What are the components and detailed structure of an electric power-assisted bicycle? (P2)

6. Saddle

A saddle is a part on a bicycle that is used by the rider to sit and maintain a balanced position on the bike. The Saddle is designed to conform to the user's body shape and riding position, helping to reduce pressure on the saddle contact points, while optimizing the bike's handling and stability. Saddles are made from a variety of materials such as leather, plastic, kevlar or carbon, with interior cushions made of foam, gel or carbon fiber to absorb shock and increase rider comfort. The size and shape of the saddle is also important to match the riding position and body size of the rider. Many types of saddles can be adjusted in tilt and height to optimize the rider's riding posture. Another important factor when choosing a saddle is the width and shape of the pad. Wider pads are generally more comfortable, but they also increase friction and affect the rider's movement. The shape of the pad also affects the riding position and comfort of the rider. Choosing and using the right saddle is very important to ensure safe, comfortable and efficient riding.

See also: ADO DECE 300 Lite power-assisted bicycle

7. Seat post

A seat post is a part of a bicycle that is attached to the frame and used to hold and adjust the position of the saddle according to the height. Seat post is usually made of aluminum or aluminum alloy to ensure durability and lightness. Seat post dimensions are usually measured by the diameter of the tube and are designed to match the size of the saddle tube on the chassis. To adjust the position of the saddle according to the height, the user can loosen the clamping screw on the seat post and move the saddle up or down vertically. Once the desired position is reached, the user simply tightens the clamping screw to secure the saddle in that position. Seat posts can also have a variety of features, including the ability to shock absorbers to reduce the impact on the driver, or the ability to fold for convenient storage and transportation. Proper selection and use of a seat post is important for safe, comfortable, and efficient use of a bicycle.

8. Rear triangle/ swing arm

The rear triangle or swing arm is the part of the bicycle frame that is located at the rear and connects the saddle tube and the rear wheel axle. Rear triangle is usually made of steel, aluminum or aluminum alloy. It has a three-sided design and is responsible for keeping the rear wheel stable and fixed while the bike moves. Swing arm is a rear triangle used on bicycles with independent suspension, such as mountain bikes. Swing arm can move up and down to absorb shock and reduce the impact on the driver when moving on difficult terrain. The rear triangle and swing arm are an important part of the bike frame, ensuring that the rear wheel is kept stable and fixed while the bike moves. They also play an important role in transmitting power from the rear wheel to the driveline and transmitting power from the drivetrain to the rear wheel.

9. Cassette

The cassette is an important part of a bicycle's transmission system, mounted on the rear wheel and used to change the gear ratio. Cassettes are usually made of steel or aluminum alloy, have many different sized serrations stacked on top of each other and fixed with a screw on the rear wheel axle of the vehicle. The total number of teeth on the cassette may vary depending on the bike type and intended use. The multi-toothed cassette will allow the driver to select a variety of ratios to adapt to different terrain and travel speeds. When the driver uses the shifter on the vehicle, a chain moves from the front shifter to the cassette above the rear wheel, and passes through different cogs on the cassette to create different gear ratios. . The cassette is an important part of a bike's powertrain and can be replaced as needed to increase the bike's performance and durability.

10. Rear dérailleur

The rear derailleur is an important part of a bicycle's transmission system, mounted on the rear wheel and used to change gear ratios by switching the chain between different cogs. on cassettes. Rear derailleur is responsible for moving the chain between different teeth on the cassette to change the gear ratio. It is controlled by a handle or a button on the bike's handlebars, to change the position of the rear shifter and make the chain move up or down on different cogs on the cassette. The rear derailleur is usually made of aluminum or an aluminum alloy, with a set of swingarms to keep the chain rigid and moving precisely across the different cogs on the cassette. It can be adjusted to ensure smooth and precise movement, and can be replaced as needed to increase powertrain performance and durability. The rear derailleur is an important part of a bicycle's powertrain and plays an important role in changing the gear ratio so that the rider can easily adapt to different terrain and travel speeds.

See also: ADO A20 power-assisted bicycles

11. Spoke

Spokes are long, thin metal rods that connect the bike's axle and the wheel's bearings, helping the wheel to keep its shape and spin more smoothly. Spoke is usually made of stainless steel, aluminum or carbon. They come in different diameters depending on the vehicle type and intended use. Spoke is usually mounted diagonally across the bearing, from the wheel hub to the bearing holes. By adjusting the spoke tension, the driver can adjust the precision and stiffness of the wheel, while increasing stability and avoiding shaking. Spoke can be replaced when damaged or broken. Replacing spokes is a simple job, but should be done by an experienced or professional bicycle repairman to ensure the safety and efficiency of the wheel system. In a nutshell, the spoke is an important component of a bicycle's wheel system, helping to keep the wheel running smoothly and steadily.

12. Salted

Rim is the outer part of the wheel, which helps to hold and bear the load of the tire and spoke. Rims are usually made of aluminum, aluminum alloy or carbon, with different diameters and widths depending on the vehicle type and intended use. Rim has an important role in supporting the tire and spoke of the wheel. It must ensure the accuracy and rigidity as well as the durability of the wheel. A good rim will help the wheel operate more smoothly and avoid shaking, while minimizing the forces of bumps and shocks on different terrain. Rim also affects the braking ability of the bike. The rim must have good grip so that the tire can be braked safely and effectively. A good rim will also help prolong the life of the tire and spoke by minimizing friction between them and the rim. In addition, the rim is also designed with many different designs and colors, creating diversity and aesthetics for the bike. In short, the rim is an important part of the bicycle wheel, playing an important role in supporting the tire and spoke, increasing the stability and braking ability of the bike, and creating diversity and aesthetics for the bike. bicycle.

13. Tyres

Tires are an important component of bicycle wheels, helping to create a bond between the vehicle and the terrain, increasing stability and avoiding vibration. Tires are usually made of rubber or other materials, with different diameters, widths and groove patterns depending on the vehicle type and intended use. Tires are usually classified by diameter and width, for example 26x2.0 inches, 27.5x2.4 inches or 29x2.6 inches. Tires can also be designed for different types of terrain, from smooth to rough terrain. The tread pattern on the tire helps to keep the track and increase the vehicle's controllability on different terrain. The inner layers and texture of the tire also affect the puncture resistance and life of the tire. Tires can also be replaced as needed. Choosing the right tire and the right size for your vehicle is important to ensure the best safety and performance of your wheel system. In a nutshell, tyres are an important part of a bike's wheels, helping to increase stability and avoid vibrations, provide grip and control over varying terrain, and also affect penetration resistance. puncture and tire life.

14. Chain

Chain is an extremely important part of a bicycle's drivetrain. Chain connects the disc set and the rear wheel, transferring the force from the driver's foot to the wheel. Chain is made of steel, with high strength and rigidity to withstand large loads and friction. Chains are usually 3/32 inch or 1/8 inch wide and have different number of hooks depending on the number of gears of the disc set and rear sprocket. Chain needs regular maintenance and lubrication to ensure smooth operation and avoid malfunctions during use. When the chain is slippery or too long, it can cause squeaks, fail to drive, and cause wear and tear on other parts of the drivetrain. When the chain is damaged or needs to be replaced, it can be removed and replaced with a new chain suitable for the size and type of the disc and rear sprocket. In a nutshell, the chain is an important part of a bicycle's drivetrain, transferring power from the rider's foot to the wheel. It needs regular maintenance and lubrication to ensure smooth operation and avoid malfunctions, and can be replaced as needed.

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