ISO/TS 4210-10:2020

Overview

ISO/TS 4210-10:2020 specifies safety and performance requirements for two‑wheeled electrically power assisted cycles (EPACs). It covers design, marking, assembly and testing of complete EPACs and subassemblies, plus guidance on manufacturer information (instructions for use and care). The technical specification applies to EPACs with a maximum saddle height of 635 mm or more, intended for private and commercial use (excluding hire from unattended stations). Electrical systems up to 60 V d.c. (SELV) are within scope.

Key topics and technical requirements

• Electrical requirements
  • Motor controller performance and safety functions
  • Battery design, management and mechanical strength
  • Battery charger requirements (proprietary and non‑proprietary systems)
  • Electrical wiring, cables, couplers and EMC (electromagnetic compatibility)
  • Protection against ingress (IP code) and environmental/operational conditions
  • Performance measurement methods (power/assistance levels, walk‑assist)
  • Anti‑tampering and failure‑mode mitigation
• Mechanical requirements
  • Brakes, handlebar/stem, frame and fork strength, impact and fatigue tests
  • Thermal hazard limits for contact surfaces and ambient conditions
• Safety management
  • Risk assessment, identification of significant hazards (see Clause 5.3)
  • Safety functions for control systems and prevention of unauthorized use
  • Manufacturer’s instructions, marking and labelling requirements
• Test methods and normative annexes
  • Detailed test procedures for EMC, chargers, batteries, lighting and symbols are included as normative and informative annexes.

Practical applications - who uses this standard

• EPAC manufacturers and OEMs: to design and validate compliant bicycles and subassemblies.
• Component suppliers (motors, batteries, chargers, controllers): to ensure parts meet EPAC safety expectations.
• Test laboratories and certification bodies: to apply standardized test methods for performance and safety verification.
• Regulators and procurement teams: to reference consistent safety criteria for market surveillance and purchasing.
• Design and safety engineers: for risk assessments, failure‑mode analysis and label/instruction content.

Related standards

• Part of the ISO 4210 series for cycle safety (see parts 1, 2, 4, 5, 6, 9 referenced in the specification)
• Collaborative alignment with electrotechnical standards (ISO/IEC conventions noted in the foreword)

ISO/TS 4210-10:2020 helps harmonize EPAC safety requirements worldwide - improving rider safety, reducing product risk, and supporting market access through common test methods and clear manufacturer obligations.