A21 · Warning signs

Cyclists

På dansk Cyklister

Your action

Look for cyclists crossing or joining your route and prepare to react.

Common mistake

A warning is not a complete priority rule; check the actual junction and markings.

Source check: 2026-10-16 · Order §13. Road markings order 425, 13 April 2023 · Færdselsstyrelsen — category B, May 2026

A Triangular with a red border: something ahead needs your attention. Outside built-up areas they normally stand 150-250 m before the hazard, closer inside town.