GB 3565: Safety Requirements for Bicycles

Safety Requirements for Bicycles under Chinese Standards

GB 3565 contains requirements for the design, assembly and testing, safety and performance of bicycles and undercarriages intended for use on public roads and for which the saddle can be adjusted to provide a saddle height of 635 mm or more. It includes guidelines for instructions on the use and maintenance of bicycles to be sold in the Chinese market.

GB 3565 standard; Brakes, Steering, Frame-fork assembly, Front fork, Wheels, Rims, Tires and Tubes, Pedals and Pedal / Crank Drive System, Saddle, Chain, Chain protector, Lighting, Reflector, Warning Device, Instructions, Marking.

Scope of GB 3565 Standard

TheGB 3565 standard provides a set of guidelines setting out the general safety requirements for bicycles. Applicable to both professional and everyday use bicycles, it covers safety measures related to various features of bicycles. Below are the main elements covered by the GB 3565 standard:

1. Bicycle Frame and Structure

The bicycle frame is one of the most critical parts for safety. The frame directly affects the carrying capacity and durability of the bicycle. TheGB 3565 standard stipulates that the bicycle frame must be durable and safe.

• Frame Durability: The frame must be strong enough to withstand the loads the bicycle is subjected to during use.
• Material Selection: The materials used in the production of the frame must be resistant to safety and environmental influences. In addition, the materials must be non-toxic.

2. Wheels and Brake System

The wheels and braking system are very important to ensure the safety of a bicycle. The brakes must work correctly and the wheels must be stable in order for the bicycle to stop quickly and safely.

• Brake Systems: TheGB 3565 standard requires bicycles to have an effective braking system to stop safely. The braking system must have the capacity to quickly reduce the speed of the bicycle.
• Wheel Durability: The wheels should be sturdy so that there is no risk of any accident or slipping while riding. Also, the smoothness of the wheels is an important safety factor.

3. Handlebar and Management System

The bike's management system is the most important element that allows the rider to control the bike. The handlebars must be in the correct position and easily accessible. TheGB 3565 standard stipulates the safe operation of the entire management system, from the design of the handlebar to the brake lever placement.

• Handlebar Design: The handlebar must be at a height and angle that the rider can comfortably use. At the same time, the handlebars must be stable and not move.
• Brake Levers and Other Controls: Brake levers and other control elements should be designed to be easily accessible to the driver.

4. Pedals and Chain Guard

The pedals are one of the main elements that allow the rider to move the bicycle. The placement and structure of the pedals can affect the safety of the rider. Protecting the chains is also an important safety measure.

• Pedal Safety: Pedals should be designed to minimize the risk of slipping and falling. Also, care should be taken to ensure that the pedals are durable and robust.
• Chain Guards: The bicycle chain should not be designed to pinch the rider's clothing or body parts. Chain guards are necessary to prevent possible accidents.

5. Reflective Features and Visibility

For a bicycle to be safe for night riding, it is important that it has reflective features that increase visibility. TheGB 3565 standard requires bicycles to have reflective materials that increase safety during night rides.

• Reflective Tapes and Reflectors: Visibility can be improved by using reflective materials on various parts of the bicycle. These materials help prevent accidents, especially during night rides.

6. Overall strength and durability of the bicycle

The overall durability of a bicycle is critical for long-term safe use. GB 3565 mandates the use of durable materials to ensure that the bicycle is safe for long-term use.

• Load Carrying Capacity: The carrying capacity of the bicycle should be adjusted according to the body weight of the child or adult and the intended use of the bicycle. A high carrying capacity increases the durability of the bicycle.
• Wear Tests: The bicycle should be subjected to endurance tests in various conditions and any parts showing any signs of wear should be replaced.

Tests performed under GB 3565 standard

• Brake Block Test
• Brake System Load Test
• Braking Performance Test
• Reverse Pedal Brake Linearity Test
• Steering Wheel Group Test
• Impact Tests on Frame-Fork Assembly
• Static Load Test (Wheel)
• Pedal Tests
• Saddle and Saddle Column Tests
• Road Test

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