First of all, Pei Lin Guhua.

Pei Lin: transliteration of English bearing; Flower drum: another name for bicycle axle.

Bicycle axles are divided into two types: Pei Lin and Zhudang. Pei Lin has always been called transliteration because it comes from foreign bicycle manufacturing technology.

Compared with the bead gear, Peilin has the advantages of good sliding and convenient maintenance, but it is difficult to control when turning, especially when turning at high speed, it is easy to lock up or the turning radius is too large.

Compared with Peilin, the bamboo flower drum is at a disadvantage in sliding, but its advantage lies in its maneuverability when turning.

Several major bicycle parts manufacturers in the world have different opinions. Japan Shimano Company pays attention to the application of beaded flower drums, and its XTR series of high-end flower drums still adopt beaded structure, which improves the sliding and turning performance a lot.

Several bicycle accessories manufacturers in Taiwan Province Province, the world bicycle distribution center, such as JOY and Kun Teng, all attach importance to the development and application of Pei Lin ancient paintings, and have achieved good market response and enjoyed a high reputation in the industry.

Second, about the difference between 4 forests and 2 forests.

Ordinary flower drums are scattered beads, such as most of Shimano's products, civilian-grade flower drums. Peilin Flower Drum is a bearing drum, and the standard bearing is installed in the drum shell, which makes the rotation smoother and quieter, without adjustment and maintenance, and has higher waterproof and dustproof performance. The front drum of Peilin Flower Drum is generally double bearing type, and the rear drum is divided into two types: double bearing and four bearing, and the four bearing type has higher strength. The price of bearing drums ranges from more than 200 pairs to more than 3000 pairs, but the cheapest ones on the market are more than 200 pairs. Jiuyu in Taiwan Province Province is a good choice. 4 Pei Lin, 2 Pei Lin, mainly Pei Lin's back flower drum structure. The flower drums in front are basically from the forest of two steles.

The differences between forests 4 and 2 are as follows:

A. Whether there are four or two back flower drums, they are actually used to carry two frames. The other two forests in the flower drum are mainly used to support the operation of the flower drum, so it can be said that they basically do not play a bearing role. In this sense, the intensity of flower drum in 4 cultural forests is basically the same as that in 2 cultural forests. However, there are some structural differences between the four flower drums and the two flower drums, which are mainly reflected in the warp position: four flower drums, two of which are assembled directly in the tower foundation, and the tower foundation can usually be made of aluminum alloy; Peilin Flower Drum is composed of axle bowls, axle blocks and balls in the tower foundation, so the tower foundation is made of steel. In this way, from the overall weight of the rear flower drum, although the four flower drums have two more support components, the actual overall weight is lighter than that of the two flower drums because aluminum alloy tower seats can be used. In addition, one advantage of Pei Lin Flower Drum is that it can be repaired. Even if Pei Lin is damaged in use, it can be repaired as new by replacing a set of corresponding assembled Pei Lin. Jiuyu Pei Lin Flower Drum adopts the industrial standard Pei Lin, and it is easy to find maintenance parts in the market. However, once the three ball-shaped flower drums such as beads, teeth and bowls are excessively worn, it is not easy to find suitable repair parts, which may lead to the scrapping of the whole flower drum. . . Therefore, four flower drums are easier to repair than two flower drums in this respect.

B. Because the 2-ring flower drum is built in the culture base, the flywheel will swing to a certain extent after being installed in the 2-ring flower drum due to the clearance control and other reasons, while the 4-ring flower drum is easy to control in this respect. Generally speaking, as far as bearing strength is concerned, there is no difference between 4 vertical back flower drums and 2 vertical back flower drums. The ride comfort of the two is basically the same; As far as repairability is concerned, the back flower drum of forest type 4 is better than that of forest type 2; As far as the weight of flower drum is concerned, 4- culture type is better than 2- culture type. So generally speaking, the back flower drum with 4 cultural styles is higher in grade and more expensive than that with 2 cultural styles.

C. Finally, add a few words: Jiuyu Peilin Flower Drum is a mid-range product in sports bicycle flower drum, and many riders regard it as an upgrade, mainly because its ride comfort is often better than the original flower drum (such as SP8) and its repairability is good. As a maintenance part, the industrial standard Peilin is easily available in the market, with relatively stable performance and more confidence in users. Some high-end finished bicycle wheel sets also adopt the flower drum with assembled Perrin structure. However, according to the special requirements of high-performance use of bicycle wheel sets, special perrin is often used, which has better performance but poor repairability. In addition, there is no absolute difference between the thousand and nine thousand flower drums and the ball flower drums. Mainly depends on the level and quality. The high-end ball flower drum has excellent performance and is as durable as Peilin flower drum. . . Today, all the flower drums of Shimano still adopt ball-shaped structure, including high-end strength training products and top competition products.

What do you mean how loud the flower drum is?

The number of tones ~ is the number of tones emitted by the rotation of the flower drum tower foundation ~ ~ ~

Generally speaking, the more laps, the greater the density of the tower foundation, and the smaller the rotation angle of the tower foundation when stressed.

So the less energy is wasted when exerting force ~

Excellent flower drum, loud and noisy.

Of course, this is normal ~ ~

The number of rings and the noise can't fully reflect the quality of the flower drum ~ ~

Because different brands adopt different technologies and structures, they are also high-end flower drums, and the number of rings is also different:

For example, KING, the most popular flower drum in the world, has only 72 rings ~ ~, while chosen 120~~ in Taiwan Province Province has a ring as high as 120~~

(the level of the selected person is not comparable to that of the king ~ ~ ~)

Except for the king ~ ~ the number of rings in the world and many top flower drums are not high ~ ~

For example, XTR is the traditional 18 ring ~ ~ All ~~MAVIC wheelsets are 24 rings ~ ~

DT is also a 24-ring ~ wait ~ ~ ~

Generally speaking, a flower drum rings a lot ~ loudly, which means it is a high-end flower drum ~ ~

If you hear someone's car making a huge roar of the tower base, his flower drum must be a good thing.

It's not necessarily the low-end flower drum that makes less noise ~ ~ It depends on the brand and model ~ ~

There are many top flower drums in the world ~ ~

The most extensive competition ~ XTR from Shimano

DT 240, the most used in international competitions and teams.

The burnt goods in the burnt goods cost 5000 yuan a pair of kings.

Industry 9 is as expensive as a king.

Rare ~ TUNE, a seiko product from Germany

The hope of English classics can also be regarded as ~ ~ ~

Of course ~ ~ Not all brands have separate flower drums ~ ~

The top finished wheelsets are the most used in the competition.