How to choose roller skates: put on your shoes.
Shoes can be divided into hard shell shoes, semi-soft shoes and fully soft shoes according to different shoes. General roller skates are mostly hard-shell shoes and semi-soft shoes. Hard-shell shoes and semi-soft shoes have their own advantages. Hard-shell shoes are composed of outer shell and inner sleeve, which have good support. Semi-soft shoes consist of leggings and inner boots. The toe cap is similar to casual shoes and more comfortable than hard-shell shoes. But for different grades of shoes, the hardness of shoes is not the only criterion to distinguish between comfort and support.
Leisure roller skates and FSK shoes emphasize comfort, and the shell is generally semi-soft shoes. Flat shoes, FSK shoes and extreme shoes are generally semi-soft shoes or hard-shell shoes with good support. FSK shoes and extreme shoes choose semi-soft shoes to ensure comfort, but the hardness of leggings is higher. Professional flat shoes are mostly hard-shell shoes. Roller skates and speed skates are special. Generally, shoes are made of fiberglass, which is relatively hard and has good support. The shape is close to semi-soft shoes, but the hardness is very high. Most of them have no inner boot design. Professional skates and speed skates also use carbon fiber as a material. In order to reduce the load and give full play to the ankle strength, the upper of speed skating shoes is relatively short.
knife rest
Tool rest can be divided into engineering plastic tool rest and aluminum alloy tool rest according to material, integrated engineering plastic tool rest, integrated aluminum alloy tool rest and split aluminum alloy tool rest according to structure, and integrated aluminum alloy tool rest can be divided into die casting type and pultrusion type according to molding process. And the engineering plastic tool rest, different brands of roller skates use different materials, and the violence resistance and stability are far from each other.
From the aspect of violence resistance of leisure roller skates, it is rare for the tool holder to burst or irrecoverable deformation, unless it is caused by man-made or accident, so you don't need to worry that the plastic tool holder is not as strong as the aluminum alloy tool holder.
In terms of stability, the integrated tool holder is more stable than the split tool holder. The stability of integral aluminum alloy handle is the best, followed by integral engineering plastic handle, and finally the split aluminum alloy handle. The split tool holder will be deformed in herringbone or parallelogram under the condition of bearing or pressing force, and will return to its original shape after unloading due to its toughness.
The structure of the tool rest also determines the performance of roller skates. The length of the tool holder is the distance from the center of the first shaft hole to the center of the last shaft hole. The longer the tool holder, the better the sliding stability, and the shorter the tool holder, the better the sliding flexibility. Generally, the tool rest of flat shoes will be shorter to increase flexibility, and roller skates with casual street brushing speed will choose a longer tool rest to increase stability. For beginners, the long tool holder is easier to use and can learn basic skills better.
bearing
Good bearings should be very smooth. When buying shoes, you can gently turn the wheel by hand, and the wheel should turn evenly. But idling time is not the only basis to distinguish the quality of bearings. The performance of bearings depends on their use in the best working environment. Speed sliding bearings need good continuity, FSK and limit bearings need good impact resistance. Some ordinary bearings will shorten the idling time because the grease is too thick.
A series of parameters of the bearing will be listed on the bearing cover, such as? 608ZZ ABEC-7？ Where 60 indicates that the circumference of the outer ring of the bearing is 60mm, 8 indicates that the diameter of the inner ring is 8mm, Z indicates that there are metal dust covers on both sides, ZZ indicates that there are metal dust covers on both sides, ABEC is the tolerance grade of seven ball bearings (grade ABEC is 1, 3, 5, 7), ILQ is the tolerance grade of six ball bearings (grade ILQ is 7, 9), and others. Generally, the higher the parameters behind the bearings of the same brand, the better the accuracy of the bearings, but the bearings of different brands and different tolerance standards cannot be compared horizontally.
wheel
Wheels are usually made of two materials, namely PVC (plastic) and PU (polyurethane). PVC wheels are cheaper, but their elasticity and wear resistance are poor. The way to test the elasticity is to gently shake the wheel and then throw it back up. To measure the elasticity of the wheel, the ratio of the rebound height to the highest point of throwing is generally above 30%, and the high elastic wheel is even close to 100%.
Most wheels are printed with wheel parameters, such as 80MM82A, the first 80MM is the diameter, and the second 82A is the hardness. The higher the hardness, the smaller the friction with the bottom surface, the better the continuity and wear resistance, but the grip is unstable, which is generally suitable for outdoor rough sites; The lower the hardness, the better the grip, but it is not wear-resistant, suitable for smoother venues. The choice of wheels can be based on the actual use and place of use. The size of the wheel is one of the main factors that determine the speed continuity of roller skates. Generally speaking, the better the continuity, the more labor-saving, which is why speed skating needs bigger wheels.
Roller skates are generally designed with flat wheels, that is, in the case of a positive edge, all wheels are attached to the ground at the same time, which helps to increase stability. Professional flat shoes generally adopt banana wheel design, that is, the middle wheel is attached to the ground, and the first and last wheels are separated from the bottom surface, so that the flexibility is higher when fancy on the flat ground. It is not recommended to use roller skates designed with banana wheels when practicing basics, brushing streets and speed skating. In this way, most of the force in the sliding process will be used to balance the center of gravity, and the acceleration is naturally not as good as the flat wheel. Moreover, in the relatively high-speed sliding, the roller skates designed by banana wheels will swing slightly from side to side, which is very dangerous when sliding.
Calculate by code
Generally, the size of roller skates is half the size of the shoes you wear on weekdays, and you can also buy them according to the actual length. Of course, it is best to try on shoes. Under normal circumstances, you must try your feet, and it is advisable not to shake your feet left and right inside. The thickness and comfort of the inner sleeve of roller skates are the key to choosing shoes. The thicker the inner sleeve, the softer the tongue. Only suitable shoes with feet can protect ankles and make sports more flexible.
Upgradeable space
The upgradeable space of roller skates is also a point to be considered comprehensively when buying shoes. The tool rest, bearing and shoe wheel with upgradeable space can be replaced. In this way, if you feel that your old roller skates are not satisfactory in performance and speed, you don't have to throw them away, so you can upgrade them according to your own preferences. You can change a more comfortable or comfortable inner boot, change a tool rest that is more suitable for your own needs, make it more comfortable, change finer bearings, bigger and better wheels.
How do novices choose roller skates? Beginners first suggest buying non-professional shoes, followed by buying professional shoes with good comprehensive performance, but pay attention to basic exercises. If economic conditions permit, you have a clear idea about your level or which project you like to play, and you can buy a mid-range or high-end professional-grade sneaker in one step.
Casual shoes or FSK shoes and even extreme shoes are also suitable for beginners. Choosing semi-soft shoes or hard-shell shoes with good support, leggings and wheelset stability is the premise. Generally speaking, novices should also practice basic movements such as sliding, turning and braking on the road. Non-professional roller skates can meet these requirements and the price is relatively cheap. However, when the level is improved and you start to learn various movements, you must buy professional roller skates, because those difficult movements are not affordable for ordinary roller skates. Good roller skates concentrate their weight on the upper, which can ensure the comfort of roller skates, and the tool rest is as thin as possible while ensuring firmness.
Flat shoes are not recommended for beginners because they are elastic, or flat wheels can be used instead of flat shoes.
Classification and difference of roller skates;
It is the unprofessional nature that we usually play. Leisure roller skates are also called leisure shoes. As the name implies, they don't abuse their feet and are comfortable to wear. However, there are some unsatisfactory aspects in action, sensitivity and foot binding. Generally, the tool rest is made of aluminum and the shoe shell is made of cloth. The most important thing is that the size is adjustable, there are many wheels shining, appearing in supermarkets instead of clubs.
Casual shoes are not demanding; Generally can brush the street; Better protection for feet; The price is cheaper.
FSK roller skates:
Usually we understand that freestyle roller skating requires a certain level of technology. FSK players may be experts in flat flower limit or street painting for many years.
Ordinary roller skates:
The abbreviation of plane fancy is generally around the pile. Generally speaking, it is just a pile of paper cups and the like arranged in a row, and the people watching it are dizzy and enjoying themselves. Its tool rest is generally steel, and the shoe shell is generally hard shell or semi-soft, not cloth.
Banana wheels are generally used to play with flat flowers. Someone will ask? What is a banana wheel? . In fact, the two wheels in the middle are big and the two wheels on the side are small, so that when the four wheels touch the ground, they become two wheels. At the same time, landing is called a banana because it is shaped like a banana. The configuration of flat shoes is 72 76 76 72/76 80 76 80. This unit millimeter design greatly increases the flexibility, but the corresponding stability at high speed is also greatly reduced. If you can't have advantages, you will have disadvantages, so it is not recommended for beginners to buy flat shoes.
Extreme roller skates:
Divided into U pool and wild street, U pool is similar to swimming pool, wild street is more leisure, and most of it seems to be the scene of sliding railings. (called c pole)
Extreme shoes are relatively thick, and the protection of ankles and other parts is quite sufficient.
Shelves are generally made of plastic with grooves in the middle, which is convenient for using C-shaped rods. The wheels are small. Casual shoes generally use 80MM wheels, and the extreme wheels are only 57 mm The small wheels are for the convenience of the extreme players to land stably after jumping.
Speed skating shoes:
It is the speed skating that you can often see on TV. Speed skating is about speed, and competition is about speed. Although there are international competitions for the above-mentioned flush limits, only international competitions for speed skating are recognized. National athletes only have the selection and training of speed skating events.
Speed skating shoes are also special.
There are 5 rounds and 4 rounds;
The 5-wheel configuration is generally 84MM? 5/90MM？ 5;
The four-wheel configuration is generally 100MM? 4/ 100 84 100 100;
In addition, in order to ensure the flexible movement of the ankle, the speed skating shoes are designed without cuffs, which can easily cause sprains and strains if used improperly;
Novices should try not to try speed skating shoes.
Several tips for scientific maintenance of roller skates;
1, don't pass on the grass and mud, because doing so will make the gravel wear the wheels of roller skates, and the sand will run into the bearings and need to be cleaned frequently.
2. Try not to play roller skating in rainy days, because water will rust the bearing.
3. If the bearing rusts, be sure to buy a small bottle of grease (engine oil is also acceptable). First, thoroughly clean the inside and outside of the bearing with gasoline, and then apply grease to the balls inside the bearing, without applying too much, just apply a layer on the balls.
If the bearing often slides, it is recommended to maintain it once every two weeks. If it does not slide frequently, it is recommended to maintain it once a month.
If the bearing is noisy, but it does not affect the speed, it is not necessary to clean it. Because this situation may be caused by the noise caused by the structural change of the bearing itself due to excessive sliding or excessive vibration, cleaning the bearing at this time may easily lead to a significant reduction or even stop of the bearing speed. If you want to reduce noise, you can apply some grease appropriately.
Maintenance of wheels
Wheels will gradually wear with the increase of service time, so the most important thing in the maintenance of roller shoes is to check the wheels. If you slip frequently, you'd better check the wheels once a week to see the degree of wear. If one side of the wheel is badly worn, it is necessary to change the position as soon as possible, otherwise the wheel may be scrapped because of falling edges.
Wheel adjustment
Each pair of shoes has different methods to adjust the wheels, because everyone's sliding state and sliding mode are different, so the degree of wheel wear and adjustment methods are different. Under normal circumstances, the wheel adjustment method of children's shoes is to exchange the wheels of the left and right feet and rotate the inner and outer sides of the wheels at the same time. That is to say, the outside of the four wheels of the left foot is placed on the inside of the right foot, and the outside of the four wheels of the right foot is placed on the inside of the left foot.
But if you are a friend who plays with flat shoes, because the shoes you wear are flat shoes, what are the wheels? Banana wheel? , so it is more troublesome to adjust. In general, please refer to the following steps:
1. First number the wheels and mark both sides of the wheels. (Suppose that the four wheels are 1, 2, 3, 4 and number from toe to heel)
2. Turn the 1 number of the left foot into the No.4 wheel of the right foot, and adjust (flip) the inside and outside of the wheel. According to this rule, the left foot wheel No.2 and the right foot wheel No.3 are interchanged, then the left foot wheel No.3 and the right foot wheel No.2 are interchanged, and finally the left foot wheel No.4 and the right foot wheel 1 are interchanged. It is particularly important to note that the action of changing wheels only needs to be done once every half a month to once a month. If there is obvious wear on one side of the wheel, the wheel should be adjusted immediately, otherwise it will be scrapped if left unchecked.
Cleaning of protective devices
Roller skating is a sport. If you leave a sweaty protective gear after exercise, it will give off a terrible smell. In addition to the safety helmet, hand guards, elbow pads and other protective devices are not only easy to absorb sweat, but also easy to get dirty when falling, so they will soon become smelly and dirty, so they must be cleaned regularly.
Cleaning steps of lining
Step 1: put the inner container into the washing bucket and add warm water.
Step 2: Add special detergent for soaking and no washing.
Step 3: soak for one night and take it out in the shade the next day.
Remember to use warm water. If immersed in cold water or hot water, the gasket will be damaged. )
Replace brake pads.
Some children's shoes' heel brakes will soon wear out if they are used frequently. Once the wear is serious, it is easy to lose balance when stepping on the brakes, and it may also lead to poor braking. Therefore, the brake pads must be replaced immediately after grinding.