The most popular winter sport is cross-country skiing. But in order for outdoor activities to bring only positive emotions, you need to take care of sports equipment. The article will focus on ski bindings. NNN and SNS are state-of-the-art fastening systems, and the debate over which one is better has been going on among professional and amateur athletes for a long time.
NNN
The Norwegian company Rottofella has developed a special system for attaching boots to skis - NNN. The originality consists in the presence of two rubber flexors that connect the boot to the binding, and two longitudinal guides that do not allow the boots to move to the sides. The toe of the boot rests against these springy cuffs, and after a push they return the leg to a horizontal position.
The NIS design used in the NNN bindings allows the binding to be mounted on a platform built into the skis. This is very convenient as the binding does not need to be screwed into the ski and can be moved to adjust the position of the boot in relation to the center of gravity. Many skiers use this feature to customize their skis for different snow conditions. This system also allows the athlete to place their binding.
SNS
The French company Salomon introduced its fastening system - SNS. The difference of this design lies in the presence of a central rubber flexor with one against which the boot rests. The special sole of the shoe allows the athlete to control the ski and ride in any style.
The installation of the fastener does not provide for a special platform on skis, like the NNN binding, but original boots are required, suitable only for the SNS design. The usual SNS mount has only one brace in front of the sole of the boot, but there is also a modification of the SNS Pilot, which uses two metal axles that are fixed in two different grooves spaced 2.5 cm apart. This allows you to limit the lift of the foot into the air and thereby increase control over the skis.
System differences
In general, the differences between NNN and SNS mounts are minor and will be invisible to the average hobbyist, but there are nuances that a professional will pay attention to. For example, many people praise the SNS Pilot bindings for the double engagement of the boots on the skis, which improves maneuverability, but at the same time, in not very cold weather, the snow gets packed under the second bracket and is compressed into an ice lump that prevents the boot from being placed on the binding normally. It also happens to unhook the second bracket when pushing. But in cold weather, these mounts work great.
Many pros appreciate the NNN binding because thanks to the platform on the ski and the NIS construction under the binding, the boot rises and the leg becomes longer. This increases the force of the push by lengthening the lever. At the same time, this effect reduces the stability of the skier, which is excluded in SNS bindings. What to choose: NNN or SNS binding, it is up to the skier to decide which boots and which bindings are more convenient for him to ride. This is an individual approach, and there is no definite answer.
Mounting installation
After choosing and buying a mount, you need to install it on your skis. You need to do this in the following order:
- The center of gravity of the skis is determined. This is done as follows: the ski is placed flat on the edge of the ruler and shifted until it balances, like weights (parallel to the floor). If the mount is heavy, then you need to find the center of gravity by attaching the mount to the skis and shift until the balance line coincides with the fixing groove of the boot.
- Hole drilling locations are marked. For this purpose, there are paper templates included with the mount. If there is no template at hand, you can mark with an awl by attaching mounts to the skis, according to the center of gravity.
- Holes are drilled to a depth of 10 mm. A drill is pre-selected: for NNN - diameter 3.4 mm; for SNS - 3.6 mm. Drilling is done carefully, slightly pressing on the drill so as not to go through the ski. It is advisable to put a limiter on the drill. Then sawdust is blown out, and the holes are filled with glue for a more secure fixation.
- The structure is being assembled. For this, fasteners are applied according to the holes and screwed. After that, it is required to dry the skis for 10 hours before use.
Everything is ready, now you can go for a ride. Apparently, there is nothing difficult in choosing and installing mounts.
The simplest ski binding is the toe strap. But such a fastening is very unreliable - it is no coincidence that the boys always attach elastic bands to the strap or simply tie it with a string.
A belt mount equipped with a heel strap has the advantage that it allows you to use any shoes for skiing, and especially felt boots.
More advanced is the tourist mount with side metal braces and an adjustable heel strap. It can be used on recreational skis and does not require special ski boots.
Rigid welt fastening is much more convenient. A special ski boot is put on spikes and pressed against the welt with a bow. Such fastenings quickly and reliably connect the boot to the ski, do not constrain the heel, and at the same time provide good ski control. They are put on sports and cross-country and walking skis.
For skiing, bindings are needed that tightly attach the boot to the ski. Skiers usually tie their boots tightly with straps. A beginner skier should not do this.
Ski bindings consist, as a rule, of metal brackets adjustable in width, equipped with welt holders. Recently, instead of fixed brackets, movable toe welt holders have been used, which automatically release the leg when it falls.
Rice. 5. Ski bindings (from top to bottom) tourist, welt, ski bindings on springs and straps
The boot, fixed in the toe with a welt holder, is tightly fastened to the ski with a cable pulled with the help of a toe lock - a “frog”. The necessary tension is created by a spring located in the toe of the cable or on the "frog" itself. It is not recommended to use a cable with a heel spring - it does not hold the foot well and spoils the boots. In order for the cable to better press the boot to the cargo area, it is passed through hooks installed on the side surfaces of the ski. A pair of hooks near the front of the heel allow the boot to be securely attached for turning. A pair of hooks located at the base of the big toe provide heel lift, which is important during long skiing on flat ground. If necessary, the cable is passed through the front or rear hooks.
Recently, ski bindings have become widespread, having only a toe welt holder and a heel latch. When dropped, they automatically open.
For young children, bindings with metal brackets placed on the soles of old sandals are best suited. The entire front part of the sandals is cut off and only the sole and heel with straps are left. Any children's shoes are included in such bindings. Crampons equipped with a toe strap and a sandal heel strap securely and securely hold the foot and allow good control of the ski.
Rice. 6. Child ski bindings
Instead of sandals, you can use material such as linoleum, cutting off a strip from it equal to the width of the ski and the length of children's shoes (with a margin), and sewing on the heel and strap. A boot with a mount is put on a ski. Brackets are installed between the boot and a strip of linoleum, holes for the screws are marked, then, having removed the boot, the brackets are strengthened with screws.
For older children, you can use school mounts that are sold in stores. If a child wears shoes of size 33 and above, then adult bindings are already suitable for him.
Now you need to solve a difficult question: where to put the mounts?
First of all, you need to find the center of gravity of the ski. To do this, the ski is placed on the edge of a ruler or pencil with a sliding surface. The place where it will take the position of balance will be its center of gravity. It is marked with a cross line.
The mount should be installed so that the ends of the toes are shifted from the center of gravity to the heel of the skis by a distance of 1-1.5 cm.
The simplest rule, applicable to almost all skis, is that the toe of the boot should be on the line of the center of gravity. Offset is allowed only to the back of the ski. This makes it easier to bring the ski into the turn. But you should not get carried away with this, otherwise the ski socks will greatly pull the foot and tire the legs.
Rice. 7. Determining the center of gravity of the ski 
Rice. 8. Marking the sole of the boot for welt fastening
Before installing the welt mount along the ski cargo area, it is necessary to draw a center line. The same line is drawn on the boot. It will pass between the first two toes to the middle of the heel, where, just like on the toe, light notes are made. Then, staples are put on the boot, from which the bow was previously removed, so that the front welt coincides with the edge of the staple. If the staples are one-piece, they are pressed against the boot. A boot with staples is placed on the ski. Having aligned their middle lines and accurately marking the position of the staples on the ski, the boot is removed, and staples are placed on the marks just obtained. Holes for screws are marked through the holes in the brackets on the ski. Then a hole for the screw is made with a drill. In order not to drill through the ski through, the estimated depth of the hole is marked on the drill with an insulating tape. The diameter of the hole should be less than the diameter of the screw by about a millimeter. Then the screws are lubricated with ski ointment and, at first, carefully, and then with full force, are wrapped to failure. They put a bow on the staples; insert a shoe. Moving forward from failure, it is centered, making sure that the side welt evenly touches the walls of the brackets. Closing the bow so that it completely touches the welt, they press hard on it.
After doing this operation several times, the boot is removed. On the soles there are dents from the spikes. According to these dents, holes are made in the sole with a drill or a hot nail, which strictly correspond to the diameter of the spikes and in no case pass through. Putting the boot on the spikes and closing the bow, put a comb on the end of its middle division and mark the holes for the screws on the ski, with which it is fixed on the ski. Having attached the comb, the boot is snapped into place and an elastic band is nailed under its heel. The elastic should be the size of the heel. It is recommended to nail it around the entire perimeter so that it bubbles a little - then snow will not accumulate under the heel.
The second ski is marked on the first. The rest of the operations are exactly the same.
If you have to install the mount for the first time, then first you need to practice on a board similar in size to the ski's cargo area. It is necessary to do everything that was described earlier, you should not just drill holes in the boot.
When installing bindings on alpine skis, the central plate of the bracket is placed so that its front edge coincides with the line of the center of gravity or is shifted 1-2 cm back. Holes are marked on the ski and, having placed side cheeks with a welt holder, they are fixed on the plate, adjusting the position along the boot. The boot is placed on the ski so that its toe and back are exactly on the axis. Having strengthened the cheeks, they insert the boot into the bracket and put a cable on its heel. The cable should be fixed on the middle divisions of the front latch, called the “frog”, and the “frog” itself, in a half-open position, is installed on the ski, in front of the boot. Having chosen the slack of the cable, they mark the installation site of the "frog" at first only on one or two screws. Having strengthened the “frog” with these screws, they close it. On the side surfaces of the ski, places for hooks are marked. They should be deployed along the cable. By placing hooks and nailing or gluing an elastic band under the heel of the boot, the “frog” is snapped into place. If the cable passing through the rear hooks holds the boot tightly and allows you to easily close the “frog”, the installation of the bindings can be considered finished. It is only necessary to strengthen the "frog" with additional screws. If the adjustment of the cable does not allow you to securely attach the boot and that's it possible options the tension is exhausted, the “frog” is rearranged to a new place.
A ski binding with a front automatic mount is placed on the skis so that the boot rests on the center of gravity of the ski or is shifted 1-2 cm back. The rest of the mounting procedure remains the same.
For the amateur skier best mount- spring, with automatic head. This type of binding allows you to quickly remove and put on skis and provides safety, especially if the "frog" has a device that opens the binding when falling forward.
Many hobbyists also use strap attachments with a rotating heel and an automatic crown. This fastening is safe and holds the ankle joint well. However, if necessary, it is often inconvenient to take off and put on skis, since it takes a lot of time to tighten the straps.
When installing fastenings with a rotating heel on skis, make sure that when fastening the “frog” heel spring, the boot is pressed firmly enough to the head. Otherwise, it will always jump out of the mount. When winding, the belt is led through the heel to the ring opposite from the place where the belt is fastened. From there, they are directed back, they wrap around the Achilles tendon in a helical manner and wrap it around the ankle, and then again lead back through the Achilles tendon to the ring and the place where the belt is fastened. From here, through the rise, the belt is directed to the clasp, after which the heel spring is closed.
When rearranging the mounts, old holes in the ski should be sealed with wooden plugs.
When installing the mount on metal or plastic skis, special screws with self-tapping threads are used. If there are no such screws, threads are cut in the holes of the skis with a tap and ordinary screws for metal are used.
Ski poles are selected quite simply - their length should reach the armpits. This rule is suitable for all types of skis. For walks it is recommended to use light reed sticks. For skiers, duralumin or steel poles with a conical or spindle-shaped profile are better suited. They must have securely reinforced rings and comfortable leather hand loops. The pins of the sticks should be sharp enough.
Rice. 9. Ski poles
Installing ski bindings is getting easier as technology advances. Fischer, Rossignol, Madshus, Peltonen have long switched to screwless binding systems, and Salomon and Atomic are making skis with pre-drilled holes. However, skis that need to be drilled are still on sale. Regardless of the system, it is important to know how to install bindings correctly and how to combine bindings and skis of different systems - this will be discussed in our article.
The key points for installing bindings are the correspondence between the longitudinal axis of the ski and the transverse balance line. On skis without a platform, it can be found by placing the ski on the ruler. On the NIS and IFP platforms, the balance position is indicated by the number 0, and by the numbers -1, +1, -2, etc. the displacement of the mount by 0.5 cm forward and backward from the balance point is indicated. Moving the bindings forward gives more stability in skating and improves grip in classic. Shift back - improves glide, but worsens grip and stability in the box. This is the advantage of skis with a platform - the ability to move the bindings and find the optimal position for yourself.
How to install NIS mounts
Video instruction from Madshus.
How to install Turnamic mounts on the ifp platform
How to install SNS, NNN and Prolink bindings on cross country skis
The instruction is suitable for all fasteners mounted on screws.
To install the mounts you will need:
- screwdriver
- 3.6 mm drill bit or special drill bit for installing depth stop mounts
- Ruler and pencil
- Wood glue (PVA)
- Screwdriver PH3 or PZ3
- A jig or a template for installing fasteners is not necessary, but it is more convenient with it. There are different conductors for SNS and Prolink (Salomon, Atomic) and NNN (Rottefella)!
Mounting Instructions:
- Find the balance line of the ski. To do this, you can put the ski on the ruler. Salomon recommends moving the balance line 1 cm back to install the bindings, so draw the line according to the recommendation. Often on skis from one pair, the balance line diverges by 3-5 mm, so you need to find an average balance. To do this, lay the skis side by side parallel to each other and draw a common line of balance in the middle position between the balances of the skis.
- If there is a special jig for installing mounts, then install it on the skis so that the balance lines match and drill the necessary holes. If there is no conductor, attach collected and closed fastening to the ski, mark the drilling points. The line on the skis must match the place where the axle of the boot is attached. Attention! Holes are drilled to a depth of 15 mm, in children's skis - 9 mm. On a drill without a stop, put a mark so as not to drill through the ski.
- After drilling, clean the holes from dust, drop a drop of wood glue (PVA) into each and screw the fasteners. Joiner's glue will fill microcracks from screwing in screws and will not allow moisture to get inside the ski. Tighten the screws at low speeds of the screwdriver and reach with your hand so as not to turn the screws in the ski.
SNS Pilot mount installation video
How to install screw fixings on NIS and IFP platforms
To install screw fasteners on NIS and IFP platforms, there are special plates that level the platform.
The adapter for the NIS platform is installed after marking and drilling. Holes fit SNS mounts.
The IFP adapter is installed before the ski is drilled.
Installation Instructions for Salomon and Atomic mounts
Installing SNS Pilot Equip Mounts
The first step of breaking off the extra length of the heel is needed only for a small foot size. We recommend leaving the heel on the skis, it may come in handy in the future.
Installing the SNS Pilot Sport and Combi mounts
Installing SNS Propulse and Prolink
Mounting of the Propulse and Prolink mounts is the same.
Installing SNS Propulse and Prolink
Video of replacing Propulse mounts with Prolink
Installing SNS Profil Equipe and Profil Auto mounts
How to install the NIS platform with screws
The principle of installing a platform on screws is similar to installing fasteners - marking, drilling, carpentry glue, installation. The video shows how to change the SNS mounts to the old NIS platform with sealing the extra holes.
Now, for the convenience of switching from SNS to NIS, there is a special platform for sale, under which you do not need to re-drill holes. We recommend the same platform for installation on new skis, if necessary. It has more binding positions and requires fewer holes in the skis. This is what it looks like old platform sample for 8 screws, and so - new model platform.
Skiing is a favorite form of winter recreation. Even an inveterate lover of a hot summer will not refuse to breathe fresh air in the snowy forest. What can we say about those who cannot imagine their life without skis!
It should be noted that at present skiing in our country is actively developing, and the stores offer the widest range of equipment for its different types.
Someone prefers cross-country skiing, and some, on the contrary, like leisurely walks. There are those for whom the flat terrain seems boring and they ride from the mountains.
Mention should also be made of tourists making winter skiing trips.
All these activities require different types skis, and the higher the level of the athlete, the more stringent his requirements for equipment. The smallest nuances are taken into account, which beginners and amateurs may not even suspect.
In the existing variety of skis and related sports, everyone can choose the most suitable one for themselves, and ordinary cross-country skiing will surely win the palm.
Still, fans of skiing need to look for places where you can ride, and amateur ski tourism is a pleasure for everyone. But cross-country skiers can be used in the nearest park or forest, and do it at least every weekend. Especially gambling can even take part in some local competitions!
So, in order to diversify your winter leisure, it is enough to buy the necessary clothes and equipment: skis, poles and bindings. Here it is worth dwelling on them in more detail.
Bindings are a very important element of ski construction. They transmit forces from the foot to the ski, set the direction of sliding.
The older generation probably remembers the models of their grandfather's model: a belt clamp was attached to the ski, which fixed the leg with an elastic band at the back. The only plus of such “inventions” is that they could be worn on any shoes, even on felt boots.
And if we compare the described samples with modern ones, then the importance of the role of the mounts will be quite obvious: they provide comfort and stability in any course.
Nordic Norm 75mm, or the so-called welt. This is an outdated model that is gradually falling into disuse. Connoisseurs of such antiques and an extremely low price prevent it from finally saying goodbye to it.
The NNN system from Roteffella came later and has two longitudinal guides that stabilize the boot. In terms of functionality, it is in no way inferior to the previous version.
SNS system from Salomon, with one longitudinal guide. This is the modern standard for fastenings of a very high level. The soles of the boots for such bindings allow the foot to control the ski in any course.
The last two systems are now the most in demand, but there are no obvious advantages or disadvantages compared to each other, so you can choose any.
At a price they will cost more than NN75, but they are much more convenient and practical, and you can save money on installing these mounts.
- Skis and bindings;
- Markup template;
- Screwdriver with a blunt cross bit and drill;
- Ruler;
- Marker;
- PVA glue.
- Awl;
For all types of bindings, you first need to find the center of gravity of the skis. On some models, the manufacturer has already marked this place, but it is usually advised not to trust the factory branding.
Such balancing is necessary for a normal comfortable ride, when the ski does not “outweigh” in any direction. Finding the center of gravity is very simple.
It is necessary to install the ski on the edge, for example, of a ruler, and move along it until the “scales” freeze parallel to the floor. The ruler in this case will indicate the center of gravity, which will need to be marked with a marker.
So, the desired point is found.
If it is necessary to install Nordic Norm 75, then two screws of the fastening bracket must be located on the marked line. In other words, it is necessary to place the device so that the edge of the big toe is on the line of balance.
An important step is marking the holes. For him, the ideal option would be to use a special conductor, which allows you to accurately find the position of the fasteners. If there is no such conductor, then a paper template, which is usually completed with fasteners, is also suitable.
In the case when it is not there, you will have to mark the ski with an awl through the holes in the mount attached to it. By the way, since the mount consists of elements that move relative to each other, it should be used for marking in assembled form, so that later there is no mismatch in size.
Check for self-control. A drilled ski cannot be restored back, so an extra check will not hurt. Having measured the distance between the holes on the mount, you need to compare them with similar parameters on the finished layout.
Drilling holes according to the marks made. Usually, the instructions indicate how deep the screws need to be drilled, and what length and diameter the drill should be. If there is no suitable length, you can take any and wrap it with electrical tape on top, leaving only the necessary millimeters. Using a drill at low speeds, holes must be drilled in the marked places.
Filling with glue. Blow the finished holes to remove dust, and fill with glue. Sometimes it can come with mounts, but if it is not there, then a simple PVA will do.
This will help fill the cracks formed during drilling, waterproofing and providing a more reliable fixation. Sometimes it is advised to use epoxy for this purpose, but it is better not to do this, since the solvents in the resin can damage the ski.
Construction assembly. The mount must be re-attached to the ski and start tightening the screws, first not completely, to make sure that the installation is even, and only then finally, so that there are no backlashes.
For NN 75, you will first have to insert the boot and check its centering on the ski. Waiting for the glue to dry. After the fasteners are installed, you must wait another 10-12 hours for the glue to dry completely.
This video details how to install the SNS mounts.
Do-it-yourself ski binding installation is doable. The main thing is to have self-confidence and the right tools.
Today, as a rule, two competing binding systems are used for cross-country skis of all categories - SNS (the developer is SALOMON) and NNN (the developer is ROTTEFELLA), as well as their modifications.
Methods for installing mounts of various designs on skis can vary significantly, but when installing any type of mount, the requirements remain unchanged: to ensure ski control and maneuverability, to ensure the reliability of the connection of the ski boot and ski, to maintain the strength of the ski at the mount installation site.
It must also be taken into account that the performance properties of the ski depend on the position of the installed mount and on the quality and reliability of the installation of the mount on the ski.
Both of the above systems have a wide range of different models of bindings aimed at a wide variety of user groups - from Olympic-level ski racers to children, walkers and ski tourists. Depending on the purpose, the bindings differ in weight, strength, and boot fixation rigidity. But for all types of fasteners, the requirements remain unchanged - ensuring:
- the necessary reliability of fixing the boot and ski,
- maneuverability and ski control,
- maintaining the strength and reliability of the ski.
Almost all modern ski binding systems for cross-country and touring skis provide boot articulation and fastening with a brace in the sole of the boot that is captured by the binding.
For traditional types of mounts of all systems - both Salomon SNS and Rottefella NNN, the standard is to install the mount in such a way that the axis of the boot bracket mount coincides with the axis of the center of gravity of the ski. Ski manufacturers strive to provide optimal ski properties specifically for the case of mounting the mount at the center of gravity.
This ensures maximum strength of the ski, optimal "work" - the ratio of rigidity and elasticity of the ski, the best balance and controllability of the ski. Unfortunately, with the stream production of skis, especially when using natural materials, it is almost impossible to achieve the absolute identity of skis.
But inept actions when installing mounts can disrupt the internal structure of the ski, which will lead to a decrease in its strength and to sad breakdowns. To install the mount on the ski, it is advisable to use a special tool that provides convenience and reliability.
To install the mounts you will need:
- jig or template for marking holes on the ski;
- ruler ,
- drill (diameter 3.6mm or 3.4mm),
- drill,
- pencil or marker for marking,
- glue,
- screwdriver
- a pair of skis and a pair of bindings.
markup
Using a ruler, we find the center of gravity of the ski and mark it with a marker.
To mark the holes, it is best to use a special "jig", which allows you to accurately position the position of the drill.
We install a conductor that corresponds to the type of fastening - Salomon SNS or Rottefella NNN, so that the marked center of gravity on the ski and the corresponding label - SKI BALANCE on the conductor coincide.
Ski bindings: main types
The skis presented in modern stores have a special platform that ensures the reliability of fixing sports shoes.
Even if you've chosen your cross-country ski bindings perfectly, installing them incorrectly can damage the structure of your skis, reducing their lifespan and strength.
Everyone can cope with the installation of the mount on cross-country skiing with your own hands. To do this, you will need the following set of tools:
- template for perfectly precise drilling of holes;
- ruler or corner to determine the center of the ski;
- drill with drills 3.4-3.5 mm;
- marker or pencil;
- special glue or simple PVA;
- screwdriver or screwdriver.
For cross-country skiing today, there are several of the most popular systems for attaching boots to cross-country skis:
- SNS - produced by Salomon;
- NNN - produced by Rottefella;
- NIS - Made by Madshus and others.
Ways to install different mounting systems on skis can be different, but there are certain requirements that are always the same:
- ski boots must be securely fastened to the skis;
- the system should provide high maneuverability and ease of control when driving;
- the mount should increase the strength of the ski at the place of its installation.
With a ruler, you need to measure the center of the ski and mark it with a pencil. To mark the holes for screwing in the mounting bolts, use a template or a special jig - this is very convenient and fast. Install a jig suitable for the type of fastening you have chosen - SNS or NNN. Carefully measured and marked center of gravity must coincide with a special mark on the conductor.
If there is no conductor, make a template from cardboard or thick paper (sometimes the mounts are sold with a ready-made template).
If it is not available, attach the mount to the ski so that the center of gravity mark on the ski is aligned with the mark on the template. The same applies to the axis of attachment of the boot bracket.
The holes present on the template must be marked with a pencil or pushed with an awl. This markup option is not the most accurate, so it's best not to use it.
After the holes for the ski bindings are marked, we proceed to drill them. You can make holes with a drill with speed control and special drills of a suitable diameter and with a depth gauge. A special drill has an extension that centers it in the hole of the conductor and stops when it reaches a certain depth.
If you are wondering how to mount cross-country ski bindings, remember the following information.
Before installation, you need to fill the holes made with glue, which fills all the cracks, providing strength and protecting the internal structure of the ski from water.
Without proper hole protection, moisture will seep into the holes and be sucked into the ski cavity, causing rotting from the inside. This usually happens with products that have a honeycomb structure or are made from natural materials.
NIS brand ski bindings
Every skier should know how to put bindings on cross-country skis. The use of NIS mounts greatly simplifies the work process and allows you to adjust the position of the platform for ski boots.
NIS mounts can only be installed on special skis that have a special platform. Similar models are produced by Madshus and some others. During installation, the ski mount should be guided along the guides until a characteristic click occurs. A thrust bearing is also installed along the guides, which is fixed in a suitable position with a special key from the kit.
Mounting a thrust bearing on inexpensive models of ski bindings does not require special tools. The NIS system provides the ability to select the correct location of the binding on the skis, taking into account the characteristics of the track and weather. You can change position before each ski trip or training.
Fasteners are performed on the skis themselves or on a separate platform. Some manufacturers can install and make holes on it themselves. Then you have to purchase fasteners from a specific manufacturer. On a flat platform without recesses, any mounting installations can be installed.
There are three fastening systems:
- Nordic (welted) is an obsolete variety that is gradually falling out of use. Differs in low cost;
- NNN (with rails) have one fastening line;
- SNS (with gutter) has two connection strips.
The last two systems are divided into the following types:
- automatic fixture snaps on by itself;
- you need to fasten mechanical ones with your hands;
- classic - have a soft elastic band;
- skating gum is made of hard material, or there is another fixation point for shoes.
There are such options:
- installations that are fastened manually. Differ in rather high price;
- machine;
- semi-automatic
The last two types can jam after water enters and then freezes in them. Sometimes there are difficulties with opening them if the inventory does not have a solid support (in deep snow).
There are such varieties:
- soft - not suitable for tourism;
- hard availability of special boots;
- semi-rigid - reliable and comfortable.
Children's skis have the simplest fasteners, which consist of several thick fabric strips that fix the leg, and they can even be ridden in felt boots.
What is the mount made of?
Running varieties consist of the following elements:
- NNN - differs by a plate attached to sports equipment, which has two share guides that fix the boot from transverse displacement. On the sole of the shoe there is a pair of longitudinal recesses for fastener guides. A transverse snap-in shank is built into the front of the boot.
- SNS provides for the fixation of shoes with a single share guide. The front part of the low shoe is fastened with a rubber stop.
Touring ski bindings contain pins and a shackle that clamps the shoe welt.
How not to make a mistake when choosing
Properly selected fasteners fit ski boots well, but can instantly detach at a critical moment. For example, during a sudden fall during a sharp turn. With huge loads, the installation should hold the leg in one position, and not immediately unfasten.
Choosing the right fastening system should start with the choice of boots. Having purchased shoes of the right size that meets all the necessary characteristics, you should choose bindings for this pair of shoes and existing skis.
Installation order
To figure out how to properly install the selected ski mount, you should immediately after buying them start by studying the instructions. It is necessary to strictly adhere to the prescribed points, which provide for the specifics of the assembly of ski fasteners, taking into account its variety.
The definition of this parameter will be needed for normal movement so that the ski does not have an “overweight” on one side or the other. Finding the center of gravity is quite simple. Here, the inventory must be installed on the edge of a perpendicular ruler and moved along its surface until the ski is balanced like a scale, it stops horizontally to the floor.
The stationery in this case will indicate the correct position, and this coordinate must be marked with a marker. In modern sports equipment, the axis of the center of gravity corresponds to the fastening feature of the boot bracket. Therefore, the front attachment area should be attached to the ski and its correct location should be highlighted in a different color.
markup
The next step is to mark the holes. A good option would be to use a jig, with which you can find the exact location of the fasteners. If this item is not found, then a template made of paper is used. It can be found on the Internet, but basically it is included in the mounting kit.
Hole drilling
At the beginning of drilling recesses, it is desirable to compare the gap between the holes located on the fasteners with the interval between the marks made during the marking process. As a rule, the instructions say how deep to screw the screws, and how long the drill needs to be used. If there is no tool suitable for the length, then you can use any drill, after wrapping it at the top with electrical tape, leaving the desired millimeters protruding. Then, with a low-speed drill, holes should be drilled at the marking points.
Assembly
The final step is as follows:
- To ensure reliable fixation and eliminate cracks that occurred during the drilling of cracks, the recesses made should be cleaned of dust and filled with adhesive (attached to bundled or PVA).
- Fasteners must be applied to the holes obtained and the screws must be thoroughly fixed. First, twist them slightly to make sure that the installation is even, and then to the end, so that it is secure.
- Leave the skis to dry (10-12 hours).
You can store ready-made skis at home on a balcony or wall by installing a special stand using brackets.
How to remove bindings from skis
You need to start removing the fasteners (for example, SNS) from the back of the installation. Using a screwdriver, carefully unscrew the plug, pull out the screws with a screwdriver, and then remove the strips. To pull out the screw under the front cover, you need to press the latch with a large screwdriver and lift it up. After removing the cover, remove the last bolts, and the fasteners can be easily removed.
Installing ski bindings on your own is a doable process. To do this, you will need to study the attached instructions, have the necessary tools available and, most importantly, be sure that everything will work out.
2 What tools are needed to install ski bindings
First of all, you must have such a tool as a jig. This tool is different and its cost has a large amplitude, however, without it it will be very difficult to find the right balance on skis. With it, you will find the exact places to drill and install fasteners.
- You need a conductor.
- A marker that can then be washed off with water.
- Drill.
- Electric drill.
Depending on the type of fastening, you may need 35 mm or 60 mm drills, check this point in advance in the instructions or in the store.
3 The process of installing ski bindings
For starters, you should learn a little trick on how to find the perfect balance on your skis. You just need to take one of them in your hands and put it on some thin or sharp object, and then quietly move the ski until its end and back are aligned and the ski begins to balance. Mark this place with a marker. The principle is similar to how a person tries to hold a pen on his finger, which constantly falls in one direction or the other.
- Now put your skis on the floor, making a balance mark.
- Attach a conductor to one ski. Carefully align the balance lines on the jig and on the ski.
- Take a drill with an appropriate drill and make a hole for the fasteners, guided by the conductor.
- Screw fasteners.
- Repeat with the second ski.
If you still don’t have a conductor, then you can navigate by this value: the ski attachment hinge must be both in the place of balance and at the end of the big toe. So you can roughly find a place for your mounts.
More experienced runners know that sometimes the bindings can be moved a little forward, then such skis will already be called “skating”. Experiment with styles and you will find a more comfortable way for yourself.
Ski bindings are the most important elements of an athlete's equipment, on which his safety will depend. It is very important to install them correctly. This can be done either with your own hands or in the workshop. This article provides information about the main types, provides instructions on how to remove bindings from skis, how to put bindings on skis yourself.
By design and purpose, there are 4 varieties:
- Soft.
- Rigid.
- Semi-rigid.
- Mountain.
Soft (simple) is a loop made of leather or fabric, into which the foot is placed in ordinary shoes - boots or felt boots. Sometimes, for a more secure fit, an additional strap is used that wraps around the heel. Such loops are usually put on skis for a child or hunting.
Semi-rigid consists of metal cheeks, a sling that holds the boot on top and a strap that wraps around the heel. Previously, they were part of the winter equipment of military personnel. Currently, they are often installed on children's models.
Semi-rigid are of three types: cable, spring, with swinging cheeks. The third type is the most convenient. Unlike the first two, they do not spoil the shoes, they are reliable, they are easy to fasten and unfasten. Good for long hikes. They do not require special shoes, while fixing the boot is much tougher than simple ones.
The most popular are hard ones. There are three systems of this type:
- Nordic Norm 75 (NN 75).
- Salomon Nordic System (SNS).
- New Nordic Norm (NNN).
Nordic 75 is a welted system with a spring-loaded shackle and a locking mechanism. The boot has 3 or 4 holes on the sole, with which it is installed on protruding rods. Then the edge of the boot is pressed with a metal bow. NN 75 is usually mounted on wooden cross-country skis.
Since this design does not fix the heel at all, it cannot be used for skating.
NNN and SNS are the most common designs for plastic running models and roller skis. They come in a variety of models and modifications designed for every level, from hobbyists to world-class athletes. Installing SNS and NNN ski bindings on your own will not take much time. The difference between these types lies in the number of longitudinal guides for fixing the boot.
Both systems can be of three types:
- Mechanical.
- "Machine".
- "Semiautomatic".
New Nordic Norm was developed by Roteffella. Due to the fact that the front brace is moved back, this design is more suitable for skating.
The device is a plate with a double profile holding the sole. Fixation is carried out using a transverse rod. The boot rests on a rubber stop. The rigidity of the stop determines the rigidity of the entire structure. The stops are painted in different colors (white, green, black, red), which determine the degree of rigidity.
There are several NNN upgrades. One of them is NIS (Nordic Integrated System). It is distinguished by ease of installation and the ability to shift the boot along the longitudinal axis.
Salomon Nordic System was developed by Salomon. This device has only one guide. In the front there is a rubber stop, the rigidity of which can also vary. There are two main types:
- SNS Profile
This type is generic. It can be used for both skating and classic skiing. - SNS Pilot
Usually used for skating.
Alpine skis differ from other types in that they completely fix shoes, and are also able to come unfastened when an athlete falls.
There are 4 main types:
- Alpain.
Suitable for skiing on groomed trails. - Frame.
The front is connected to the back with a frame. They allow you to fully secure the foot on the descent and unfasten the heel for climbing uphill. - Pin.
The boot is fixed by means of 4 pins - pins. - Telemark.
Frame and pins are suitable for skiing on prepared trails, as well as for freeriding.
Installation instructions
For installation, the following tools and materials will be needed: marker, screwdriver, drills, ruler, glue, awl.
Center of gravity
Installation of all structures begins with the definition of the balance line. The front edge of the shoe should be on it. Sometimes the center of gravity is already marked by the manufacturer, but it is better to determine it yourself. To find it, you need to put the ski on a narrow object and move it until it reaches the equilibrium position. The line of balance should be noted. This trait will be the axis of the bracket for the devices type NNN and SNS. For NN 75 it will determine where the screws should be placed.
markup
Marking can be done using a special conductor, and in its absence, using a paper template.
Be sure to check the correctness of the markup by measuring the distance between the marks. In NNN systems, fasteners are located closer to the front end relative to the balance line, and in SNS systems directly on the line.
Hole drilling
It is recommended that you follow the instructions included with the kit to determine the required hole diameter and depth. For SNS and NNN systems, holes are usually drilled 10 mm. Remove dust from the finished holes, then fill them with glue. This will provide a more secure fixation of the screws.
Assembly
After that, the device should be attached to the marked holes, and the screws should be tightened evenly. Care must be taken not to displace it relative to the longitudinal axis. For NN 75, it is recommended to check the centering accuracy before screwing. You can go on the track after 12 hours, when the glue dries.
If old fasteners need to be installed on new equipment, it will not be difficult to remove it. Start disassembly from the back. First you need to carefully remove the plug from the screw and unscrew it. Then remove the bar, unscrew the two bolts under it. The last bolt is also under the plug.
How to install a ski mount on mountain modifications?
Installing bindings on such skis is practically the same as installing on cross-country skis. This work is carried out in several simple steps.
First, the center of gravity is found as described above. Then you need to lay the fastener so that its front edge exactly matches the balance line, place the boot in the clip and align it. After that, you should carefully mark the holes with a pencil or awl, drill them. Then attach the front with screws. The back is set to the middle position, and holes are outlined. Holes are drilled, the back is fixed with screws. Installation ends with configuration.
Recently, some models are produced with pre-installed platforms, on which it is easy to install latches without fixing with screws. This makes it possible to reinstall for a different shoe size, as well as the possibility of displacement along the longitudinal axis.
The choice of bindings depends on the style of skiing, as well as on the degree of preparedness of the skier. It is recommended to buy products from trusted well-known companies such as Salomon, Fisher, Atomic. The products of these manufacturers are distinguished by reliability and high quality.
