New Posts  All Forums:Forum Nav:

Binding delta question

post #1 of 5
Thread Starter 

Hi all, I'm looking for some ideas/thoughts/intelligence on this issue: could a difference in binding delta of only 2mm over a boot BSL of 306 cause a lot of difference in my skiing? 

I have a pair of NOS Dynastar Cross Ti's that I have only skied 2-3 times.  I also have a pair of Scott Crusades w/EPS demo bindings on them.  The Scott bindings appear to have 0 delta, and I like the way the ski skis.  It hooks up quickly and surely and the tips feel directly connected.  OTOH, the Dynastars (which should be quicker and more direct since they're narrower and have a short radius) feel vague, disconnected, and slow to hook up.  The bindings are the Look PX12 system binding.  I tried sticking a pad under my toe binding and it seemed like the feel improved. 

 

Is this my imagination?  Could there be other reasons?  Do I just need to get more forward regardless?  I haven't tuned the Dynastars; is it possibly a tuning issue with new skis?  Any thoughts?  The reson I'm pursuing delta is b/c I had this same issue/question w/my Dynastar 4x4's with the same binding.


It's pretty clear that changing delta on the system bindings will be hard-to-impossible, so I'm wondering if 2mm could possibly be responsible or if I should look elsewhere (like my technique, god forbid!).

post #2 of 5

Yes, it could impact your feelings of the ski, but so can the binding mount position on the ski (and usually much more so).  There are a lot of variables at play here with two such different skis.

post #3 of 5

Three years ago I dropped my boot size by almost 10mm.  My Fischer WC SCs had standard (i.e. not easily adjustable) bindings on a race plate.  I asked a shop to move the whole assembly forward and they just did a heel slide, thinking they were saving me money (grr...).  I didn't ski these skis much for the next couple of years as they felt really short - which the sort of are - and felt like they couldn't grip.  I posted a question about these skis earlier this year.  I bought my own drill bit and decided to give it a go.  I unscrewed the front piece which was connected to the rear by a flat piece of metal with notches.  I moved it back one notch - a few mm's at most.  This basically my boot from a bit ahead of the factory marked center to a bit behind.

 

The difference?  Night and day.  The skis, while only 160cm slalom-lite skis, felt much more substantial and hooked up on icy terrain much better.  I basically feel like I got a free pair of groomer and bump skis via the purchase of a drill bit (used one from Tognar where you can't mess up the depth - plus on a race plate = really easy).

 

So to answer your question, yes, every mm can matter.

post #4 of 5
Thread Starter 

Thanks goldsbar, although your experience is about binding placement rather than delta.  I'm also considering this.  I find it interesting that you essentially moved your boot BACK, when it would seem like moving the binding FORWARD would help you hook-up more quickly and grip better  (at least that's what I've always taken away from binding mount questions).  Hmmmmmm....

post #5 of 5
Quote:
Originally Posted by tch View Post

Thanks goldsbar, although your experience is about binding placement rather than delta.  I'm also considering this.  I find it interesting that you essentially moved your boot BACK, when it would seem like moving the binding FORWARD would help you hook-up more quickly and grip better  (at least that's what I've always taken away from binding mount questions).  Hmmmmmm....

 

He moved the toes back because the shop had moved only the heels forward. I'm not sure I'd say the shop was in the long or being lazy - after all, if you are using a 4.1mm bit to drill holes that are only 5mm apart, the holes are gonna be awfully close.

 

I feel like for me delta is much more noticeable than a little bit of fore-aft. You can definitely feel 2mm of delta. First thing you need to do is figure out how much delta you actually have. Measure the thickness from the base of the ski to where the boot contacts the binding. Subtract the toe from the heel to see how much delta you have. Those Dynastars aren't going to adjust, but you can probably shim the Scotts. So you could lift the toes of your boots and then lift the heels of the Scotts to make them all match.

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: General Skiing Discussion