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Ski Binding Guide & DIN Setting Chart

 
 
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We have one of the largest selections of ski bindings on the web, a super knowledgeable staff and expert guides. 


DISCLAIMER: THIS GUIDE IS FOR INFORMATIONAL PURPOSES ONLY. IT IS NOT INTENDED AS A “DO IT YOURSELF” GUIDE TO SKI BINDING MOUNTING, ADJUSTMENT AND/OR MAINTENANCE, NOR AS A SUBSTITUTE FOR PROFESSIONAL ADVICE AND SERVICE. ALWAYS HAVE YOUR SKI BINDINGS MOUNTED, ADJUSTED, SERVICED AND INSPECTED BY A CERTIFIED SKI BINDING TECHNICIAN.
 

To choose a ski binding start by determining:
  • The waist width of your skis 
  • Your DIN setting
     ( May require assistance from a certified ski technician)

The waist width of your skis will determine what size brakes you need, while your skiing ability, weight, height and boot sole length will determine the bindings' release force setting (DIN). Once you've established an accurate DIN range and brake width, you can look at additional binding features.

After selecting your ski bindings always have a certified ski technician mount and make the appropriate adjustments to ensure the bindings operate safely.

 

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Contents
Brakes
Release Force setting (DIN)
Recommended DIN Range for Ski Bindings
Features and Options
Ski Bindings and Ski Boot Norms
Specialized Bindings
Alpine Touring Ski Bindings
Mounting Your Ski Bindings
Maintaining Your Ski Bindings



Brakes

The arms attached to the heel piece of your ski bindings that stick out on the side of your ski are called brakes. Ski brakes are designed to stop your skis after release so you can retrieve them quickly and they don't pose a danger to other skiers.

Is the brake wide enough for your skis?
Your skis’ waist width will determine the ski brake width (the distance between the two brake arms). For example, if your skis are 80mm wide at the waist, you will need bindings with a brake width of at least 80 mm and preferably no wider than 95 mm. If your brakes are too narrow they will not clear the edges of your skis and will not deploy properly when your ski comes off.  If your brakes are too wide they may drag when you put your skis on edge, especially on steeper terrain.

Wide brakes for fat powder skis can often be purchased separately. The narrow brake is removed from the ski bindings and replaced with the new wide brake. Not all binding models offer user swappable brakes, so ask your shop and have a certified technician perform the work if needed.

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Two different brake widths shown on a K2 Pontoon Ski.


Release Force Setting (DIN)

DIN, short for Deutsches Institut für Normung (German Institute for Standardization), is the industry-adopted scale of release force settings for ski bindings. Though an identical set of standards is published by the International Standards Organization (ISO), most skiers continue to refer to binding settings as "DIN." The DIN setting will be set by a shop technician, based on your weight, height and ability level, when your bindings are mounted on your skis. The lower the DIN , the lower the force required to release from your bindings. Your skiing ability as well as your weight will help you determine the appropriate DIN range for your bindings. Ideally, your DIN will be set somewhere in the middle of your bindings’ DIN range rather than at the high or low limits. See our DIN chart below.


DIN Range for Ski Bindings

Skier Weight25-65 lbs30-100 lbs50-165 lbs65-200 lbs65-240 lbs65-250 lbs130-285lbs130-200lbs+150-200lbs+
Ability LevelBeginner - IntermediateBeginner - Intermediate Beginner - IntermediateBeginner - IntermediateBeginner - AdvancedIntermediate - ExpertIntermediate - ExpertIntermediate - ExpertExpert - Pro
Brief DescriptionLightweight childrenJunior skiers Heavier beginning or beginning to advanced junior skiers  Intermediate junior skiers or lightweight beginning adult skiers.Beginning skiers or lightweight intermediate to advanced adult skiers. Intermediate skiers who are heavier or lighter weight expert adult skiers Heavier or more aggressive intermediate to expert adult skiers.Heavier skiers, very aggressive advanced and expert adult skiers.Aggressive expert big mountain skiers and racers.
DIN .5 to 2.5.75 to 4.52 to 73 to 103 to 113 to 126 to 146 to 168 to 18

Important Notice: This chart is intended only to give you an idea of the general DIN range you need. There are a number of factors which influence binding adjustment and the settings must be precise, so use this information to help select an appropriate model of binding but don't try to set the DIN yourself. If you don’t find the answers to your binding questions in this guide please give our customer care team a call at 866-386-1590, Customer Care Hours.

Strength
Another important aspect of a ski binding is its strength. Higher DIN bindings designed for advanced and expert skiers are built with beefier construction and stronger materials to accomodate the higher forces generated while travelling at higher speeds and negotiating steeper, more technical terrain. Generally, the more advanced the skier the stronger and more elastic their binding should be. Attributes which contribute to a binding’s durability include material density and tensile strength, DIN range, metal parts instead of plastic, stiffness and design of pivot points.



Ski Binding Features and Options

Now that you understand DIN settings and ranges, know your brake width and have decided how strong a binding you need, you're ready to decide on a ski binding - but there are more choices than types of pasta in Italy. The following features cater to skiers with specific styles and help to differentiate between appropriate bindings.

Anti Friction Device (AFD)
The AFD can be a sliding mechanism or a low friction fixed device on the binding's toe piece that sits under your ski boot. It is a smooth piece designed to minimize friction between the binding and the boot during a lateral release. The purpose of the AFD is to allow the boot to slide sideways more smoothly during release.

Elastic Movement
To reduce the likelihood of inadvertent release, bindings allow a certain amount of elastic travel for vertical and lateral movements before the skier releases. The elastic movement in your bindings is also designed to provide substantial shock absorption during landings or in bumps.  Some bindings provide a greater range of elastic movement than others.

Riser Plates
Riser plates reached a height of popularity in the mid 2000's with racers and carving oriented skiers, because they allowed more leverage and steeper lean angles. Because of limits placed on risers by the FIS (F
édération Internationale de Ski) and the growing popularity of types of skiing other than racing that lend themselves to a flatter binding placement, their popularity has dwindled.

Flat Skis vs. Skis with Integrated Bindings
Skis with a flat topsheet will accomodate just about any binding as long as the brake width (see above) is appropriate to the ski’s waist width. System or integrated bindings are mounted to a plate or track on the ski. These bindings are designed to be paired to a specific ski. 


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Ski Bindings and Ski Boot Norms

What if I get new ski boots or my boots don’t fit my new bindings?

If you buy new boots and want to use them with your old skis, you'll need to have your bindings adjusted to accommodate the new boot sole length and tested by a shop tech. All alpine bindings have some adjustability, but the range of adjustment is limited and in some cases the bindings will have to be remounted to work with a new boot.  Adjusting or remounting your ski bindings in these circumstances is not something you should do yourself. In all cases it is highly recommended that any changes or adjustments to your bindings required to accommodate your boot be made by a certified technician.

Junior Norms vs. Adult Norms for Alpine Ski Bindings and Ski Boots
All current alpine boot manufacturers make ski boots with different adult and junior norms that meet ISO (the International Organization for Standardization) specifications. Alpine ski boots are typically stamped with “ISO” or “DIN” to indicate that they conform to these norms. Generally, adult ski boot sole dimension norms begin at size mondopoint 22 (US Men’s Size 4)  and go up to 31.5 or even higher. Junior ski boots run from mondopoint 14.5 to mondopoint 22.5. This is critically important to note, as you'll need a ski binding that conforms to either the adult norm or junior norm. You cannot use a junior norm ski boot with an adult ski binding. Most junior bindings, which have lower release settings, can accept adult boots but almost no adult bindings will accept junior boots.  There are a few exceptions of junior bindings that will accept either type of boot, and if your child is at the stage where he or she is in between junior and adult products it may make sense to check out one of them. Before making a purchase or mounting decision, always confirm that the binding you select for a junior is, in fact, a junior-specific binding. 

Junior Skis vs. Adult Skis
Ski bindings must be compatible with the user’s skis as well as their ski boots.  A thin profiled junior ski is not deep enough to accommodate adult length ski binding screws.  Adult screws are designed to sink approx 8mm into the ski where junior binding screws are designed to sink only about 6mm.  The extra length of an adult screw doesn’t seem like much but it is enough to leave bumps in the ski base of a junior ski.  Additionally, if you were to use kid’s binding screws on an adult ski the screws may not have enough depth to hold the binding to the ski under normal pressure applied by an adult.



Specialized Bindings

Variable Mounting-Position Systems
Variable mount bindings like the
 Marker Jester Schizo and the Marker Griffon Schizo can be adjusted up to 3 centimeters forward or back of the mount midpoint for a total 6 cm of adjustability. A screw on the front of the toe piece allows skiers to make on-hill adjustments. For example, move your bindings back to ski pow in the morning then move them forward in the afternoon to session the park.

Demo Ski Bindings
Demo ski bindings are usually used on demo skis or rentals and are designed to adjust to a large range of boot sole lengths quickly and efficiently. If you buy a used ski package from evo or elsewhere, the ski bindings included will typically be demo bindings. Demo bindings often have a wheel or a scale on the plate between the heel and toe piece that will indicate the boot sole length the binding is set for. Although demo bindings are relatively easy to adjust, it is highly recommended that you have demo ski bindings properly adjusted and tested by a certified technician.



Alpine Touring Ski Bindings

Alpine Touring (AT) ski bindings allow the skier to lift their heel to travel uphill with climbing skins and lock it down for descending. AT bindings are designed for touring but can often be used successfully for lift served skiing as well. Various design solutions offered by a number of manufacturers allow this dual purpose (uphill and down) function. evo carries AT ski bindings by Marker, Salomon, Atomic, Fischer, Fritschi, Dynafit, G3 and Plum.

Alpine touring bindings can generally be divided into two types, frame AT bindings and tech (Dynafit-type) bindings. Frame bindings have toe and heel pieces like alpine bindings that are connected by a plastic or metal frame, while tech bindings rely on the rigid sole of the ski boot as the "frame" and require a boot with special molded-in toe and heel fittings.

If you think you may be interested in alpine touring bindings, check out our guide on how to choose them here:

Alpine Touring Bindings - How to Choose
Shop Alpine Touring Ski Bindings


Alpine Touring (AT) Ski Boot Compatibility
Alpine touring ski boot toes and heels have different dimensions than alpine ski boots. AT boots often feature rockered lugged soles for security when walking on steep and slippery surfaces, and some have tech fittings molded into the toe and heel to enable the use of lightweight tech bindings. These soles are often incompatible with common alpine bindings. (Some AT boots offer interchangeable soles so you can choose between AT and alpine shapes). Ask your shop or a certified technician if you are unsure about a specific boot / binding compatibility issue.

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Telemark Ski Bindings
Telemark bindings are designed to be used with telemark boots, which bend under the ball of the foot.  The heel of the boot is free to travel up and down permanently in order to facilitate the unique and soulful telemark turn.  We do not currently sell telemark bindings.



Mounting Your Ski Bindings

Once you decide on a pair of ski bindings, take them with your skis and both boots to your local ski shop to be mounted by a certified technician. You'll need to complete a mount form with your height, weight, age, boot sole length, and skier type. You are responsible for determining your skier type, normally described as I (beginner), II (intermediate) or III (advanced).  A certified shop tech will have the proper equipment and knowledge to install your bindings and adjust them according to your ability level and preferences. The installation must be done professionally to ensure your bindings function as designed. Manufacturer's warranties will be void if the products are not mounted by a certified technician. 

Mounting Position
Mounting position affects how your skis perform in different snow conditions and terrain. Although most skis have a recommended (default) mounting position that works well for most people most of the time, that position may not suit your needs or preferences. Mounting the bindings farther back generally results in a less responsive, more stable feeling ski with more float in the powder. Mounting the bindings further forward generally gives you quicker turn response and improved performance when skiing switch (backward). If you are in doubt as to where to mount your skis, it's usually safest to use the manufacturer's recommended mount point.

Sole Wear
Excessive wear in the toe or heel of your ski boot can affect the boot/binding interface and compromise functionality. Check for excessive wear at least annually if not more frequently. A certified technician can inspect your boots for excessive wear using a template, and determine whether your boot soles are within the required limits.

Toe Height Adjustment
Toe height is the height of the gap between the top of the toe piece and the AFD. Bindings typically require a clearance of about 0-0.5mm between the boot sole and the AFD to function properly. Many alpine bindings feature automatic toe height adjustment, while others should be manually adjusted by a certified technician.


Shims and Canting
Skiers whose body geometry or personal preferences require canting or ramp angle adjustment can often be helped by installing shims under the bindings during the mounting process. If your natural stance places too much pressure on either your inside or outside edges, or if you feel your toe or heel is too high, ask your shop about this option.

Maintaining Your Ski Bindings

Unless otherwise specified by the manufacturer, ski bindings are designed to be relatively free of maintenance. However, we strongly recommend that you have your bindings inspected by a certified technician before the start of each season.

Keep bindings free of dirt, rust, salt and other contaminants.

Don't attempt to wash or clean your bindings with soap or solvents as you may remove factory lubricants which are vital to proper operation and function.

Always store your skis and bindings in a warm, dry place and do not leave bindings wet for long periods.


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Learn more with our other Ski Guides:
Skis – How to Choose & Size Chart
Skis – Kids' Size Chart
Skis – Rocker Technology
Alpine Touring Skis – How to Choose
Skis – Weight Chart
Ski Boots – How to Choose & Fit Guide
Ski Boots – Size Chart
Ski Boots – How to Try On
Ski Boots – How to Make Your Boots Fit Better
Alpine Touring Ski Boots – How to Choose
Ski Boots – Weight Chart
Ski Boots – Boot Sole Length Chart
Alpine Touring Ski Bindings – How to Choose
Ski Bindings – Weight Chart
Ski Poles – Size Chart
Skiing  How to Get in Shape
 

This is evo. We are a ski, snowboard, wake, skate and clothing online retailer with physical stores in Seattle and Portland. Our goal is to provide you with great information to make your purchase easy.

Still have questions? Please give our customer care team a call at 866-386-1590, Customer Care Hours. They can help you find the right ski bindings to fit your needs.