There’s been some mass confusion with Cefn Road – and not just that stretch. Agreed there are some conflicting messages with 40mph / National Speed Limit Signs. Further up towards Rhosnesni they removed a 30mph sign – so people don’t know (on that stretch at least) whether it’s 30 or 40 (they tend to assume the latter).
After a bit of previous debate on here about this very topic a temporary(ish) looking electronic 30mph sign appeared by the new roundabout (Abenbury) but has subsequently disappeared again!!
People are unlikely to get caught for speeding here (doing over 30 anyway) as by law I don’t think anything would be enforceable due to lack of clear signage.