or Connect
EpicSki › The Barking Bear Forums › On the Snow (Skiing Forums) › Ski Gear Discussion › Advice on some bindings please
New Posts  All Forums:Forum Nav:

Advice on some bindings please

post #1 of 8
Thread Starter 

Hi

 

Can someone please give me some advice.

 

I am looking at buying some used 2011 Atomic Bent Chetlers. they are fitted with Atomic FFG bindings (din 6 -14). I am told they are mounted for boot length 310mm, mondo 26 shell with "some adjustment either way"

 

My boots are 315mm, 27/27.5. will they fit or will I have to re-mount bindings? 

 

This is probably a stupid question but I am no expert on the mechanics of skis ... as you can probably see

 

If you want to look at the skis for sale :

 

http://www.ebay.co.uk/itm/Atomic-bent-chetler-bentchetler-skis-183-powder-freeride-twin-tip-fat-/171190509732?pt=UK_SportsLeisure_Skiing_Skis_JN&hash=item27dbbfe0a4

 

Any concerns about the scratch?  Thanks for any comments

post #2 of 8

Well the difference in boot sole length is 5mm. So provided "some adjustment" is at least 5mm you will be ok. Assuming that they were mounted for a boot sole length of 310mm with the binding adjustment approx. in the middle of its travel (which is what most technicians do), there will be at least 5mm available.

 

You will end up very slightly further back relative to the midpoint of the ski by approximately half the difference in boot sole length (2.5mm). This shouldn't be too big a deal and given that you are asking some fairly basic questions at this stage, I think that kind of fine tuning issue can be left for some point in the future.

 

As the advertiser says, the scratch doesn't seem to have gone down to the core, so it shouldn't be a major problem.

 

Mark

post #3 of 8
Thread Starter 

Thanks Mark, and the bit about 26 versus 27/27.5, what does that mean - sorry to be such a noob

post #4 of 8

Ski boots have two sizes. The internal size concerns the shoe size of the foot which the boot fits. This is usually specified on the so-called "mondo" scale. Mondo 26 means a foot length of 260mm, mondo 27 a foot length of 270mm and so on.

 

The external size "boot sole length" concerns the length of the boot from the toe piece to the heel piece. It's usually written in mm in fairly small figures on the side of the boot near the heel piece. This length determines the boot/binding interface - i.e. the distance between the toe and heel bindings needs to be adjusted to fit the length of the boot. Be aware though that the distance the bindings should be set to will NOT be exactly the same number of millimeters. That's because the bindings have springs in them so that binding contact is maintained even as the ski flexes.

 

There is obviously a rough relationship between boot sole length and shoe size, but depending on the exact model and construction there is sometimes a few mm difference.

 

Assuming you buy the skis you will need to make two basic adjustments. Firstly the heel piece will need to be adjusted back to allow for your slightly longer boot length, whilst still achieving the right spring pressure (so-called forward pressure). Then you will need to adjust the release force (so-called DIN). You can see what this is set to in the little scales you will find on both the front and rear bindings. The setting of that depends on various factors including your weight, boot size and skiing ability level. Making both of these adjustments correctly is critical to both function and safety and I would advise you to get some help, either from a friend who is knowledgeable about these things or go in to a ski workshop and ask them to make th adjustment for you. They might charge you a small fee, but a broken leg is a lot more painful and expensive....

 

Mark

post #5 of 8
Thread Starter 

Thanks Mark, really appreciate you taking the time to explain that to me. Don't worry I was always planning to get a ski shop to reset bindings but just wanted to understand what all the numbers meant. Hopefully I will get these Atomics, planning a trip to Revelstoke in January......

post #6 of 8
Quote:
Originally Posted by ant1 View Post
 

Thanks Mark, really appreciate you taking the time to explain that to me. Don't worry I was always planning to get a ski shop to reset bindings but just wanted to understand what all the numbers meant. Hopefully I will get these Atomics, planning a trip to Revelstoke in January......

 

I would be amazed if the bindings couldn't adjust out to fit 5mm difference in BSL. That would only happen if the mounter screwed up and didn't drill the binding with the adjustment set to the middle of its travel, OR these skis have already changed owners and the boots it was drilled for were even smaller.

 

99.9% of skiers will not notice a difference in ski handing from the boot center getting moved by 2 mm. In fact, I'm not sure how many shops will get the bindings mounted within 2MM of eachother- 2mm is about the tip of a pen. The skiers that claim they can feel a difference are probably full of it.

 

Even if this becomes a freak chance where they don't fit, a remount is not that big of a deal.

 

I would be slightly wary about the guy talking about using them in the park, landing switch, etc. Park skiing can be a but rougher on skis than normal off-piste use, but my concern would really be the state of tune. Park skiers will commonly detune the edges of the ski to keep the ski edge from grabbing rails, and even if they don't, rails will quickly dull the edges pretty good.

 

If I bought these skis I would ask about the state of the edges "Have the ever been detuned? How often were they railed?" and would also plan on investing in a tune.

post #7 of 8
Quote:
Originally Posted by ant1 View Post
 

Thanks Mark, and the bit about 26 versus 27/27.5, what does that mean - sorry to be such a noob

If you are wondering why yours have two different mondo sizes--27 and 27.5, skis boots are built in full sizes--a 27 boot and a 27.5 boot have the same outer shell but the 27 has a smaller liner. 

post #8 of 8
Thread Starter 

Thanks all, I have asked the question about railing etc, will let you know

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Ski Gear Discussion
EpicSki › The Barking Bear Forums › On the Snow (Skiing Forums) › Ski Gear Discussion › Advice on some bindings please