What should I pay attention to when buying a bicycle, and what should I pay attention to when buying

There are three things you should pay attention to when buying a bicycle.

1. Brand: The quality of big-name bicycles is reliable, and the after-sales service is good, such as Giant and Merida, and the stores are available all over the country, and the warranty is easy.

2. Authenticity: Be sure to buy from a store that can issue a formal invoice, the current invoices are machine-typed, handwritten must be fake, and there are many fake fixed invoices.

3. Size: Be sure to choose a car that suits your size, don't buy a car that is too big because it is cheap or good-looking, and it is easy to cause harm to yourself. (The specific method of choosing the size is in my space, you can take a look, so I won't repeat it here).

Happy riding!

Hello friends, after reading your description, I don't know if I can't know, I haven't heard of these brands, is it a foreign brand?? I don't know what the price of these cars is.

You ask what you should pay attention to, summarize my two experiences of buying a car, and talk to you.

1. Check the quality of the whole vehicle, I believe that since you dare to buy foreign brands, you should know some knowledge. Try to choose products from well-known brands, your small store really can't guarantee the quality, really, or the specialty store rest assured, you don't want to save a little money, buy a copycat, afraid of this.

Choose the model that suits your use Mountain Road Hybrid Lightweight Lady, etc.2 Let the clerk help you choose the frame model, and it will be comfortable to ride if it matches your height.

3. Check the quality of the car assembly Here it is recommended that you buy a better bicycle, which is safe, comfortable, and good-looking, and you can rest assured when riding, the only drawback is that you are afraid of being stolen. If you don't understand you can omit these, Giant car is good, if you say all foreign brands, I now ride a famous car OK, 4500 yuan, I feel that the domestic 2500 yuan car configuration is basically the same, the advantages of painting and baking paint are better.

Having said that, I don't know if you can understand it, thank you.

I took a look, these cars will not be copycats, you can rest assured to buy your favorite model.

Look at the steel number on the frame. are all unique codes. There is a corresponding code on the instruction manual and certificate.

It's best to go to the store to buy, some things can't be seen, and there is no after-sales, I hope it will help you.

The upstairs are all good. As a reminder, don't buy Rex. Rex is just a low-grade brand produced by a small factory in Tianjin. Impersonating an Italian brand. In fact, the quality is very poor. I myself suffered from it.

Look at the steel number on the frame. If you can give it a test ride. Be careful not to buy a dirty car.

Look at the steel number on the frame. are all unique codes.

Branding matters. Generally, the quality of well-known brands is better!

1. Frame. The size of the frame determines whether the riding position is comfortable, so first determine what size frame your height will fit in. The size of the mountain bike frame is calculated in inches, and the Europeans, Americans and Asians have their own sizes, and domestic car shops do not distinguish between the two designs.

In general, the comparison is as follows:

15 16 inches - suitable height: 150cm 165cm;

17 18 inches - suitable height: 165cm 175cm;

19 20 inches - suitable height: 175cm 185cm;

21 22 inches - suitable height: 185cm 195cm;

2. Wheel diameter. The wheel diameter of a mountain bike is often referred to as "26 inches", where the inch is also an inch, which refers to the inner diameter of the wheel. 26 inches is currently the mainstream size of mountain bikes.

There are also the most accessories on the market that fit it. At the same time, there are other wheel diameters, such as "29 inches" and "27 5 inches", the larger the wheel diameter, the better the passability of the road surface, but also the less flexible. Those fancy bikes are basically 12-inch BMX, and that's the same reason.

3. Brakes. Not only mountain bikes, but also other bikes should be sure to check the brakes. Currently, the mainstream of mountain bikes is disc brakes.

The way to check the disc brake is: first, see if there are signs of oil leakage in the position of the handle and clamp; The second is to press the left and right brakes, look at the mileage and ** when traveling, if the mileage is long and slow, it is a lack of fuel; Otherwise, it performs well.

4. The brand number of each part.

Keep in mind that no single bike brand can produce all the accessories for a bike. Newbies don't have a brand differentiatorship, but keep one thing in mind to reduce the likelihood of being scammed. That is, no brand will take its logo lightly.

On bicycles, the manufacturer's logo is stamped on its own parts and is not labeled. Those vehicles that are labeled on the parts must be paid attention to.

Categories: Lifestyle >> Shopping.

Problem description: As the title suggests, one of my classmates bought a car and it broke down every day.

How do I choose a bike? Mountain.

Analysis: It is very important to choose and ride a mountain bike correctly, and the following points should be noted:

First, when choosing to buy a mountain bike, you must first understand the main purpose of buying a mountain bike, if it is only used for walking or occasional travel, it is recommended to buy a mid-range mountain bike with about 15 speeds, because the higher the speed ratio, the greater the possibility of problems, and the mountain bike with more crotch has a lot of fiber benches on city streets. On the contrary, if you mainly want to have fun and fitness, and experience the boldness of mountain biking, you can consider buying a model with more than 18 speeds, so that you can fully experience the fun brought by the speed ratio.

Second, when purchasing a mountain bike, if it is a vehicle purchase, we must pay attention to whether the vehicle assembly is harmonious, whether the conversion of each gear of the transmission is smooth, whether the welding joints of each welding port are smooth, whether there is a sand hole, and whether the zero matching and destroying celery travel parts are complete. If you unpack and assemble in the shopping mall, it depends on the technology of the assembly workers, and the level of assembly has a great impact on the performance of the whole vehicle. If possible, skilled assemblers should be selected for on-site assembly.

Third, mountain bikes are actually mainly used for sports and fitness, and should not be used as a daily means of transportation, because the saddle of mountain bikes is smaller, stiff and high, while the handlebars are low, and the riding posture is low in front and high in the back. According to Mr. Zhang, the team doctor of the bicycle training team of the National Sports Commission, teenagers should not ride mountain bikes to and from class for a long time, otherwise it will affect the normal development of the spine, but if they go on a field trip or organize a small mountain cycling competition, mountain bikes should be the first choice.

Fourth, when riding a mountain bike, the transmission should be adjusted in a timely manner, generally to feel a little powerful under the feet when pedaling, if you feel empty, you should immediately adjust the gear to the high speed ratio; If you feel that the pedaling is heavy, you can adjust the gear to a low gear ratio. Remember not to push the bike too hard when changing the speed ratio, otherwise it is very easy to damage the tower teeth or chain. When you're first riding a mountain bike, slowly adjust the speed ratio of your new bike to your previous riding rhythm until you find the gear that works for you.

When mountain biking, pay attention to the surrounding trees, ditches and tourists. Generally, when rushing down a mountain, the speed can reach more than 65 kilometers per hour, and such a speed will have the same consequences whether it hits a tree or a person.

Cycling is great for the heart and lungs, builds leg strength, and doesn't damage the knee joints. Going to the wild for a ride not only exercises the body, but also visits the wild scenery, cultivates temperament, and can also exercise will and courage. As a result, according to the Washington Cycling Association, there are currently 14 million people who are enthusiastic about mountain biking.

In our country, there are also more and more teenagers and even adults who are buying mountain bikes.

Specific precautions are:

1. The transmission parts of the transmission parts, including the crankset, rear flight, chain, speed change, etc., should rotate flexibly, and there should be no off-chain, skip-chain and other phenomena when rotating, and the crank, crankset, rear fly, and chain can not be rubbed against any part. Bu Shoumu.

2. The gear shift device should be accurate and reliable in the range of variable speed.

3. Rotating parts: Each rotating part, including the frame head tube, bottom bracket, fork, crank sprocket, hub, pedal, etc., should rotate flexibly, without loosening and blocking. During the rotation of the crank, there should be enough clearance between the crank and the rear fork of the frame, and there should also be enough clearance between the wheels and the frame, as well as the brake pads.

4. The braking system must be flexible and reliable, and the installation of the front and rear brakes of the bicycle must be.