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March 1, 2008

How to define the right binding mounting point on skis?

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Written by: Janne Niini
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“Core center”, “Mid sole”, “True center”, “Modern”, “Traditional”, graphs from 0 to +7,5…

Today’s skis come with strange signs on their top sheet. Back in the day of straight and long sticks there was one simple line where you put your bindings and that was all. Mogul skiers sometimes mounted ~1cm forward for increased ability in fast short turns. But it was pretty simple and you didn’t have to think about the issue that much at all.

Then came the super sidecuts, fat skis, twin tips and all the modern gimmicks. You began to see young guys mounting their bindings even forward of the true middle point of the whole skis!(e.g. Jon Olson is famous for that).

For the old school skier something like that sounds pretty ridicilous, doesn’t it? But wait! As the ski industry started to notice that not everyone is a GS skier who just wants to cruise groomers on maximum speed, things got more complicated also for the user of the equipment. Now you had to know what you want to do with the skis, what’s your ability, favourite terrain etc.

K2 skis (with skiers like Seth Morrison on their team) has been on the forefront with the thought that binding mount is a personal preference. That’s what I found on their web site, and I think it is pretty spot on:

With today’s twin tip all mountain, and park and pipe specific skis, riders are commonly mounting their skis forward from a traditional mid sole mounting point. The main benefits are increased control when riding or landing switch, and a more neutral balance in the air or on rails. For this season, all Factory Team skis have a mounting scale on the sidewall running from traditional mid sole mark, to a 7.5 cm forward marking. Following is a general guideline for where to mount these skis. If you are uncertain, the best bet is to go conservative at first and stick to a traditional mount.

0 to 2cm forward: All Mountain Riding – If you plan on skiing mostly outside the park, and want the ski to behave like a traditional ski, you should stay on the conservative side and mount closer to the traditional mid sole mark.

3 to 5 cm forward: 50% All Mountain, 50% Terrain Park – When mounting beyond 3 cm, you will lose a little of the traditional feel of length in front of the binding, but with more tail, you gain the control in the air and riding switch. Seth Morrison mounts his skis at 5 cm forward.

6 cm to 7.5 cm forward: Terrain Park or Switch Riding – If you bought the skis primarily for the terrain park, or are focused on riding switch in the backcountry, you may consider mounting your skis this far forward. While you may sacrifice forward directional float and stability, it’s made up for in switch riding and landing balance and performance. From 6 cm to 7.5 cm forward is where Pep, Benchetler and Mahre typically mount their skis.

You see, today’s skiers differ from each others, and actually quite a lot. I have a strong old school mogul background and like to be able to drive the tips and stay forward in any situation. Even though I like to do some park skiing too and try some switch stuff here and there. I’ve also noticed that even on big mountain skis I like some tail for some added stability on landings (not that I go too big but still…).

So, it is pretty easy to see that I’m somewhere on the middle ground of the pure all mountain skier and a hard core new school jibber. If I would buy new K2 skis I’d probably mount them somewhere around +1 to +4 depending on the model. For a pure park ski I would go even further forward. (See the pic below: the author skiing crud on the older 189cm K2 Seth Pistols mounted at +4… the mount felt a bit too forward but still totally manageable, even on tricky snow!)


The mounting point is no big dilemma. You just have to know what you want and if you are unsure consult your local ski shop and/or the skiers in the know (I’d say demoing a lot of skis, if possible, is the key here). On most cases it is pretty safe to mount the bindings for the recommended “traditional” (often called “mid sole” point) mark. This applies for most piste/intermediate skis, as well for most race skis too. Freeride skis are different animals though – at least you probably see “traditional” and “modern” line on most skis today, meaning that you can choose the more traditional (all-mountain, mostly go forward) ski behaviour or the more modern, freestyle oriented style (switch riding, take offs and landings, rails and jibs etc.).

I like the thinking of K2 where they see the graph as a continuum: not just traditional vs. new school but a much more complicated choice of personal preference. Remember that it is very much possible to do switch tricks with traditional mount and ski big lines (well) on close to center mounted skis, it just take some adaption and skills, of course.

Ok, some might think that this info was pretty useless – trust your shop and manufacturers recommendations etc. Anyway, I’ve found out that the internet is full of questions considering the mounting points of different skis. And that these questions have rised alot of unsecurity, especially among the less experienced skiers. Quite alot of people also seem to follow current trends pretty blindly without any real clue of what they are doing.

The above on mind, I made a list for help and/or avoiding the most common mistakes:

  1. As K2 recommended: If you are uncertain, the best bet is to go conservative at first and stick to a traditional mount.
  2. However, if you are screwed, don’t hesitate to remount. A general rule is that a well constructed ski takes two to three mounts easily without any problems.
  3. If you want just one pair of skis with real all-mountain ability, demo bindings are one solution. So you can easily move the binding point for different purposes. Demo bindings have their disadvantages though (additional weight, additional height, some “slop” on the system etc.). If you are a recreational skier that skis only under ~15 days a year, demo bindings could serve you very well.
  4. All good shops know this but it is not stupid to always check: don’t trust the marks on the top sheet, they are often mislocated and suprisingly much too (this is due to manufacturing process of the skis, I won’t go into details here). Marks on the sidewall are much better reference but if you want be 100 percent sure – MEASURE. Using the standard method of always measuring from the tail (or tip) of the skis, you can’t go wrong. This is especially important if you mount your own skis (then you probably know what you are doing anyway!) but I’ve also noticed that some shops think quite conservatively and tend to mismount when asked to center mount/mount far forward. Measuring first and then giving the exact binding location to the shop is always a good way to make sure you get what you want.
  5. Stiff and straight skis tend to be more sensitive for small changes of the binding location. Do not get too experimental with the so called “charger” skis (e.g. Rossinol Bandit B-Squads, Head Supermojo 103′s, Igneous FF’s etc.) (Too) long, stiff tail leads easily to very bad skiing, for many different reasons.
  6. The great mounting thread on TGR forum - read and learn alot more…
  7. Older (before 06/07) K2 skis had the scale (graph on the sidewall) off -2cm. The real “0-point” thus being +2 on the graph. Count that in when comparing different options.
  8. Generally, on telemark skis things have gone to the other direction than on alpine skis: it is simpler now. Earlier people calculated complicated (for me at least) “balance points”, “chord centers” etc. but today most (good) telemark skiers I know simply mount using the same recommended marks than alpiners. Telemarktips.com has more info on this than you probably ever want to know but I recommend to check the site out anyway. I don’t know so much about telemarking that I’d go into deeper details (although I plan to ski some more tele this spring btw. Telemarking is just fun, gotta admit that!)
  9. Speaking about telemarking: I don’t want this sound like a K2 ad but I really like their insert system on the telemark line too. I wonder how long it would take the alpine manufacturers to figure out a reliable insert standard? I mean, snowboarders have had inserts for ages and now even telemarkers do (at least partly). Why is this so hard for the industry? It would make so many things easier for the skier IMHO – for now we can only wait and see…

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About the Author

Janne Niini
I am a former (not-so-competitive) mogul-skier who nowadays enjoy many aspects of snow-gliding: alpine, telemarking and occasional snowboarding too. I have two small daughters and try to ski with them as often as possible.




 
 

 
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3 Comments


  1. greg

    You didn’t mention the reason to mount back of mfg recommendations. If you ski centered you might find mounting back as far as 1/2″ can give the ski better hold on the snow. For example, if your boot size is around 315 to 320cm and mount -1/2″ you find a Fischer Watea 84 will ski better. Yes personel prefs do make a difference. I don’t find going forward for bumps and powder to be an advantage because the ski doesn’t hold as well.


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