Changing forward pressure due to temperature.

cultrara

Active member
While skiing the other day, I noticed that my boot was loose in the binding; I could wiggle my foot and the ski would rattle around.

I adjusted the forward pressure of the binding which solved the problem.

In my room today, I tried to put my boot into the binding and it wouldn't fit because the binding was too tight.

I think that the plastic of my boot expanded slightly because of the temperature increase. When I was skiing the temp was 5° F and in my room the temp is 70° F.

I also had problems with my bindings being too tight while I was at Mt Hood this summer, which is obviously warmer skiing than in mid January.

Has anyone ever experienced this problem?
 
I have never experienced that in the 14 years I have been skiing and Ive skied from -40 with windchill up to 80 and sunny. What kind of bindings were you using?
 
13612119:japanada said:
I have never experienced that in the 14 years I have been skiing and Ive skied from -40 with windchill up to 80 and sunny. What kind of bindings were you using?

The bindings are Axial 2s
 
13612132:cultrara said:
The bindings are Axial 2s

Hmm I know of bindings developing slop to the point they would move a notch or two forward or back on the track. Maybe it's time for a new set of bindings?
 
I have axial 2's I have used on warm summer days on the Whistler Glacier to -40+ mid EC winter...never had an issue.

Must be a problem with your binding. Temp shouldn't affect fit at all.
 
13612762:KravtZ said:
I have axial 2's I have used on warm summer days on the Whistler Glacier to -40+ mid EC winter...never had an issue.

Must be a problem with your binding. Temp shouldn't affect fit at all.

I don't think its an issue with my binding, I think its the plastic of my boot expanding and contracting
 
13612776:cultrara said:
I don't think its an issue with my binding, I think its the plastic of my boot expanding and contracting

Its not going to expand/contract enough to noticeably change your forward pressure.
 
13612813:Caucasian_Asian said:
Its not going to expand/contract enough to noticeably change your forward pressure.

That seems more plausible than my forward pressure somehow tightening itself.
 
I have always wondered about this. I think it is a legitimate thing, but im not an expert. Threads for when someone who knows what theyre talking about has an answer.
 
13614241:s-hand said:
I have always wondered about this. I think it is a legitimate thing, but im not an expert. Threads for when someone who knows what theyre talking about has an answer.

For as tight of standards boot and binding manufactures have to go through for compatibility and legality, there is no way I could see them knowingly releasing a product that changes sizes. Thats just asking for a lawsuit!

Also with the amount of people on Axials, this problem would have been noticed and addressed in the 10 years of that model being on market.

Do you always kick the snow off the boot by using the heel piece as a scraper?
 
13614269:japanada said:
For as tight of standards boot and binding manufactures have to go through for compatibility and legality, there is no way I could see them knowingly releasing a product that changes sizes. Thats just asking for a lawsuit!

Also with the amount of people on Axials, this problem would have been noticed and addressed in the 10 years of that model being on market.

Do you always kick the snow off the boot by using the heel piece as a scraper?

This isn't a problem with the binding. The binding is 100% fine.

Its the plastic of my boot that is potentially expanding.
 
13614690:cultrara said:
This isn't a problem with the binding. The binding is 100% fine.

Its the plastic of my boot that is potentially expanding.

Both bindings AND boots have to pass ISO din standards bud
 
13614930:KneeDrop said:
How old are your boots? I'm wondering if they'd pass inspection in a shop

Could be this, maybe toe or heel strikes are worn out..? Just seems unlikely that will all the industry wide safety standards your boots are made with plastic that contracts enough to fuck your forward pressure in a single day....also Ive worked in a shop for a couple years and never once had someone bring boots to my attention with this problem
 
Ya, never heard of this..

I'd be very interested in doing some tests with the equipment.

I may just do some with some older boots and axials we have in the shop
 
13614692:RudyGarmisch said:
Replicate this shit, go find a walk in freezer and film it.

Rowen I think I'll have to do that. I'll measure my BSL at room temperature and again at temps bellow freezing.

13614930:KneeDrop said:
How old are your boots? I'm wondering if they'd pass inspection in a shop

13614992:.boz said:
Could be this, maybe toe or heel strikes are worn out..? Just seems unlikely that will all the industry wide safety standards your boots are made with plastic that contracts enough to fuck your forward pressure in a single day....also Ive worked in a shop for a couple years and never once had someone bring boots to my attention with this problem

My toe and heel lugs are worn, so it could be related to that.

The reason I think its because of temperature is because each hot day I've skied I had to loosen the pressure and each cold day I had to tighten it.

If its a problem with worn heel and toe lugs, one would think that the adjustments would be random and not associated with the temp.
 
13615078:cultrara said:
If its a problem with worn heel and toe lugs, one would think that the adjustments would be random and not associated with the temp.

My guess would be, and no offense here, is that you dont know what youre doing when adjusting you binding. Axials are easy to set in between notches on the heel piece and then depending on your step in procedure, easy to knock forward or back.

Stupid question, youre not on demo axials?

What boots?

plastics in boots have only been getting more advanced since the 60s, no way this magical shrinking and expanding boot would just be isolated to you.
 
13616100:japanada said:
My guess would be, and no offense here, is that you dont know what youre doing when adjusting you binding. Axials are easy to set in between notches on the heel piece and then depending on your step in procedure, easy to knock forward or back.

Stupid question, youre not on demo axials?

What boots?

plastics in boots have only been getting more advanced since the 60s, no way this magical shrinking and expanding boot would just be isolated to you.

No offense taken. Its totally possible that I'm knocking the heel piece out between notches when I'm stepping in.

When I had my forward pressure adjusted, it was done by a shop tech at Sugarbush when I noticed the problem.

The bindings aren't demos. The boots are Head Adapt Edge 90s from 2013

head-adaptedge-90-ski-boots-2013-black-white.jpg
 
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