GB20074-2017
External projections for motorcycles and mopeds
摩托车和轻便摩托车外部凸出物
GB 20074-2017 is a current mandatory Chinese national standard for External projections for motorcycles and mopeds. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Jan 1, 2018.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to the design and manufacturing of motorcycles and mopeds regarding their external projections. It is a mandatory standard for all manufacturers targeting the Chinese market. It specifically covers the classification, general requirements, and special technical requirements for external protrusions to minimize injury risks to pedestrians and riders. Note: Rearview mirrors that have already obtained type approval are exempt from this standard.
Technical requirements
The standard categorizes external projections into Group 1 parts and Group 2 parts based on the contact angle (α) measured during a specific test. Manufacturers must ensure that no outward-facing sharp parts exist that could cause bodily injury during collisions. Components made of soft rubber or plastic with a Shore hardness below A60 are generally considered compliant. For two-wheeled motorcycles, the standard specifies detailed curvature radius requirements for various components, including plate parts, stem parts, rear footrests, rear luggage racks, and windshields. Specific design criteria must be met for clutch and brake levers, front fenders, fuel tanks, and ignition keys to eliminate sharp edges. For three-wheeled motorcycles, the requirements vary depending on the specific type (e.g., sidecar or forward-facing trike). Some components may need to comply with the passenger car external projection standard (GB 11566), while others must meet the specific motorcycle requirements outlined in this document. Manufacturers must clearly state the applicable standard in their technical documentation.
Testing methods
The standard utilizes a specific testing apparatus (detailed in Annex A) to simulate contact with the vehicle. The device is moved along both sides of the motorcycle from front to back. The test measures the contact angle α to classify the protrusion. The test requires a specific rider weight and height to simulate real-world conditions.
FAQs
What products are regulated under GB 20074-2017?
It regulates motorcycles and mopeds, specifically focusing on their external projections and protrusions to ensure pedestrian and rider safety.
Are there any updates from the previous version of GB 20074?
Yes, GB 20074-2017 replaces the 2006 version, modifying the scope, adding new definitions (like contact angle and R point), and introducing specific technical requirements for three-wheeled motorcycles.
How does GB 20074-2017 relate to other standards?
For certain enclosed parts or three-wheeled motorcycles, the standard references GB 11566 (External projections for passenger cars) as an alternative compliance path.
The summary above provides a high-level overview of GB 20074-2017. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 20074-2017 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- T80
- ICS
- 43.140
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- Ministry of Industry and Information Technology
Relationships
Replaces:GB 20074-2006