LANGE - How to ajust the skiboot FLEX - FAQ | Lange -

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How to adjust the ski Boot flex

Flex

The “flex” of a boot indicates the level of support that boot will deliver. The greater (stiffer) the flex index, the more rigid and reactive the boot will be. The lesser (softer) the flex index, the more tolerant and comfortable.

The choice of flex is crucial to the performance each boot will deliver and is selected based on the skier level, the discipline and the weight of the skier. 

-          A flex from 50 to 60 is designed for junior skiers.

-          A flex from 70 to 80 is designed for intermediate skiers.

-          A flex from 100 to 120 is designed for sport skiers (intermediate to advanced).

-          A flex from 130 to 160 is designed for expert skiers.

Warning:

-          Too stiff or rigid of a flex can limit a skier’s ability to progress.

-          Heavier and more powerful skiers should select a boot with a higher flex index.

Practice / Usage

It is important to choose the appropriate model of boot that best adapts to your usage. Needs will vary based on your style, type and level of skiing.

-        Resort and all mountain sport: LX range (comfort)

-        Resort and all mountain performance: RX range (performance)

-        RACE: RS range

-        Freeride freerando: XT3 range

-        Ski touring / Freetouring: XT3 Tour range

Two methods will allow you to adjust the flex of your boots

Method 1:

Removing Rear-Cuff Screws and Replace with Supplied Clips

 To reduce flex by 6%, remove the top rear-cuff screw of each boot with a 3mm key and insert clip (supplied with boots) in its place.
Push the clip in and tap with a hammer.

To reduce flex by12%, remove the bottom rear-cuff screw of each boot with a 3mm key and insert clips (supplied with boots) in their place.
Push the clips in and tap with a hammer.

To reduce flex by 20%, remove both the rear-cuff screws of each boot with a 3mm key and insert clips (supplied with boots) in their place.
Push the clips in and tap with a hammer.

Method 2:

Adjusting Single Rear-Cuff Rivet

With a 4mm key, turn the rivet to the left to reduce the flex or to the right to increase it.