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Description

The name might be straight from the '80s, but the tech is definitely 21st century.

Designed with a 100mm brake and gliding heel plate for improved releasability, the Dynafit TLT Radical ST Binding excels at backcountry touring and ski-mountaineering adventures.

  • A combination of forged aluminum, CrMo steel, stainless steel, and high-strength plastic provides plenty of strength while keeping overall weight low (531g)
  • The six-millimeter plate under the toe aids turnability without sacrificing power transfer
  • Self-guiding wings allow for quick entry
  • Speed Step heel-height adjustment system activates easily using your pole tip
  • Slide-able heel allows you to gain or lose 12.5mm of length without remounting
  • Stopper with gliding plate provides better side release in the event of a spill
  • Torx (steel) screws save weight and are ultra durable

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Dynafit TLT Radical ST Binding

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Here's what others have to say...

5 5

These are chill.

  • Familiarity: I've put it through the wringer

A great, light weight AT binding. They haven't popped on me unexpectedly.

I've been most happy with them during the ascent. After a little practice, switching between the different height adjustments in the heel is a breeze. Absolute climbing machines.

This may be a silly question but will the 110mm width be suitable for Voile V8s in the 165cm length (which have 107mm underfoot)? Thanks.

Unanswered Question

I got new Volkl Two's, 124 mm underfoot in one hand, and a pair of Radical ST on the other.
So question one is: is it possible to replace for the wider 130 mm brakes?
And question two: will the ST work right in the 124 skis? I am 181 cm - 90 kg (sorry for metric), not agressive skier. I will be skiing maritime (Chile) powder, tracked or wet deep, and some breakable crust. I could use alpine bindings, but got these at home and it'd be a plus to use them to reach "that remaining line".
What gets me to think twice is I've got several preleases on previous Gotamas, including the one that ultimately made me shelf the ST's. In favor now is I'll be hitting almost no ice or badly hard snow with these boards.

4 5

Less Weight = Faster Turns

  • Familiarity: I've used it several times

Some great feedback from Andrew W. out in Colorado:

"The Dynafit TLT Radical ST Bindings bindings are great in so many ways. First, the weight difference: I went from an old pair of Marker Baron's, and the weight difference was huge. I have noticed no difference in the performance, and I love how lighter my skis are, especially in the thick and heavy snow, in steep trees. Second, less moving parts: With the Dynafits, there are less moving parts, and less places for ice and wet snow to jam into. Getting in and out of the bindings, as well as switching modes is quick and easy. Third, peformance: I don't jump cliffs, but I ski everything else. I was originally concerned about performance going to such a small binding. However, I have noticed no difference, other than the weight. And less weight means faster turns.

Two minor downsides: First, you can get a false positive when engaging the binding. So, you just want to be careful so your ski doesn't drop in before you do. Second, the "breaks" are disengaged when in uphill mode. I don't consider this a show-stopper, but just something you might want to know. However, for both of these issues, I just took two old leashes from my tele-days, and keep the boot and ski connected in the event I might have concern. "

Any questions about Dynafit or other touring bindings:
klivingston@backcountry.com
801-736-4337

5 5

Climbing Machines!

  • Familiarity: I've put it through the wringer

I have spent too much time touring with Fritchis. After skiing some steep spring snow this review will focus on the uphill portion of the product performance. First of all, if you are concerned about bump skiing or lift service skiing stop reading and head to the saloman or marker page. If you are into lightweight and a serious improvement in skinning uphill performance this is your binding. Wow! is my first reaction. I flat out crushed some long tours in central colorado on both spring and cold snow surfaces. I was amazed at how steep I could skin and Z-turn up slopes. Purely pleasant and fun. Much better than my Fritchis. Drawbacks: The fritchis were easier to get in and out of. They are easier to switch back and forth from ski and walk mode. So what. I am selling the fritchis.

Climbing Machines!
5 5

I am so in love!

  • Familiarity: I've put it through the wringer

They are light weight and durable! I have put many days on these bindings in the back country and I couldn't be happier. I am a 150lb built female and I consider myself an aggressive skier and the 4-10 din setting is perfect. I haven't done any crazy cliffs, I have done some small jumps and drops and they have held up really well. I only had one miner fall this season and they remained clipped in which was fine, it was weird snow and I wasn't going fast. I have had no problems skinning with them so far and I am excited for more spring corn. I highly recommend these bindings!

4 5

Works great. Super light but solid!

  • Gender: Male
  • Familiarity: I've used it several times

Changed from a Salomon Guardian to these. What a difference in weight. I'm a pretty aggressive skier but weigh only ~160 lbs so the binding feels really solid (the guardian was overkill). I also bit it pretty hard at ~40mph and the binding released very predictably...no injuries! I mounted it myself with a template on from the web and the torx screws helped make this easy. I'm sold, and just picked up another set for my wife.

4 5

great binding for all around touring

  • Familiarity: I've put it through the wringer

I converted to Dynafit from Fritschi. So far this season, I'll bet I have roughly 40 days on them. So far, they're great! I started out on a pair of freeride pros, which I loved until I broke the torsion plate. I'll admit I was suspicious of the light construction. However, after several long tours I can't imagine riding on anything else. DIN settings on the STs range from 4-10, which is perfect for most unless your sending mondo cliffs on a regular basis. So far, my only gripes are my boots seem to pop right out much too easily while in climbing mode (even with the tab locked in). That and the fact that the brakes don't seem to be very effective. That is one of several features I miss about my Fritschis. These brakes tend to no be very effective in softer snow. Other than a busted Anti-Friction device which may or may not have been my fault, these binding have operated flawlessly. Definitely worth the hefty price tag if you want to shave some weight and save your legs for some downhill shredding

great binding for all around touring
5 5

50 Shades has nothing on these bindings

  • Familiarity: I've put it through the wringer

Perfect set-up for all around touring and ski-mountaineering. I have also had about 40 days in them this year. Lightweight, easy to use, and bulletproof - defines classic design. The 10 Din also means you can shred some descent stuff without any (or at least) much fear of popping your bindings. The only downside is the cumbersome transition from ski to skin mode - you have to come out of the binding. For extra security in steep or no-fall terrain I have also found that locking the toes in the "up" or skin mode gives some added piece of mind.

50 Shades has nothing on these bindings
4 5

Lightweight, robust, and versatile.

  • Familiarity: I've put it through the wringer

I have skied about 40 days in them and I'm getting a new pair for my wife's skis. Radical is perfect if you are looking for lightweight bindings without sacrificing downhill performance.
They are a nice balance for an alpine setting. The DIN setting of 4-10 is sufficient for even a big aggressive skier unless you jump off cliffs regularly. They are slightly heavier than the Speed version but I like the fact that they come with brakes, which gives me some peace of mind when transitioning in a tight and slant spot. I had skied in a Fritschi binding for a few seasons before and when I first converted, I was a little suspicion about the downhill performance. That suspicion has been completely eliminated after a few runs.

5 5

2nd pair

  • Familiarity: I've put it through the wringer

Just bought my 2nd pair and have them mounted on 114 width J Ski Friends. No issue what so ever.

Anybody have any luck getting any kind of service from dynafit after the warranty has run out. My bindings are 3 years old and one of the heel units came apart out in the back country. Obviously a manufacturing defect as I put very little stress on this binding as I am only 150 lbs. Back country was no help at all and the dynafit company was even worse.

Responded on

Hey Mike,
Dynafit handles all of their warranty issues directly. However, feel free to email me, so you have a point of contact here at Backcountry, and I will assist you as much as possible.

Sincerely,
Emily Jenson
ejenson@backcountry.com

5 5

Feels safer than the verticals

I am definitely sold on dynafits! But after 5 years on the verticals I am so grateful I finally coughed up the cash for the radicals. I can now easily and very QUICKLY flick between riser levels, instead of fumbling around and awkwardly bending down like I had to do with the verticals. The one drawback I found was (luckily) on the first day I got them mounted and was trying them out in-bounds. Somebody next to me on the chairlift knocked me down when we were unloading, and one of them popped off. Come to find out I could make both of them pop off easily by lifting my leg to the side and kicking down on the inside edge of the ski against the ground... with the din set to 8! I readjusted all the dins to 10 (learning in the process that each binding has 2 separate din settings), and the problem reduced. But now I'm a bit nervous that they won't come off when I would want them too. Overall, love these bindings, they were worth every penny!

4 5

Ease and lightweight

  • Familiarity: I've put it through the wringer

Great touring binding. I've used these for the past year and they have held up well. I've hit cliffs, jumps, and skied hard on these and have been pleasantly surprised with the durability and feel of these. While hitting jumps the heel piece has popped off a couple of times and I can't quite tell if they popped off because of landing too far forward or if they popped off and caused me to fall forward. The toe piece has never come off during a fall, however.

This is the first true lightweight touring binding that I have owned and can now say that I doubt I will go back to a heavier set up. Easy to use, quick on the changeover, and a great binding over all. Love hiking with a lighter set up!

4 5

Standard Dynafit

  • Familiarity: I've put it through the wringer

Lightweight and easy to use. We've used Dynafits for years and still like them. The new flip heel lifts are easier to use the the old twist style but miss the ski pole turn to ski mode.

5 5

radical bindings

if you find yourself carrying a heavy pack and hauling a sled full of boxed wine several miles to a yurt, you probably don't want a heavy touring setup... These are awesome - VERY lightweight, sturdy, and simple to use (coming from someone who had previously only been on downhill bindings). The two heel risers can be flipped up and back with your ski pole, and you can switch from walk to ski mode without taking off your skis (although this requires a certain level of coordination...) I'm using these with Dynafit boots, and I haven't had any issues with the pins connecting to the toe piece so far. From a downhill perspective, I've felt confident skiing these for everything I'd ski with my resort bindings. Awesome bindings!

radical bindings
Go Everywhere

Go Everywhere

I have never had a problem with Dynafit bindings, and have actually been pleasantly surprised by their toughness. That is not to say they are indestructible. I have seen Dynafits fall apart and the resulting walk out can be ugly.

But hey, what's lighter than a Dynafit?
Half a Dynafit!

5 5

It's Dynafit, the gold standard

  • Familiarity: I've used it several times

These are awesome, plain and simple. These things tour great and give you all the confidence on the downhill. The gold standard in tech binders. Buy with confidence. Mounted on 180 Praxis Backcountry.

It's Dynafit, the gold standard
Unanswered Question

Would it be better to just get skis that aren't so wide? I can't seem to find any bindings that are 113 mm because isn't it ideal to have onesthat are the exact width of your skiis? Is bending the break the only way around this for skis that wide? I'm just getting into backcountry skiing and I'm trying to figure out the best setup.

Will the bindings fit on salmon q-115 skis 178 cm 113 ski waist?

Responded on

Hi Drake,
Yes those would work- I would recommend the 110mm brake, and they can be bent to accommodate the 113 waist.