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Trimming/cutting the tops of the shells on race boots - what does it achieve?

post #1 of 6
Thread Starter 

Many race boots nowadays appear to have some cut markings near the tops of the shells - the inner leaf, that is closest to the shin/tongue. Cutting the top 1-2 cm will effectively lower the front of the shell.

 

What exactly is the effect of cutting or not cutting the plastic there? Why would one choose to do it or not?

 

Of course, you can say "try it". The problem is, obviously, that once you cut it ... there is no more "trying" - it's done for good :-)

 

If I am not mistaken, some Dalbello Scorpion models come with the opposite, i.e. a "build up" plastic plate that you can attach to the front, but I don't have these. Nordica, Lange, Head (?) etc just have cut markings.

 

Thanks!

post #2 of 6

as in another thread about cutting boots for flex Jim Schaffner expains it very well here....https://www.youtube.com/watch?v=8hUwND4cMK4&list=PLzAX1hV85KGqcINEENj006a3QJkSnZjU0

post #3 of 6
Thread Starter 

Thanks! It is a very nice resource indeed, as much as I don't like watching videos :-)

 

It does however only briefly mention the top-front shell trimming issue and it dwells more on "how to" rather than on "why".

post #4 of 6

it is about tuning the boot to the individual, some people just like a lower boot cuff or prefer to get the power strap under the shell (this can help with doing that) but as you said it is a once done cannot be returned type of adjustment

 

is there a reason that you want to do it? 

post #5 of 6
Thread Starter 

No, there is no clear reason to do it yet, but then how do I know what I like best, if I have not tried it both ways :-)

 

I also notice that my old Nordica Dobermann 130s were a bit lower at the front than these Langes - and they skied just fine. And those Dobs also had a cut mark, which I didn't use. And they were a bit taller than the previous generation of Dobs (c.a. 2007) ...

 

So there seems to be this progression of the cuff getting ever taller ... just like the last century :-) I am wondering when they are going to be too tall.

post #6 of 6

A taller tongue/shell spreads the loading of the shin over a longer/bigger area, a shorter one concentrates the loading into a smaller area---which would you prefer?

 

If you lower the shell in front of the tongue you will be able to bend more of the top of the soft part of the tongue----might be a good thing---might not.

 

Flexing a boot has more to do with where your center of mass is riding over the boot sole---If it (COM) is in front of the boot sole center, then you will flex the boot with G forces and body weight.

 

If COM is behind the boot sole center then you will try to bend the boot with muscle power, (which you sorely lack, since the dorsi flexors are much smaller than the gastroc muscles ).

 

So, if the boot seems to need to be softer flexing, then perhaps the is a fore/aft balance problem lurking some where in the boot set up.

 

mike

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