GAR | GRBP-84-10

GRBP-84-10

UN R41: Proposal for a Supplement to the 04 series of amendments

Source(s)

IMMA

Date

21 Aug 2026

Status

Informal GR review

Subject

UN R41 Motorcycle Noise

Impact

04 series of amendments | Supplement 14

Meeting(s)

GRBP | Session 84 | 2-4 Sep

Agenda item 2. UN Regulation No. 41 (Noise Emissions of Motorcycles)

Proposal to amend Annex 7, paragraph 3.1, to add provisions allowing discard of test runs when additional operating conditions lead to riding conditions not expected to occur in real traffic such as front wheel lift up, apparent wheel spin, chain slap, or engine lugging, and amend paragraph 3.2.2 to specify that if unusual riding conditions occur during testing, the test shall be performed in the next higher gear and maximum vehicle speed shall be reached at line BB’ instead, thereby ensuring consistency with the 05 and 06 series of UN Regulation No. 41.

Downloads

UNECE server

Related documents

Excerpts from session reports

GRBP | Session 84 | 2-4 Sep

5. The representative of IMMA introduced GRBP-84-10. He indicated the intention of IMMA to prepare a working document for consideration at forthcoming sessions of GRBP. The representative of the Netherlands indicated new driving modes for motorbikes can now assist with front/rear wheel lifts, and it was therefore probably not appropriate to call that uncontrolled. He invited IMMA to review the terminology. The representative of Germany supported the statement of the representative of the Netherlands and was supportive to include provisions about assistance systems if they had no impact on flap systems.