1. How much is a Bicycle helmet?

The price of a Bicycle helmet varies from factors such as brands, models, materials, functions, and sales channels, so a fixed price cannot be given.Generally speaking, the price of Bicycle helmets ranges from tens of yuan to hundreds of yuan.Economic helmet prices may be around tens of yuan, suitable for consumers with limited daily cycling or budget.And high -end brands, professional -level or more helmets with more special features, such as a helmet with a full helmet, wind mirror or communication system, the price may reach hundreds of yuan or even higher.

2. The difference between expensive and cheap Bicycle helmets

1. Materials and crafts

Low -priced helmets often use cheaper materials. For example, EPS polycopenyethylene foam is used as a lining material. The quality of the shell material and beam band may be unsatisfactory.These materials may be lacking in protective performance and durability.

High -priced helmets may use more high -grade shell materials, such as carbon fiber, and more comfortable lining and bands.These materials not only have better protection performance, but also provide better wearing comfort and durability.

2. design and function

The design of low -cost helmets is relatively simple and the function is relatively basic, which mainly meets basic head protection needs.

High -priced helmets may apply more advanced design concepts and functions, such as pneumatic design, MIPS buffer technology, etc. to improve wearing experience and security.These technologies can effectively reduce the rotation power of the head in the impact, thereby better protecting the head from damage.

3. brand and premium

Due to its brand value and market positioning, its product prices are usually relatively high.brand premium is an important factor in high -priced helmets higher than low -priced helmets.In addition, well -known brands often pay more attention to product quality and after -sales service, so their helmets are usually more guaranteed in terms of quality and reputation.

4. Safety standards and certification

Although low -priced helmets also meet basic security standards, they may perform poorly in some high -level security testing and certification.

High -priced helmets often pass more and higher Levels of security testing and certification, such as CE and CPSC to ensure their safety performance in actual use.

5. Wear comfort and applicability

Low -priced helmets may have certain limitations in wearing comfort and applicability, such as limited size selection and not soft lining.

High -priced helmet pays more attention to wearing comfort and applicability. For example, it provides a variety of size selection, adopts soft and comfortable lining, etc. to meet the needs of different riders.

In summary, the difference between the expensive and cheap Bicycle helmets and cheapness are mainly reflected in the aspects of materials and technology, design and functions, brands and premiums, safety standards and certifications, and wearing comfort and applicability.Consumers should make reasonable choices according to their needs and budget when purchasing.If the budget is limited, you can choose a high -cost mid -range helmet; if you pursue better protection performance and wear experience, you can consider buying professional -grade helmets for high -end brands.

1. How to put Riding glasses when not wearing

Riding glasses can protect the eyes during cycling, but Riding glasses for a long time, and often blowing the sun on Outdoor wind. Therefore, the necessary maintenance work is indispensable. Basic maintenance is to pay attention to the Riding glasses of Riding glasses.Place, how to put Riding glasses when not wearing?

1. Picking the glasses: grab the mirror feet with both hands and remove it on the front. Pay attention to avoid one hand to remove it, so as not to cause deformation damage to the frame.

2. folding mirror box: folding mirror box should start from the left, fold the left mirror leg first, and then fold the right mirror leg.

3. Washing glasses: After the mirror frame and lens are used, it is usually contaminated with foreign objects such as dust and fat. It is necessary to use neutral detergent warm water to clean it, and then dry it with a soft cloth.

4. Place glasses: When placing temporary placement, let the mirror look up or erected to avoid placing it down; if you want to put it in the glasses box, you can use it to wipe it properly, then put it in the glasses box, and then put it in the glasses box.Pay attention to prevent lens and frame scratching.

In addition to being carefully placed on Riding glasses, there are many places to pay attention to the maintenance of ride glasses.

2. How to maintain Riding glasses

The maintenance of Riding glasses must be done:

1. riding the glasses wind to the sun, you need to wipe and clean it in time. When wiping, you should use a clean dedicated mirror cloth. Use your hand to hold the frame on the side of the frame on the side of the mirror. Wipe gently.So as not to cause damage to frames or lenses.

2. When not wearing glasses, use glasses cloth to put in the glasses box. When saving, please avoid contact with corrosive items such as insecticides, toilet products, cosmetics, hair gums, and drugs to prevent ride glasses from deteriorating, discolored, and aging.

3. During the process of wearing Cycling glasses, do not touch the lens with your hands.

4. Do not get it on your head when you do nt wear it temporarily, because your hands and hair are oil, which will damage the lens and it is not easy to wipe.

5. Riding glasses need to fit the face shape to play a good wind -proof and sand prevention effect. If there is a loose discomfort or the screw loose, it may be that the frame is deformed, and it needs to be adjusted in time.

6. If the lenses of the ride of glasses have grinding flowers, scratches, stains, cracks, etc., need to be replaced in time, so as not to see things that are unclear due to the dispersal of the light and cause vision decline.

1. What are the functions of intelligent Riding glasses?

smart Cycling glasses, as the name suggests, are smart glasses prepared for riders. It is both a ride glasses with protective functions and wearable smart devices. The functions of smart Riding glasses include:

1. There is a camera between the eyes, which can be recorded in real time, recorded the cycling video or picture, and uploaded it to the social media.

2. smart Cycling glasses are equipped with a miniature display, which can display various data during cycling, such as cycling speed, calorie consumption, heart rate, etc.; And it has the function of reducing glare, which can be seen even under the sunlight.clear.

3. This intelligent Riding glasses use voice extraction technology. The mirror legs provide two Bone sensors, which can provide users with cycling help by cycling voice prompts.

4. smart Cycling glasses can also be connected to smartphones, temporarily as a terminal device, which can display the incoming person's ID, notification and social network reminder.

In general, there are still many functions of smart Riding glasses, so is it necessary to buy smart Riding glasses?

2. Is it necessary to buy smart Riding glasses?

Although smart Riding glasses have many functions, there are certain defects:

1. Technical restrictions, the technology of intelligent Riding glasses is not particularly perfect.

2. smart Cycling glasses can display information with display screens with glasses, which may have certain hinders of cycling security.

3. The battery life of intelligent Riding glasses is worrying. Considering that many friends are ride on long -distance ride, smart Riding glasses need to be charged after a period of time, otherwise they can only be used as ordinary Cycling glasses.

4. The price of smart Riding glasses is relatively expensive. It costs at least a few thousand yuan, which is much more expensive than ordinary Cycling glasses. Most of them are just enthusiasts. If they are not professional training, they do not require these functions.

In summary, for most of the newly started riders or friends who just like riding, smart Cycling glasses are still more delicious, and there are not much necessary to buy.

Common fault inspections and maintenance of bicycle code tables

1. Check whether the distance between the magnet and the induction switch meets the requirements. If the distance is too far away, it will affect the accuracy of the speed.

maintenance method: adjust the distance between the magnet and the induction switch to the right distance.

2. The contact point of the code watch and the circuit on the seat is dirty, causing poor contact.

maintenance method: Use fine sandpaper to polish.

3. Check whether the connection line of the induction switch to the code table has internal disconnection, resulting in intermittent interruption.Checking method: Dial the multimeter to the "RX1" file, and the red and black surface needles are connected to the two electrodes on the codes. At this time, the front wheels should be turned, and the pointer of the multimeter should be swinged left and right.

maintenance method: The induction switch is normal and the connection is normal; if you do not swing or dial the line gently, the intermittent time is open, there is a breakpoint of the connection, and the connection line needs to be replaced.

4. The above are normal. Please check whether the battery of the code watch should be updated?Using the universal DC voltage V10, the battery voltage for various tables may be different.

maintenance method: As long as the measured voltage is below 60%of the original battery voltage, the battery needs to be replaced.For example, the LR44 twist battery should be 1.5V. If the measured is & lt; 1.0V, the same type of battery needs to be reduced.

5. The code watch may enter the water, causing internal line failure.

maintenance method: Open the rear cover and put the code watch for about 30 minutes at 10-20 cm from the incandescent lamp, but pay attention not to be too close, due to the high temperature damage circuit.

6. If the LCD screen of the code watch is black.

maintenance method: It means that the code watch is damaged, then you need to change the new watch.

7. Because the magnetic body of the bicycle watch is installed on the barrier, it is often in a fast rotation state, and it is often easy to change or even fall off due to touch, collision, and rubbing.

maintenance method: If it is lost, it can be self -made.The method of repairing the bicycle code is as follows: Find a small magnet (such as a magnetic door touch and a small magnet in the Headset, with small size, strong magnetic force, light weight light), a small aluminum Skin, a bottle 502 502Powerful glue. First cut the small aluminum Skin with scissors to 15X20mm; Then fold it on the position of the bar that needs to be installed (form a U -shaped); Inject an appropriate amount of "502" glue in the middle of aluminum Skin and magnets, so that the magnets and aluminum Skin are firmly stuck (about a few minutes); Adjust this magnet up and down to the right position, and inject "502 ".After drying, adjust the position and position of the induction switch, that is, the sue is successful.

1. How to choose the size of the Bicycle helmet

When choosing a Bicycle helmet size, the main basis is the size of the personal head circumference to ensure the comfort and safety of the helmet.

1. Measure the head circumference

soft ruler or tape measures are usually used for measurement.Starting from the forehead of the head, bypassed the above ears, and then returned to the forehead hairline to ensure that the ruler is placed horizontally and close to the scalp.The perimeter measured in this way is the size of the head circumference.

2. Select the helmet size according to the head circumference

Small size (S): Suitable for people with a head circumference size of 52-56cm.

Mid-size (M): Suitable for people with a head circumference size of 56-59cm.

Large size (L): Suitable for people with a head circumference size of 59-62cm.

Please note that these sizes are for reference only, and helmets of different brands and models may have their own size standards.Some brands may provide more detailed size division, such as XS, XXL, etc. to meet the needs of different head circumference.

3. Try to wear and adjust

When buying a Bicycle helmet, it is best to try several helmets of different brands and models to find the size and style that suits you best.

Bicycle helmets are usually equipped with adjustable bands and buckles, which can be tightly adjusted according to individual needs.When trying to wear, it should be ensured that the helmet is closely fitted with the head, but it is tight to cause discomfort.

After wearing a Bicycle helmet, you should check whether it causes oppression or discomfort to the head.At the same time, ensure that the ventilation holes of the helmet are reasonable, so as to keep the head dry during cycling.

4. precautions

The size of the Bicycle helmet should be avoided or too small.Excessive may not provide sufficient protection, and too small may cause discomfort and even affect security.

2. What should I do if I buy a Bicycle helmet?

If you buy a Bicycle helmet, you can take the following methods to improve the comfort and safety of wearing:

1. Adjust the internal pad

Many helmets are equipped with adjustable pads or foam pads.You can try to adjust the position or thickness of these pads to better fit your head.Some helmets can even be replaced. You can buy thicker or more suitable pads to fill excess space.

2. Use additional filling

If there is no adjustable pad inside the helmet, or it still feels too much after adjusting the pad, you can consider using additional filling to fill the space.For example, a small piece of sponge or foam that is similar to the internal material inside the helmet can be cut, and it placed on the forehead or rear head position inside the helmet to reduce the gap.

3. Adjust the headband and buckle ring

Make sure that the headband and buckle of the Bicycle helmet are adjusted to the most tight but tight state.By adjusting these parts, you can make the helmet more closely fit your head to reduce shaking and discomfort.

4. Consider returning or replacement

If the above methods cannot solve the problem, or if you feel that the size of the helmet seriously affects the comfort and safety of wearing, the best choice may be returns or exchanges.Contact sellers or manufacturers to learn about their return and replacement policies, and operate in accordance with the requirements.