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Hey binding manufacturers - go fat?

post #1 of 83
Thread Starter 
Not wanting to hijack the Duke thread over in the BC area, I figured I'd spin this up here. It seems to me that part of how Marker has pulled off the Duke (and Jester) is by ditching skinnier skis. My sense is that by relaxing the requirement that skinnier skis be supported, the door was opened up to a number of improvements. If I'm interpreting the designs right, the 76 mm minimum is not just about "better" power transmission to fatter skis per the marketing blurbs - it is part of what has enabled the designs in the first place.

So, why not step up and focus on the future rather than the past? What could you do in terms of weight, pressure transmission, size adjustability, stand height, etc. - maybe even reliability - if you dumped everything below say 90 or 95?

Yeah, you gotta support those skinnier things. But how much better is anyone going to make a typical current style binding that fits skinnier skis? I mean really? Why not just let those things run their course for a few years and see how the world could be improved where the market is growing? Need some anecdotal evidence - talk to some dealers who are merrily stocking out of the new Markers...

I know in my household the odds of anyone ever buying a ski below 95 or 100 again are slim indeed. I'd sure love it if someone invested like crazy in my end of the market. Well, others in addition to Marker anyway -- competition tends to be good for consumers. Heck, maybe even a new sole standard could evolve if that made sense in terms of the mechanics.

Am I missing something? Is my layman's understanding of the mechanics/physics off-base? Any MEs or other similar types out there care to comment? Any binding designers?
post #2 of 83
What is the point of a binding platform wider than the soles of alpine boots?

Its not the bindings, its the whole standardized boot, binding interface. As long as boot soles are only about 76 mm, why would you eliminate every ski under 90 mm?
post #3 of 83
Thread Starter 
Cirquerider, you raise a fundamentally good point. Obviously given current boot standards, there would be a point of diminishing return in terms of benefits. However, I would not be surprised if that were somewhat wider than the current boot sole width - think of an analogy like the bearing zone of a foundation & how pressure is distributed. Think of the force per square <unit of your choice> applied to a wider binding track vs a narrower one. I picked 90 as an arbitrary place because I just don't care about anything smaller - and that seems not so unusual these days. If 76, or 80 or 85 gets you the same benefits, no big deal to me. And obviously, all other things being equal a bigger market is better than a smaller one if you are a manufacturer.
post #4 of 83
Using your example of a bearing wall or foundation, structures communicate and distribute load to ground through sill plates, stemwalls, piers, and eventually the wider footer and into the ground. Narrow to fat. Sound familiar? There is no advantage structurally or cost-wise to building a house on a 24 inch sill plate that matches the footer.


Getting back to skiing, the foot is almost counter-levered over the boot sole with an overhang, predominately on the outside. We are still using boots designed to effectively transfer force to narrow racing skis and avoid boot-out. There may well be an advantage to a 90 mm wide boot sole! But I think the boot design will come first, or in conjunction with any radical binding re-design. I would also risk saying, the manufacturers still see wide skis as a niche market and the boot makers haven't even considered departing from DIN or ISO.
post #5 of 83
Thread Starter 
You are not levering a house onto a 45 degree angle either And I was not proposing that the entire binding be that fat. Merely that one might be able to distribute the forces in play more easily, cheaply, whatever... by assuming a wider binding base. Not that the entire binding should be arbitrarily fat. Obviously at least Marker has started down this road. Otherwise there would have been no point in leaving behind any part of the market. Is 76 the magic number in today's world???

Nonetheless, you raise some good points. Regarding DIN/ISO though - new standards can be proposed and approved. It strikes me as odd that the fastest growing part of the market is performance limited (or at least has been) due to support for standards devised with very different underlying assumptions. Maybe it is time to break out of the box?
post #6 of 83
I don't get what benefit you think the wider binding has in a broad sense. Cirquerider makes good points.

Magnitudes of the torques we transmit through the sole are fairly small in any case. See: this instrumented test and analysis of ski boot sole stiffness. ~20Nm. You are claiming skis are "performance limited" by narrow boot soles and narrow bindings, yet you don't appear to have any good reason to say so.

If you aren't skiing in plug boots with the stiffest and thinnest liners you can bear you don't really have a horse in this race anyways as you haven't taken advantage of the low hanging fruit.
post #7 of 83
Thread Starter 
Quote:
Originally Posted by Garrett View Post
...You are claiming skis are "performance limited" by narrow boot soles and narrow bindings, yet you don't appear to have any good reason to say so.

If you aren't skiing in plug boots with the stiffest and thinnest liners you can bear you don't really have a horse in this race anyways as you haven't taken advantage of the low hanging fruit.
I do not think that's what I'm claiming. I am asserting that engineering is a discipline of compromises. And that most binding designs seem to assume that the binding must work on a "narrow" ski. Yet it seems to me that, at least in many cases, the narrow ski thing is an artifact - the result of knowledge and materials available at the time the standards evolved. I am asking the question: "what might binding designers reasonably change if the 'narrow' width requirement were removed?" Presumably, this would allow a different distribution of forces. What would that allow a binding designer to do in terms of the design factors/elements I brought up before? Or any others that made sense? Or would removing that restriction allow for no significant improvements?
post #8 of 83
Theres a bit of a paradox here.

"All mountain" "Freeskiing" or whatever you want to call them, most non race bindings for advanced skiers are a max of 14 din, and very little metal. There is nothing made specifically for good big mountain (or park) skeirs that want durable bindings with a bit higher dins. As I've always understood it, there just isn't a big enough market to justify this, so these people end up using race bindings.

Now, if manufacturers start making bindings with wider footprints, they are all going to be plastic, and freeriders are still going to be stuck using race bindings. If theres no market for wide brakes for race bindings, I really doubt there will be a market for wider race bindings.
post #9 of 83
Here is a little expansion of what Maggot has correctly surmised.

The fixation point of the binding system to the ski....Ie: the hole pattern, is the point from which leverage is applied to the ski. Anything outboard of this is subject to the torsional flexion of the materials in use. If the binding is mounted to a DeFlex....the system is as rigid at the edges as it is at the point of fixation. OTH....if the baseplate of the binding is flexible (plastic) then any additional leverage generated by a baseplate outboard of the screw holes is suspect.

BTW....why wuzzit again, that skiers of this caliber equipment have been so adamant about unlifted (ie: less leverage) binding setups??? But, then they prefer the far more rigid structures of race bindings. Then again, said skiers are suddenly going weak in the knees over something that supposedly offers more leverage?



SJ

Bringing World Cup caliber ski equipment and service to all skiers - from pro ski racers to everyday all mountain skiers and into the...

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post #10 of 83

I have noticed with my 184cm Volkl AC4s there are

different forces on my boots than what I experience with narrow skis.
So perhaps boot and binding designs need to be developed to cater to
these new forces.
post #11 of 83
Thread Starter 

In light of the Quiver Picture thread discussion, I thought I'd surface this again. Still seems to me that going wider offers the opportunity for substantial improvements in a number of dimensions (no pun intended). And that this is in no way merely about "marketing".

 

I see no reason to believe overall binding performance on narrower skis will ever improve materially under the current standards. Yet I see huge opportunity for improvement on modern (aka fatter)  skis - both under the existing standards and any newer ones that might evolve. I'd really appreciate it if the binding guys just got on with the future.

 

In light of my OP, the narrowest skis purchased in my household in 3 or so years have been 106 at the waist - and those are touring skis. Lots of folks around here are using skis fatter than that as daily drivers at this point.

post #12 of 83

A wider boot sole would enable a much lower stack height, no 1/2" thick cavity between the boot sole and the bottom of your foot.  More comfortable boots in general.  I wonder if there could be a way to add notches in the wide boot lugs to also accommodate conventional/traditional bindings so folks could still use their old skis with their new boots?

 

Most of all, fatter boots and bindings would LOOK MUCH COOLER!biggrin.gif

post #13 of 83
Quote:
Originally Posted by spindrift View Post

In light of the Quiver Picture thread discussion, I thought I'd surface this again. Still seems to me that going wider offers the opportunity for substantial improvements in a number of dimensions (no pun intended). And that this is in no way merely about "marketing".

 

I see no reason to believe overall binding performance on narrower skis will ever improve materially under the current standards. Yet I see huge opportunity for improvement on modern (aka fatter)  skis - both under the existing standards and any newer ones that might evolve. I'd really appreciate it if the binding guys just got on with the future.

 

In light of my OP, the narrowest skis purchased in my household in 3 or so years have been 106 at the waist - and those are touring skis. Lots of folks around here are using skis fatter than that as daily drivers at this point.

It is pure marketing.

 

What HUGE improvements do you see exactly? If the boot is not moving more than the ski, there is nothing left to gain.

post #14 of 83

Which do you think would be more optimal from the standpoint of ski strength and feel for the rider?  The one on the left appears prone to sagging torsionally.  The one on the right places the inside and outside edges of your foot closer to the edges of the skis, distributing the load across the full width of the ski instead of concentrating it in the center.

 

 

 

You'll never convince me that standing in the left side boot would be as comfortable as standing in the right side boot.

 


And IT LOOKS MUCH COOLER!

post #15 of 83
Thread Starter 
Quote:
Originally Posted by crgildart View Post


And IT LOOKS MUCH COOLER!

 

DUDE! You totally got what I'm after!!!!!  biggrin.gif

 

 

Seriously though - for the doubters, just do a few thought experiments. And just to provoke some of that, maybe go lift a sheet of plywood from some different "anchor points". Think of how demanding it is for an engineer to make something as small/narrow as a current alpine binding - and do it so it meets its mission and is effective,  reliable, durable and affordable. I am pretty sure relaxing the width constraint would open up all sorts of opportunities. 

post #16 of 83

This thread is 5 years old and skis have gotten significantly wider since this thread was started. Wider boots/bindings are still nowhere in sight. My guess is that the ski industry sees wider boots/bindings as a major R&D expense with a switch over/compatibility problem to solve. For every skier ready to pony up for new boots and bindings there may be others who postpone boot purchases. Long term they are not likely to sell any more wide boots and bindings per year so no real financial gain for the industry unless they are cheaper to manufacture.

 

Here is a bigger puzzle to me: Fischer has just come out with the vacuum ski boot which seems very innovative, yet my hockey playing friends tell me vacuum ice skates have been around for at least 6 or 7 years and are pretty much the norm for serious recreational hockey players. What has taken the ski boot makers so long?

post #17 of 83

The issue of wider bindings is a material science issue.  Once the material in a given thickness etc is able to withstand the loads placed on it...beefing it up beyond that point serves no purpose other to add weight and expense.  Standard bindings easily meet the load requirement placed on them. 

 

Other benefits?  A wider binding would have the same effect of placing a wider plate on the ski, increasing its torsionally rigidity.  However this would change the characteristics of the ski.  People add plates to do this all time, and intergrating bindings into the plates is also not a new idea.  But increased torsional rigidity is not really something powder skiers seek to the same degree as those on hardpack.  So it must be understood a wider binding would change the characteristics of the ski.

 

To me thou the biggest benefit is a wider boot sole.  This could be better for hiking to various terrain.  Beyond that no real benefit would exist.  Having said that would this idea sell?  I think so for sure.  Lots of crazy crap sells in the ski industry, its a very marketing driven industry.

post #18 of 83

Having spoken to some product managers in recent months, at least at this point, wider soled boots are not on the radar screen. Wider bindings have already happened but the added width is again.....mostly flexible plastic. Marker has finally widened to actual baseplate of the new version Duke to a point where it is now almost as wide as some other bindings have been for a decade. They have also added a lot of plastic surrounding the fixation points. What are you gaining I wonder?

 

I guess the still open question would be what is the benefit that ya'll think would come from wider boot soles and wider yet and/or lower bindings? Or.....is it that you wish to see wider boot soles but taller systems? Or what?

 

Is the desired benefit more leverage and/or power to the edge? Or would it be less? It might be a good exercise to axe onesownselfs the following questions...........

 

In all this talk of improved performance.....what performance factor(s) do ya'll think are going to get better?

Why would power to the edge of a wider ski be of much benefit given the typical usage? Does one need that?

If in fact power to the edge were a worthy goal, why do many owners of wide skis seldom if ever tune their skis or even maintain them?

Why is it that a good number of die hard wide ski skiers aggressively dull or over bevel their skis?

It is known that taller stack height improves leverage and power but lower height is the trend on wide skis from the typical user....why?

It is known that lower camber reduces edge pressure at the extremities, and reverse camber reduces it even further. If power to the edge were desired, reverse camber is counterproductive.

Why would we want to reduce pressure distribution though ski shaping but then reverse some of those benefits by adding leverage through the boot binding system?

 

 

Sure seems that this is much ado about nothing......and btw don't hold your collective breaths for wider boot soles.

 

SJ

Bringing World Cup caliber ski equipment and service to all skiers - from pro ski racers to everyday all mountain skiers and into the...

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post #19 of 83

I've been considering molding or casting a insert that fits onto a boot and just widens it and drops that power right onto the ski surface. Dont know what this would do to the way the binding releases, which is a huge consideration and fallacy. I would certainly enjoy the benefits of a wider binding pattern and interface, from my experience I like being as close to the ski as possible when I'm riding, it just feels better and rides easier. 

post #20 of 83

omg! we need some snow and in large quantities, stat!

 

great job SJ of trying to interject some reality into a ridiculous topic. which by the way got restarted by spindrift posting "Still seems to me that going wider offers the opportunity for substantial improvements in a number of dimensions" and "I see no reason to believe overall binding performance on narrower skis will ever improve materially under the current standards. Yet I see huge opportunity for improvement on modern (aka fatter)  skis - both under the existing standards and any newer ones that might evolve. I'd really appreciate it if the binding guys just got on with the future." the key words used to restart this i wish i had a fish dreamy dreamy thread are "still seems" and "I see no reason to believe"

 

i am still waiting for the cool self drying jacket that marty mcfly had in "back to the future."

 

if this was an automotive forum this thread would be about wishing for the day that automotive engineers would stop making cars roll and get them to fly instead.

 

hey honey, do these bindings make my butt look big?

 

please snow soon

 

jim

Bringing World Cup caliber ski equipment and service to all skiers - from pro ski racers to everyday all mountain skiers and into the...

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post #21 of 83

Ya, if I owned a ski shop I'd be naysaying this all to hell too.  Imagine all of the additional investments it will require for us to have cooler looking ski boots and bindings on our fat skis.  All new jigs for starters...  Boot fitting will change dramatically.  I'm guessing that without the foot placed precariously over a 2.5" plank and instead over a typical sized boot sole a lot of professional boot fitting would become unnecessary.  Might still be some canting involved though..

post #22 of 83
Quote:
Originally Posted by crgildart View Post

Ya, if I owned a ski shop I'd be naysaying this all to hell too.  Imagine all of the additional investments it will require for us to have cooler looking ski boots and bindings on our fat skis.  All new jigs for starters...  Boot fitting will change dramatically.  I'm guessing that without the foot placed precariously over a 2.5" plank and instead over a typical sized boot sole a lot of professional boot fitting would become unnecessary.  Might still be some canting involved though..

I thought this thread was a fantasy about wider boots and bindings preforming better on wider skis, now you've extended the fantasy to include barely needing a professional boot fitter just by making the sole plate wider.popcorn.gif

post #23 of 83

I'll bite. 

 

Quote:
Originally Posted by SierraJim View Post

 

 

In all this talk of improved performance.....what performance factor(s) do ya'll think are going to get better?

SJ

 

 

Improved, smoother  lateral modulation prior to full edge engagement without requiring front-to-back pressure shift as sidecut-based modulation requires. 

 

 

Overall maximum leverage onto the edge is a bit of a pink-tinted kipper here - we've had superb leverage for decades, along with the chattering skids that come from reg'lar humans being unable to finesse that  leverage. 

 

The other part of "improved performance" comes from the answer to the puzzler here:

 

 

 

Quote:
Originally Posted by SierraJim View Post


. If the binding is mounted to a DeFlex....the system is as rigid at the edges as it is at the point of fixation. OTH....if the baseplate of the binding is flexible (plastic) then any additional leverage generated by a baseplate outboard of the screw holes is suspect.
 

 

Putting the boot down on (or in) the ski makes the system rigid at the edges also, without having to put  I-beams from the points of fixation to the edges.

 

 

The overall balance of the thought experiment therefore comes to:   Improved early modulation and some recompense for lost maximal leverage through a gain in system rigidity.


Edited by cantunamunch - 8/22/12 at 8:35am
post #24 of 83
Thread Starter 

No time for a detailed response right now. But reading this I am 100% sure that this is a  real issue. Why? Because the same people who pooh-poohed modern ski designs and sizes a few years ago are poking fun at this topic. Go find the discussions on rocker from 2007-2010ish and the almost the exact same sorts of pretty much mocking comments were made. Does anyone doubt that understanding rocker, taper and camber better has vastly improved the sport? If so, please speak up so we can calibrate your responses here...

 

Does anyone doubt that by relaxing engineering constraints, there are virtually always ways to change performance or cost? As noted, a different boot sole structure would not hurt either.

 

Oh yeah - also interesting that the only person I know on this thread who designs and build skis for a living today is not making fun of the notion of tweaking the bindings and interfaces... wink.gif

post #25 of 83

Did the ski shops tell folks how great shaped skis were going to be while their inventories were still filled up with straight skis?rolleyes.gif

post #26 of 83
Quote:
Originally Posted by DanoT View Post

I thought this thread was a fantasy about wider boots and bindings preforming better on wider skis, now you've extended the fantasy to include barely needing a professional boot fitter just by making the sole plate wider.popcorn.gif


What % of professional boot fitting goes in to snowboard boots?th_dunno-1[1].gif

post #27 of 83

  Saying that retailers are trying to hold back progress and performance at the risk of distressed merchandise or having to buy another jig is beyond laughable. 

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post #28 of 83

I'll echo what SJ is saying in that wider bindings might allow a manufacture different material/manufacturing options and possible weight/strength-durability benefits to skiers and possibly easier to mount and service designs for techs and shops.  Kind of like road bike stems, non?

post #29 of 83

the part that you have correct is that this thread is a fantasy, oh just call me mr bucket of cold water..........forcing you guys to actually think about what you are wishing for, without regard to mathematics, physics, scientific methodology, and logic.

 

the stuff you need to prove your fantasy is reality is all available at your local hardware store. buy it, build it, patent it, test it, and prove your theories. when finished sell your designs to this sleepy controlling ski industry that cannot help but trip over itself and get rich beyond your dreams!!!!

 

please keep the bears posted as to how your r & d is coming along. i would like to volunteer as a product tester for your new " low ride/wide ride comfy" boots and "extra wide ride" bindings when the prototypes are available.

 

and another thing......... improvements in product design and manufacturing are the best possible scenario for ski retailers to stay healthy. as a ski retailer we are always on the lookout for products that make a difference to the end users experience. however supporting change based on rumor and innuendo is a sure fire way to continue to dumb down the ski industry, as well as drive committed skiers to other ways to spend their leisure dollars. you can only rip consumers off with stuff that does not work so many times. although that being said, it seems that some of you wishers are asking to get ripped off a lot ( "please sir , may i have another" ). after a while even fools realize that they look stupid pumping up their ski boots with air.

 

here are a few emoticons to prove that i am laughing on the inside wink.gif biggrin.gif smile.gif beercheer.gif

 

jim

Bringing World Cup caliber ski equipment and service to all skiers - from pro ski racers to everyday all mountain skiers and into the...

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post #30 of 83

 

 

Ya'll should keep in mind that I'm not pooh-poohing anything......I'm asking what you think you'll get and how you think you'll get it.

 

Quote:

Originally Posted by cantunamunch View Post

I'll bite. 

 

 

 

Improved, smoother  lateral modulation prior to full edge engagement without requiring front-to-back pressure shift as sidecut-based modulation requires.

 

So.....does this smoother lateral modulation come from less leverage?

 

 

Overall maximum leverage onto the edge is a bit of a pink-tinted kipper here - we've had superb leverage for decades, along with the chattering skids that come from reg'lar humans being unable to finesse that  leverage.

 

Of course, and this then refers back to the above.....

 

The other part of "improved performance" comes from the answer to the puzzler here:

 

 

 

 

Putting the boot down on (or in) the ski makes the system rigid at the edges also, without having to put  I-beams from the points of fixation to the edges.

 

So again........what do you want?.....less or more? and if this is benefit for wider skis why has it not succeeded on a wide scale? (it has been done....btw)

 

 

The overall balance of the thought experiment therefore comes to:   Improved early modulation and some recompense for lost maximal leverage through a gain in system rigidity.

 

So.....you get better early modulation through less leverage............but then you want to gain it back through a more rigid coupling?

 

I'm debunking anyone's dream weaving here. Ya'll are doing a great job debunking yourselves. I'm trying to point out that ya'll are asking for different and often opposite things all at the same time.

 

For example...............

 

You want smoother lateral modulation? OK.....easy enough. You put the binding flat on the ski with very little lift and thus get less power and smoother transition. (done deal...nothing new here)

OR........you tune your ski a little differently......OR you go for a binding with a softer coupling. All these things can be easily done or undone if you choose.

But then you want a more rigid system.....why?......to get more power back and to compensate for lost leverage? Basically to undo what you just did.

BTW..........On the subject of a more rigid boot sole. That has been done to death for decades and always falls off the map everytime it has been tried. (why?)

BTBTW......If what you think you want is a more rigid boot sole, making it wider is not the way to go about it. (what is more rigid in torsion.....a 2X4 or a 2X8?)

BTBTBTW. How do ya'll think think that changing beam and/or torsional flex of the entire ski compares to trying to modulate performance by manipulating about 20% of the structure?

 

So.....ya'll are beating the drum for the entire ski industry to change direction to accomplish a goal that you can't identify or that is contradictory. What is it you want? You all don't even seem to know. And remember.....all this can (and is) being done right now, equally or more effectively with the components and techniques that we already have.

 

Now.......about them Flux Capacitors......now there's something worth talkin' about.

 

SJ

Bringing World Cup caliber ski equipment and service to all skiers - from pro ski racers to everyday all mountain skiers and into the...

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