In 2021, the number of people eligible to vote in Wales was just under 2,350,000 according to this (presumably, its risen slightly since then).

https://www.gov.wales/electoral-roll-2021

If we make the questionable assumption that all who have signed the petition are eligible to vote in Wales, that means that around twenty per cent of Welsh voters have signed it. That hardly justifies the triumphalist tone of a small minority on here who talk as if the whole country is up in arms about the new speed limit.

Ill repeat that my view is that the 20 mph I speed limit is uncalled for, but Im not that bothered about it and the sort of Party politicking seen from some on here only makes me less likely to sign any petition .