his organization would need technical justification to support the proposal. The Chair invited all experts concerned to internally re-discuss the proposal and to submit an updated document to the next session.

11. The expert from France proposed a new definition of “radial tyre” (ECE/TRANS/WP.29/GRBP/2020/21 and GRBP-72-22), which was amended by the expert from EC (GRBP-72-24). The expert from Japan held the view that the proposal was not sufficiently clear. The expert of ETRTO pointed out that his organization would need technical justification to support the proposal. The Chair invited all experts concerned to internally re-discuss the proposal and to submit an updated document to the next session.

11. The expert from France proposed a new definition of “radial tyre” (ECE/TRANS/WP.29/GRBP/2020/21 and GRBP-72-22), which was amended by the expert from EC (GRBP-72-24). The expert from Japan held the view that the proposal was not sufficiently clear. The expert of ETRTO pointed out that his organization would need technical justification to support the proposal. The Chair invited all experts concerned to internally re-discuss the proposal and to submit an updated document to the next session.