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Dynafit newbie question

post #1 of 16
Thread Starter 

I am transitioning from Fritschi to Dynafit touring bindings. Just had my first pair of TLT Comforts installed... and was surprised to see that the boot does not rest on the ski but is actually suspended by the pins of the binding heel-piece. When the heel is locked, there is almost an inch and a half opening between it and the ski. Is this the way the binding should be? And, if yes, what is the purpose for the suspension?

post #2 of 16

An inch and a half?  That seems quite extreme, I just snapped a pair of boots into some dynafits and I have no gap at all. Do you have the brakes installed?  Those pins are the weak spot and the heel does need to rest on the binding housing.

post #3 of 16

It sounds like you haven't stepped down into the binding and clicked into the rear pins.  You probably need to be wearing the boots to do this.

post #4 of 16

I think mine do rest above, but only 1/4 inch.  I'll check.

post #5 of 16
Thread Starter 

My estimate (inch and a half) was a bit off, but still it's an inch from the ski and 3/4 inch from the base of the binding plate (no brakes). The pins are in the boot holes fully engaged. Here's what it looks like:


post #6 of 16

Is the toe of the boot the same height above the ski?

post #7 of 16
Thread Starter 

The  toe is 1/2 inch above the ski, about 1/4 inch above the binding plate:


Here  is  what the whole set up looks like:

post #8 of 16

Are they Dynafit boots, or a compatible other brand?

post #9 of 16

The TGR web site has some links to great stuff on the Dynafit bindings.  I put the link to the thread in below.  Here is an excerp that says the Comfort heels are suppose to be 30 mm and the toes 20 mm above the ski.


What about riser plates?
In alpine downhill ski mode, the Dynafit TLT binding places the heel of your boot 20 millimeters above the ski, and the toe about 12 millimeters above the ski (measurement is not precise because of difference in randonnee boot soles). The Comfort yields even more rise, with 30 millimeters at the heel and about 20 mm at the toe.

Thus, not only do the Dynafit bindings provide fairly substantial "rise," but the lower toe provides more "positive ramp angle" for your boot sole, thus compensating somewhat for the neutral stance of randonnee backcountry ski boots.



post #10 of 16
Thread Starter 


Thank you very much for this pointer: it looks like my setup (Comfort) is exactly as descibed on the TGR website: 30mm above the ski at the heel and 20mm at the toe. So, I guess my installation is what it should be. It's just looked odd to me after Fritschis that there was such a large clearance, the boot being essentially suspended by the heel and toe.

In answer to your earlier question: the boot is Garmont MegaRige, which is Dynafit compatible.

Thanks again.

post #11 of 16

Glad to be of service.  Be sure and check out all the links on the TGR thread.  They have all kinds of great info for using the Dynafits.

post #12 of 16

What a minute here - your boots are not fitting the binding properly.  The photograph shows that the boot is way to high off of the ski binding.  I use the same boots (Garmont Megaride) and similar bindings with the boots sitting on the binding plastic bottom plate.  I suggest that you visit Lou Dawson's web site that has excellent information about Dynafit bindings. 

Go to http://www.wildsnow.com/articles/dynafit_faq/dynafit-binding-faq-index.html   cheers, cmr

post #13 of 16

The 30mm/20mm paragraph in my post is a quote from Lou Dawson's site.  You can click the link I posted and then go to the second link in that post to get to it on his FAQs about riser plates.  You probably do not have the Comfort model Dynafits, so yours mount lower,

post #14 of 16

FWIW, without a bit of clearance you'd have a hard time mounting ski crampons or other such... brakes, etc.  I honestly didn't think mine were that far above the skis (just clicked in my boots, sure enough they are, just like in your photo).   They ski fine, release fine, etc.


When you use them, assuming you haven't yet, be very careful using your pole to move the heel piece into the various rise positions.  That little tube breaks very easily - doesn't take much torque to do it.  

post #15 of 16

 If the Dynafit brakes were mounted on those skis, there would be almost no clearance under the heel.  The heel pad on the brakes fills that space pretty completely - the clearance allows you to mount brakes.  

post #16 of 16

Really glad I ran across this thread as I had the exact same question with my Radium/Comfort setup. Sort of defies logic but hey, everything about Dynafit bindings defy logic. 


I did notice they were sort of "bouncy" when going over some rolls on a cat track the other day. No brakes on mine just toe tethers. 

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