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'Pre-release" vs. DIN release settings. - Page 2

post #31 of 42

One aspect I am not sure has been mentioned is not having your downhill ski fully weighted.

 

If you have no or little weight on your ski in the belly there is a good chance the ski is going to ping off.

 

I do believe technique is a fairly large component of skis pinging off.

 

There are some folks who seem to release when they do not want to more consistently than others.

 

Smooth skiers bindings don't seem to release release unexpectedly.

 

this is similar to folks who bend skis.

 

I knew a reasonably small gal of about 115 lbs. who bent skis regularly.

 

When my son was a J3 he bent 7 pair in one season! go figure.

 

Hardware failure is one thing, Software issues I believe happen more often than realized.


Edited by Atomicman - 3/8/13 at 1:17pm
post #32 of 42
Thread Starter 
Quote:
Originally Posted by widluk View Post


What about the toe piece?  Is it possible to pre-release from too low DIN in the toe with the heel staying locked?

 

Release not "pre-release".   It looks like you were applying a lot of side pressure to the binding, in effect trying to twist your foot out of the boot.  So the toe may have released as designed to save you from a medial collateral ligament sprain.

 

Years ago, they encouraged a self test of the bindings, in effect muscling out of the binding by applying the forces to trigger the binding.  If you could not muscle you way out of the binding, the suggestion was to lower the DIN setting to match the release to your leg strength.

post #33 of 42
Quote:
Originally Posted by Arnoldtheskier View Post

Rare..but yes. Ty. RD series..390/490..when they had a few years on them were absolutley notorious for the tracks/bindings..interface..just corroding. Jamming.This led to no forward pressure.. Heel not opened in fall..hmmm..crank up the heel. Still happening.There was enough slop..as has been mentioned..that the toe of the boot moved sideways and exerted enough pressure at the right angle that it made it easier..and opened up the toe release. Crank up the toe and they stayed in. Cure=take the heelpiece out of the track. IF it..and the track were not so corroded they could be re-used..wirebrush,clean,re-grease.

Hmm, must be exposing to road salt.  My all-metal Tyrolia 490s have been performing flawlessly for the last 30 years or so.

post #34 of 42
As I mentioned in the other thread... my vote is that this particular release was mainly software related.

Skis being torqued and twisted on bumpy, hard, steep stuff w/ 80% of the vertical descent straight down the fall line and perpendicular to the ski edge = release, not pre-release.

Reduce the release-related loads by making turns with smooth/consistent edge engagement and transitions to/from base and there wouldn't have been a release.

Easier said than done. But that's also why people are wise not to tackle certain things with certain levels of fatigue, skill level, or equipment.
post #35 of 42

Probablly the materials used in those bindings were much more prone to rot from salt than other bindings.

I just did not see it to that extent on any other bindings. Sure..I did see it on other bindings..nowhere near as bad..or often.

I'ld see someone bringing a pair of skis with those bindings on..and I would know what the problem was.

They were great bindings! NO issues until they had a few years on them.And then IF they were taken care of..they lasted forever.

I still have some 390/490 RD's around here.

Man I fixed a lot of those things..I even had some that were so rotted I could not fix them!

I used to wonder whether it was the interface where the toothed adjustment track was..was where it started. There was a little metal tab..and a little tooth thinggy.

 

Magnesium transfer cases on 4x4 trucks.Those things..came out in 1998 or so..several years ago it was not uncommon to see them rotted out now. Driving down the road someone's 4x4 breaks down. No fluid in the transfer case..rotted..all the fluid leaked out.

post #36 of 42

Your making me scared to take my babies (208 SGs mounted with metal 490s) outeek.gif.  I guess I better have a good look inside first.  Then again, I like to live dangerously; maybe I'll just see if I can step out of them at a lower DIN.biggrin.gif

post #37 of 42

Ya Ghost..YOU with your knowledge of skis/skiing would let your equipment get into this state NOT! "Look inside" lol..when they are rotted on the outside..you do not need to look inside haha.

Where are you in Ontario? I am about 30min S and E of Blue. I often go about 30 min N and W too! Plus the odd time I go S and W down toward Guelph/Milton/Brantford.

Reason I am saying is that I have a nice set of 490RD's. Your name on them! (there are some 390 RD's too)

I am pretty much finished selling/shipping stuff for this season..for what these are worth..I don't feel like shipping them..

 

Post,message,email me..Arnoldtheskier..yahoo.ca, whatever ..if you want these.

post #38 of 42

I've only had one pre-release, and it was pretty damn scary. I'm still not quite sure what caused it, but snow might have played a role. Definitely a fluke and not a DIN issue (I run at 11 toe, 14 heel on original Dukes). Skied away with a bruised forearm and knee. Lucky or unlucky... depending on how you look at it...

 

post #39 of 42

^^^That was nuts. It looks like you were okay after the impact; so no major injuries from that?

post #40 of 42
Quote:
Originally Posted by Arnoldtheskier View Post

Ya Ghost..YOU with your knowledge of skis/skiing would let your equipment get into this state NOT! "Look inside" lol..when they are rotted on the outside..you do not need to look inside haha.

Where are you in Ontario? I am about 30min S and E of Blue. I often go about 30 min N and W too! Plus the odd time I go S and W down toward Guelph/Milton/Brantford.

Reason I am saying is that I have a nice set of 490RD's. Your name on them! (there are some 390 RD's too)

I am pretty much finished selling/shipping stuff for this season..for what these are worth..I don't feel like shipping them..

 

Post,message,email me..Arnoldtheskier..yahoo.ca, whatever ..if you want these.


Thanks, If I needed any bindings I would snap up those 490 RDs, but I'm good for now.

post #41 of 42
Quote:
Originally Posted by Brian Lindahl View Post

I've only had one pre-release, and it was pretty damn scary. I'm still not quite sure what caused it, but snow might have played a role. Definitely a fluke and not a DIN issue (I run at 11 toe, 14 heel on original Dukes). Skied away with a bruised forearm and knee. Lucky or unlucky... depending on how you look at it...

 


Almost looks like you weren't properly clicked in.  Maybe snow on boot and the binding locked down on back of the boot without the boot tab being low enough to be under the binding clamp (for lack of better words - I hope you know what I mean).  Or maybe you bud unclicked you as a joke (not funny though).   I love nice soft bendy trees; they are so much nicer than big un-moveable ones.

post #42 of 42

I had a Marker binding release as a result of just a scrape on a rock at the top of Patrolman's at Copper.  I slid nearly half the chute before I was able to self-arrest, and the ski continued another 1/2 mile and passed the rest of our group at the bottom.  Cgeib was good enough to continue spotting it as it sailed by.

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