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UN R117: Presentation on evolution of tyre limits rolling resistance in new condition wet grip in new & worn condition
Document GRBP-75-30
4 February 2022
Submitted by EC
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Previous Documents, Discussions, and Outcomes
4. (d) | UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

23. The expert from EC proposed to strengthen tyre rolling resistance and wet grip performance requirements (GRBP-75-29 and GRBP-75-30). GRBP invited him to submit an official document for consideration at the next session. The experts from Germany and the Netherlands stressed the importance of rolling noise and the need to include it in the scope of the future modifications as well.

Relates to UN R117 |