Skis Boots Bindings


Lightest BINDINGS for ski mountaineering and rando racing – comparison:

This page compares:

  • 22 lightest bindings that are suitable for light ski mountaineering and rando racing, and are currently on the market
  • all under 200g (we believe all weights are provided without screws)
  • technical specs (weight…) are from manufacturers’ websites and other official sources
  • ISMF approved – binding does or does not comply with 2013/14 rules governed by the International Ski Mountaineering Federation (PDF of full 2013/14 rules)
  • under ISMF 2013/14 rules lowest legal weight for a ski + binding (half pair)  is 750g for men and 700g for women
  • price shows a range in US Dollars in which you are most likely to find that product priced within

» Last update on January 8, 2014.

This page will be updated as new models are released or whenever you suggest a ski in comments below or via email (please include a link).

If you find any mistakes please report them - comments below or via email (include your source’s link).

* The page is administered by Stano Faban and Jonathan Shefftz.

  ATK Race Revolution binding ATK Race Revolution R binding ATK Race SL World Cup binding ATK Race SL-R World Cup binding
Model Revolution World Cup Revolution-R World Cup SL World Cup SL-R World Cup
Weight / Foot 103g 108g 114g 117g
ISMF approved Yes Yes Yes Yes
Crampon attachment No Yes (integrated) No Yes (integrated)
Size adjustable (mm) numerous adjustment plates available numerous adjustment plates available numerous adjustment plates available numerous adjustment plates available
Price $520-570 $520-570 $520-570 $520-570
Note heel allows boot-on-the-ski position; appears identical to SL other than modified toe lever heel allows boot-on-the-ski position; appears identical to SL-R other than modified toe lever heel allows boot-on-the-ski position heel allows boot-on-the-ski position
Buy at        




ATK RT binding La Sportiva RT binding Dynafit Low Tech Race binding Dynafit Low Tech Radical binding
Brand ATK / La Sportiva Dynafit Dynafit
Model RT Low Tech Race Low Tech Radical
Weight / Foot 170g / 175g 115g 185g
ISMF approved Yes Yes Yes
Crampon attachment Yes (integrated) Yes (removable) Yes (integrated)
Size adjustable (mm) numerous adjustment plates available 30 toe and 30 heel plates 30 toe and 30 heel plates
Price $650-750 $750-850 $400-500
Note still produced by ATK but no longer rebranded by La Sportiva;
adjustable 5-10 release; 4 different optional heel elevators available
titanium heel fork; there seems to be auto-lock and manual-lock version of this binding, check before you buy consists of Speed Radical toe + Low Tech Race heel with steel fork
Buy at  




Dynafit TLT Speed Superlight Hagan ZR binding Kreuzspitze binding La Sportiva RSR bindings
Brand Dynafit Hagan Kreuzspitze La Sportiva
Model TLT Speed Superlite ZR Snow Crab toe + Trofeo heel RSR
Weight / Foot 185g 117g 128g 145g
ISMF approved Yes Yes - Yes
Crampon attachment Yes (removable) Yes (integrated) Yes (removable) Yes (integrated)
Size adjustable (mm) 30 toe and 30 heel plates numerous adjustment plates available 14, 18, 40 plates 30 heel plate
Price $500-600 $600 - $750-850
Note adjustable 5-10 release (with toe & heel values linked); 2 elevator heights heel allows boot-on-the-ski position -  
Buy at


  Maruelli M2 race bindings Maruelli M1 race bindings Maruelli M1 + M2 bindings PHK Race bindings
Brand Maruelli Maruelli Maruelli PHK
Model M2 M1 M1 toe + M2 heel Race
Weight / Foot 48-56g 110g 90g 135g / 140g
ISMF approved Yes Yes Yes -
Crampon attachment No Yes (optional) Yes (optional) Yes (removable)
Size adjustable (mm) if used w/ Maruelli walking plate - if used w/ Maruelli walking plate 40 heel plate
Price $650-700 $550-600 $850-900 -
Note 3 slightly different models, their suggested use by the manufacturer is for vertical races and easy skiing, for people less than 75-80kg (165-176 lbs). Suggested use by the manufacturer is for people less than 75kg (165 lbs). Suggested use by the manufacturer is for vertical races and easy skiing, for people less than 75kg (165 lbs). PHK recommends this binding for users less than 70kg (154 lbs) max. Lighter version has titanium as opposed to steel springs.
Buy at        


  Pierre Gignoux Pack Ultimate 2 Plum Race 135 / 145 bindings Plum Race 165 Plum 185
Brand Pierre Gignoux Plum Plum Plum
Model Pack Ultimate 2 Race 135 / 145 Race 165 Race 185
Weight / Foot 75g 135g / 145g 165g 185g
ISMF approved Yes Yes Yes Yes
Crampon attachment No Yes (removable) Yes (removable) Yes (removable)
Size adjustable (mm) No 2, 3, 4, 40 20 heel plate (integrated) 40 heel plate (included)
Price $2500 (with Morpho 400 boots) $650-750 $650-750 $700-800
Note price/package includes Morpho 400 Ultimate boots as the binding is not compatible with other Tech boots Plum recommends the 135 model for users less than 75kg (165 lbs); 40mm heel track plus offset heels of 2, 3, or 4mm adjustment plate is integrated slightly lower heel height to account for plate
Buy at 135 -  
    145 -  


  Ski Trab TR Race Ski Trab TR Race    
Brand Ski Trab Ski Trab    
Model TR-Race TR-Race Adjustable heel    
Weight / Foot 132g 179g    
ISMF approved Yes Yes    
Crampon attachment Yes (optional) Yes (optional)    
Size adjustable (mm) No integrated heel plate (unspecified length, likely around 20)    
Price $500-600 $550-650    
Note - TR-Race Adjustable heel +
TR-Race toe
Buy at    



  1. Very interesting! Thank you Stano!

  2. That is correct Jonathan! Will be interesting to see further development in this story.

  3. So if you can’t beat ‘em, join ‘em — or rather, rebadge them: the PG Ultimate boot and Morpho boot will be rebranded by Dynafit for next season!

  4. Peter, in my opinion they better change/simplify rules they cannot or don’t plan on enforcing. As if anyone was ever going to measure that binding-boot gap :)

    And then I see a change about outside help – seems like now it is legal to receive outside help in terms of a broken ski or a pole, you can receive it from anyone and anywhere! That is a bit strange since you can end up skiing on unsafe equipment which the rules are trying to avoid :)

  5. just got that email from dD and what I noticed is that they have changed the binding rule AGAIN. They took out the 4mm gap, requirements for ski leashes, and have used less ambiguous wording regarding lateral release.

    “ The front part must have a release system that allows the lateral exit of the boot from the rear

    part of the binding. The front release system must have a lockable and un-lockable position. ”

    My Dynafit lo-tech autos are still on the white list, and it appears they have updated the downloadable regulations to the 2013-14 version. So I’m not sure if anything really changed.

  6. I answered my own question with the purchase of the Trab Race adjustable: The whole heel piece turns to give you a flat mode. And the heel piece moves a full 3cm, for what it’s worth…

  7. Jed, from what I know I don’t think any of these have a “flat mode”. However, the heel posts are so low that if you have a flexible enough boot (nice ankle movement) you won’t need a flat mode. But I understand your concern. My problem is that for some spring touring it would be nice if I could have a higher post ;)

  8. Excellent list! Another question: This one about heel lifts, and it’s not what you’d expect. Do any of these light bindings allow one to go “flat on ski”? For mellower touring? I’m in no need of stilettos, but being able to go flat would be nice for sections…

  9. And a whole bunch of new Maruelli M2 toe and heel variations, seems all toes have “2 safety positions” = full ISMF toe releasability?
    Price is now a whopping 500 euro incl VAT.
    You need the traditional 70g m1 toe for downhill races.
    m1 toe + m2 heel = 90g and the combo is ISMF approved for downhill?
    Maruelli is answering questions.
    M2 only for vertical races and seems to take a sweet minute to get in and out of, you are actually hand screwing one of the pins in to your outer boot insert?

  10. hey everybody!

    Brand spanking new Gignoux Ultimate 2 with ISMF toe releasability: (also has Morpho 400g boot closeups)

  11. Thanks Jonathan, will fix the price right away.
    It seemed very low at 200 Euros for such a binding. 300 is seems more realistic.

  12. Maruelli’s website is now updated for both the M2 and M1-FR … as well as for a 50% price increase in the previously published price for the M2.

  13. Updated the bindings’ notes – Plum 135 and both PHK bindings are recommended for maximum 70kg (154 lbs) users. This should be the racer’s weight including anything he or she wears/carries above the bindings (boots, backpack…), I would imagine.
    However, this does not mean other bindings have or don’t have such “restrictions”. It simply means that Plum and PHK are doing us a good services of letting us know.

  14. I’m pretty sure that the 70g split is for the Plum 135 vs 145, and is in reference to the lower effective forward release values for the Plum 135 Ti heel fork. (Lateral release values are the same for both bindings.) However, since Ti is stronger than steel, if anything the 135 would be more reliable for a heavier skier, although the 135 heel pins do become notched over time leading to some rattling (but they are replaceable).
    The same is probably true of the Dynafit Low Tech race with its Ti heel fork vs the Dynafit Low Tech Radical.

  15. Hi James, good question.
    During the research I noticed that some had notices about person’s weight. I will go back, collect the info and put it in the notes.
    From some that I recall there seem to be 70kg “threshold” that is common – that means that even me would be above, heck, the whole Canadian men’s team would be above :)

  16. james minifie says:

    Great stuff Stan. One question though. Since many people are choosing to use these bindings for other mountain objectives other than racing, are there any indications that any of the models have user weight restrictions. For example, some light race-oriented mountain bike components have weight restrictions (pedals, wheels, tires). As you know, I am a bigger guy but I still like to move fast through the mountains!!!!!

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