Overview
ISO 6563:2025 - "Rear load carrier for wheeled vehicles - Requirements and test methods" defines minimum functional safety requirements and standardized test methods for rear load carriers intended for attachment to the rear of passenger cars and light commercial vehicles (maximum gross weight up to 3.5 t as per ISO 1176). The standard aims to ensure safe transport of bicycles, cargo and luggage when carriers are used according to the manufacturer's instructions, and it complements regulatory directives such as UNECE‑R 26.
Key topics and technical requirements
ISO 6563 covers the full product lifecycle from design verification to user information. Major technical topics include:
- Scope & classification
- Types of rear load carriers (trunk/hatch-mounted, coupling ball/plate, spare‑wheel, chassis‑mounted).
- Materials and environmental durability
- Corrosion resistance (salt spray considerations), weather resistance, cold/heat resistance of plastics and attachment elements.
- Structural performance and test methods
- Static load-bearing capacity in three axes: vertical (Fz), longitudinal (Fx) and lateral (Fy).
- Dynamic tests including Belgian pavé simulation, lane-change manoeuvre, crash simulation, brake test and speed‑bump resistance.
- Measurement of residual displacements, internal component movement and load displacement.
- Fixings and restraining systems
- Resistance of straps, belts, metallic fixings, clamps and other attachments - including tensile/elongation behaviour.
- Vehicle interfaces and lighting
- Interfaces to vehicle, external projections, rear license plate visibility and lighting/signalling requirements.
- Quality assurance and conformity
- Test sample preparation and sequence, measurement uncertainties (e.g., forces ±5 %, masses ±2 %), product marking and required user information (assembly and use instructions).
- Annexes
- Normative annexes provide a test bicycle, Belgian pavé rack specifications, and recommended test setups.
Practical applications and who uses ISO 6563
ISO 6563 is practical for:
- Rear load carrier manufacturers - product design, durability validation, and compliance testing.
- Automotive OEMs and accessory suppliers - ensuring safe vehicle integration and user compatibility.
- Test laboratories and certification bodies - standardized test methods and acceptance criteria.
- Regulators and compliance teams - harmonizing national rules with international best practice.
- Retailers and installers - verifying product marking, instructions and safe installation procedures.
By adopting ISO 6563, stakeholders reduce risk of load loss or vehicle damage, improve product reliability, and facilitate market access through harmonized safety requirements.
Related standards
- ISO 1176 (vehicle classes / gross weight reference)
- UNECE‑R 26 (regulatory directives on rear carriers)
- ISO 1103 (coupling balls), ISO 9227 (corrosion tests), IEC/IEEE 82079-1 (instructions for use) - referenced for detailed test or documentation methods.