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What are the standard specifications of tennis rackets?
The standard specifications of tennis rackets are as follows

Racket face (square inch) 100?

Tennis racket length (inches) Adult racket standard length: 27 inches?

Weight (grams) 300?

Balance (mm) 320?

Hardness (Rockwell hardness) 67?

Swing 324?

Beat thickness (mm) 26?

Material 100% high density carbon fiber?

Thread type 16x 19?

Minimum thread pound is 55?

Maximum thread pound 62?

Extended data

Tennis racket related standards

"AMSSEFSCL" standard is very popular in the world. The following are the nine elements of the AMSSEFSCL standard:

A-constant weight (weight)

A racket that is too heavy will make the player move slowly when swinging, and a racket that is too light is not easy to cope with a strong incoming ball and is easy to retake.

Normal selection: Generally speaking, the application range of young men is 320—330g, middle-aged and elderly women are suitable for rackets between 300—320g, and the application range of young women is 280—300g.

M measurement (handle size)

Just like weight, the size of the grip should make you feel comfortable.

Normal selection: 4 3/8 is suitable for ordinary male players, and 4 1/2 can be used as a bigger one if the ability allows; Female, 4 1/4—4 3/8.

S skin (holding skin)

The outer skin on the grip is the part of the racket that contacts the human body.

When the skin is bad, you can't grasp the racket well. In this case, even if you have the best racket and the best skills, you can't play.

Normal selection: the skin of the grip needs attention and frequent replacement, which is a good way to keep the skin of the grip in the best condition.

S- dessert (sweet area of noodles)

Hit the ball away from the center of the racket, which is called sweet spot in English (translated as "dessert" or "sweet area" in Chinese).

Normal choice: a large racket is easy to learn and can hit the ball slightly off the center. The disadvantage is that the speed is not enough and the control is not good. Suitable for women, beginners and the elderly, and it is appropriate to use11115 square inch.

Small racket face is suitable for middle and senior players and young players. It is characterized by fast ball speed and good point control, but small sweet area.

Electron balance (equilibrium point)

The balance point is related to the weight of the racket face, and its central topic is "heavy head" or "light head", which is also a topic suitable for everyone.

Normal selection: the head weight is suitable for long-range shooting, and the bottom line draws the ball; Logger Vick is suitable for tennis volley, which is commonly used by two-handed players.

F-shape

The shape of each racket face has its own unique design concept, and the location of the sweet area is different with different shapes.

Generally speaking, the shape of the racket face is mainly oval and oval, the sweet area of the oval racket face is in the center of the racket face, and the sweet area of the oval racket face is in the center behind the racket face, which is close to shaking hands.

Those who are good at steady shooting can choose the former, and vice versa.

Normal selection: This can be seen from the introduction of the beat or label.

C structure (structure)

From the structure of tennis racket, the whole racket will have different hardness.

Of course, people with big swing and strong power are suitable for people with low hardness (if people with big swing and strong power use a racket with high hardness, the handle, racket mesh and racket frame of the racket are easy to be damaged).

Normal selection: it will also be displayed in the label, and most of them are represented by numbers. The larger the number, the smaller the hardness.

S-the number of pounds of the racket.

The higher the number of pounds of the racket, the lower the elasticity, but the player with fast swing speed can get better ball control effect. A low number of pounds will produce a spring bed effect, increase the rebound force and reduce the relative possession of the ball.

Normal choice: The most commonly used weight of tennis rackets is between 55 and 60 pounds, and professional players often wear them ("wearing" means that professional players require manufacturers to wear thicker net wires when producing rackets-because the net wires are thicker, the weight is larger) to about 70 pounds.

L- linearity (line selection)

The mainstream of tennis thread is nylon thread, which can be produced in large quantities because it is not afraid of moisture and wear-resistant, and its price is reasonable and popular. However, nylon thread also has shortcomings because it is easy to relax and the number of pounds changes.

Normal choice: there are too few durable and easy-to-hit lines, because the thicker the line, the more durable it is, and the thinner the line, the better it is. Therefore, people who will be disconnected in three or two days had better wear thick thread with a diameter of 1.35mm to 1.45mm, but the thick thread doesn't feel very good. The thin thread is generally between 1.20mm and 1.30mm, with keen ball cutting and good elasticity.

Reference source Baidu Encyclopedia? tennis racket