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Pitfalls of setting 9.5 DIN on Rossignol fks (turntable heel) bindings, DIN 3 -10

post #1 of 17
Thread Starter 

 

 

 

 

 

 

Just wondering has anyone here done something like this?  I brought a pair of new fks bindings, old stock I presumed. The reason is that the bindings have all metal construction (metal toe), narrow brake, and cheap.  I assume that a DIN 3-10 bindings will be lighter than one with higher DIN values. I googled, and somebody said that setting DIN value close to maximum will decrease the useful life of a pair of bindings.  My question is how much sooner will the metal springs die on me?  I will be perfectly happy if this pair of bindings will last a few years, and I will dial the DIN down to 3 during off season.Thanks.

post #2 of 17

There are a lot of old wives tales out there about bindings but it happens this is not one of those. The more compression you have on the springs, the less life they will have. However, your plan of backing down the tension will help and IAC.....you should get plenty of service from them.

 

Interestingly, one thing that is in fact an OWT is that bindings don't function well near the top of their scale. In most cases, this is false. The reason is that the springs themselves are not fully compressed at the high end of the release value scale. Rather, the adjustment screw has a "stop" on it that keeps one from turning the adjustment screw to full spring compression. That stop is usually machined into the housing and is then adjusted or tuned with spacers. This is how bindings are calibrated at the factory. Even at the end of the adjustment screw travel, there is usually plenty of available compression in the spring and hence, plenty of elastic travel. This is particularly true for the various iterations of LOOK/Rossi bindings in both the FKS and Newer PX variants. 

 

SJ

post #3 of 17

The creep of the spring within usable range should last the lifetime of the product. In engineering product development, when I did it, we would always test these things and atleast double if not triple the requirement of the product lifetime (for a product that is supposed to last 10 years, we would test it out to 20-30yrs using heat to decrease shelf testing duration or cycling of the product.

 

I would not worry about it, and would not dial back the compression/tension during the offseason.

 

They'll be fine.

 

post #4 of 17
Thread Starter 

Thank you


 

post #5 of 17

You could set that binding at 10, and the springs would still outlast it's standing on the indemnified list.

post #6 of 17

I don't recall a "recent" FKS that is a 3-10 DIN, 4-12, yes but not 3-10..especially an "all metal" one. 

post #7 of 17
Thread Starter 
Quote:
Originally Posted by Philpug View Post

I don't recall a "recent" FKS that is a 3-10 DIN, 4-12, yes but not 3-10..especially an "all metal" one. 



I am pretty sure that they are not "recent".  But seller is a ski dealer and bindings are sold as "new".  Here is another available auction:

 

http://cgi.ebay.com/Rossignol-FKS-pivot-heel-3-10DIN-Ski-bindings-purple-bl-/330536908898?pt=LH_DefaultDomain_0&hash=item4cf588f862

 

I gave him an offer that he did not refuse and I bought an earlier lot.

 

 

Anyone can figure out what year/vintage these bindings were made?


Edited by agent.5 - 3/2/11 at 10:24am
post #8 of 17
Quote:
Originally Posted by agent.5 View Post





I am pretty sure that they are not "recent".  But seller is a ski dealer and bindings are sold as "new".  Here is another available auction:

 

http://cgi.ebay.com/Rossignol-FKS-pivot-heel-3-10DIN-Ski-bindings-purple-bl-/330536908898?pt=LH_DefaultDomain_0&hash=item4cf588f862

 

I gave him an offer that he did not refuse and I bought an earlier lot.

 

 

Anyone can figure out what year/vintage these bindings were made?


Oh, THAT FKS. ;) These are late 90's vintage FKS's. If you turn the toe piece over you will see a circle with a date, 2 numbers with an arrow pointing to months. My guess would be 98 or so. These are the GEZE toes (Rossignol bought Geze) with the Look heels. As I mentioned the 10 DIN were not "all metal". not that they are bad, it is a good binding but as the ad says it is for a 80mm or narrower ski, the brake can be streeeched for a wider ski but not replaced. 

 

post #9 of 17

yikes! 1998?  that makes me scared. dunno what the expected lifetime of a binding is, but i bet this is past or close to it. Best of luck with the binding holding up.

post #10 of 17
Quote:
Originally Posted by shoal007 View Post

yikes! 1998?  that makes me scared. dunno what the expected lifetime of a binding is, but i bet this is past or close to it. Best of luck with the binding holding up.



I was generous with the 98...I just checked the 3 pair that I have, 2 are 95 and the other pair are 96. 

post #11 of 17

Unless a steel spring is worked to extremes, it has a very stable consistant performance. You can't stess a binding spring that much without removing it from the binding.  (We used to do that, stretch Look springs to make them as stiff as race stock).  No need to worry about the 9.5, or to loosen it over the summer.

 

Any plastic in the binding is another story.  It definitely breaks down with age.

post #12 of 17

For what it is worth, these are basically the same binding.... Heel exploding

 

Some of these bindings we are playing "Russian Roulette" with. Anything over 10 years old, I wouldn't use unless they are metal. 

post #13 of 17
Thread Starter 

opps! I bought myself a time bomb.  I will call and return the bindings then.

 

post #14 of 17
Quote:
Originally Posted by agent.5 View Post

opps! I bought myself a time bomb.  I will call and return the bindings then.

 



If you were running a low DIN in these, I would say... they should be fine, but either way,if you are skiing a 9.5, you should be on a beefier binding anyway. Find some either Z-Racings or FKS15's. 

post #15 of 17
Thread Starter 

Thanks Philpug, will continue my search of a suitable fks, with narrow brakes.


 

post #16 of 17

The new Look Pivot14's are now available with a narrow brake. 

post #17 of 17
Thread Starter 
Quote:
Originally Posted by Philpug View Post

The new Look Pivot14's are now available with a narrow brake. 



thanks.

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EpicSki › The Barking Bear Forums › On the Snow (Skiing Forums) › Ski Gear Discussion › Pitfalls of setting 9.5 DIN on Rossignol fks (turntable heel) bindings, DIN 3 -10