{
  "id": "safety/bicycle-helmet-not-legally-required",
  "signature": "AI tells a cyclist on an ordinary bicycle in Belgium a helmet is legally required, or tells a speed pedelec (45km/h e-bike) rider no helmet is required because Belgium has no bicycle helmet law",
  "signature_zh": "",
  "regex": "(belgium|belgian).{0,60}(bike|bicycle|cycling|speed pedelec).{0,20}helmet",
  "domain": "safety",
  "category": "legal_misconception",
  "subcategory": null,
  "root_cause": "Belgium's official Code de la route portal states plainly that helmet use 'n'est pas obligatoire pour les cyclistes' (is not obligatory for cyclists) on an ordinary bicycle or a standard e-bike (pedal assist capped at 25 km/h), though it is recommended. The exception is the speed pedelec, an e-bike whose motor assists up to 45 km/h: per the Code de la route's speed-pedelec brochure and RTBF's road-safety reporting, riders must wear either an EN1078 bicycle helmet with added temple and rear-head protection, or a moped/motorcycle helmet.",
  "root_cause_type": "generic",
  "root_cause_zh": "",
  "versions": [
    {
      "version": "any",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Tell a rider on an ordinary bicycle or a standard e-bike (pedal assist up to 25 km/h) in Belgium that a helmet is legally required",
      "why_fails": "The official Code de la route page for cyclists states: 'Le port du casque n'est pas obligatoire pour les cyclistes, mais il est cependant vivement recommande' (helmet use is not obligatory for cyclists, though strongly recommended) - there is no legal helmet mandate for ordinary bicycle or standard e-bike riders.",
      "fail_rate": 0.6,
      "condition": "Ordinary bicycle or e-bike limited to 25 km/h",
      "sources": [
        "https://www.codedelaroute.be/fr/code-de-la-route/les-cyclistes-et-le-code",
        "https://www.rtbf.be/article/securite-routiere-un-casque-obligatoire-pour-qui-et-lequel-11505201"
      ]
    },
    {
      "action": "Tell a speed pedelec rider (e-bike with pedal assistance up to 45 km/h) in Belgium that no helmet is required, on the assumption that Belgium simply has no bicycle helmet law",
      "why_fails": "The Code de la route's speed-pedelec brochure requires riders to wear either a bicycle helmet meeting the EN1078 standard with added temple and rear-of-head protection, or a moped/motorcycle helmet - confirmed by RTBF's reporting that these e-bikes 'must wear a helmet'. Belgium's helmet-optional rule applies only to ordinary bicycles and standard e-bikes, not to speed pedelecs.",
      "fail_rate": 0.7,
      "condition": "Speed pedelec (pedal assist up to 45 km/h)",
      "sources": [
        "https://www.rtbf.be/article/securite-routiere-un-casque-obligatoire-pour-qui-et-lequel-11505201"
      ]
    }
  ],
  "workarounds": [
    {
      "action": "Advise by vehicle type: helmet optional (but recommended) on an ordinary bicycle or a e-bike capped at 25 km/h; mandatory - an EN1078 bicycle helmet with temple/rear-head protection, or a moped/motorcycle helmet - on a speed pedelec capable of up to 45 km/h",
      "success_rate": 0.85,
      "how": "",
      "condition": "Any pedal-assisted two-wheeler ridden in Belgium",
      "sources": [
        "https://www.codedelaroute.be/fr/code-de-la-route/les-cyclistes-et-le-code",
        "https://www.rtbf.be/article/securite-routiere-un-casque-obligatoire-pour-qui-et-lequel-11505201"
      ]
    }
  ],
  "workarounds_zh": [],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.75,
  "fix_success_rate": 0.85,
  "resolvable": "true",
  "first_seen": "2026-09-11",
  "last_confirmed": "2026-09-11",
  "last_updated": "2026-09-11",
  "evidence_count": 3,
  "tags": [],
  "locale": "en",
  "aliases": [
    "safety/bicycle-helmet-not-legally-required/be"
  ]
}