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Dynafit TLT Speed Radical Binding

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    44 Reviews


    Lighter and faster than ever.

    Built to be light, fast, and super-simple to use, Dynafit designed its TLT Speed Radical Binding to withstand the forces of traditional alpine touring and maintain the low overall weight that ski-mountaineers demand.
    • A combination of forged aluminum, CrMo steel, stainless steel, and high-strength plastic provide plenty of strength and keep overall weight low (341g)
    • No plate under the toe means that power gets transferred to your ski more directly
    • Speed Step heel-height adjustment system activates easily using your pole tip
    • Slideable heel piece allows you to gain or lose 12.5mm of length without remounting
    • Torx (steel) screws save weight and are ultra durable
    • Guide leashes included
    • Item #DNF0068

    Tech Specs

    forged 7075 aluminum, CrMo steel, stainless steel, high-strength plastic
    Release Rating
    4 - 10
    Boot Compatibility
    Heel Elevators
    Claimed Weight
    [pair] 1 lb 8 oz
    Recommended Use
    alpine touring, ski mountaineering
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Dynafit TLT Speed Radical.

      The lightweight, durable and trustworthy nature of the Speed Radical rivals anything else on the market. I ski them literally every single day—without brakes and have full confidence in their ability to perform in any situation in which I find myself.

      Perfection in Simplicity

        These bindings may look like the most old-school, simple binding in the Dynafit lineup, but they pack a punch. There's a reason they've remained in the gear line-up, nearly unchanged, year after year. They're reliable, quick and easy on transitions, and ultra-light on top of that! My go-to year after year.

        The Classic!

        • Familiarity: I've put it through the wringer

        Great binding for everyday use if you want light weight and durability along wth some adjustability for multiple boots. I've used these with bigger heavy skis (125mm) and big boots and have had no issues at all.

        The Classic!

        huge improvement over spinning heelpiece

        • Familiarity: I've put it through the wringer

        I really like these things over my older Vertical FTs. The flipping for climbing mode is easier to use, and I like that it has a little nub to help you guide your foot to the right amount forward. I'm 210 lbs and still feel pretty confident in these things.

        Light is Fun

        • Familiarity: I've put it through the wringer

        Its amazing how much easier it is to hike with dynafit bindings. The speed radical heel is much easier to use than the speed turn heel which has made touring even more enjoyable.

        Love the Actual Binding, But...

        • Familiarity: I've put it through the wringer

        These bindings are wonderful. They are easy to get into, are quite strong for being tech bindings, and are quite light. However, if you are going to get these, get the version that has brakes. The clip leashes are beyond annoying, and take so much time. You can't really clip them with normal gloves on, so they take time when clipping on and off.

        So, like I said, the the bindings themselves are wonderful. But get the version that has brakes

        Love the Actual Binding, But...

        Great Tech bindings!

        • Familiarity: I've put it through the wringer

        I have had a number of Dynafit bindings over the years. I think Dynafit makes the best tech bindings out there. These are very simple and light. Perfect for a day of BC skiing.

        Light and Easy to Use

          I have had these for several years now and been very happy with them. I chose the lightweight option and it never bothered me until recently, when I started occasionally taking these to the resort. Now the only thing I would like is brakes versus using leashes. That being said...I think the heel raisers are sufficient for making it up any terrain and the simplicity and weight savings on these has just been amazing. I love the performance of Dynafits. Will def stick with them for the future

          Can be a pain to clip in

          • Familiarity: I've put it through the wringer

          I purchased these for my mom and below is what she had to say about the TLT Speed binders.

          I bought these bindings and found them to be difficult to get into in powder and anything but a flat surface...not always available when skiing the back country. The toe piece has a boot guide that actually makes it more difficult to get the boot toe into as there is no wiggle room. I am a little disappointed in them - I think they are probably better for a narrower race type boot.

          Solid and simple.

          • Familiarity: I've used it several times

          I'm replacing my old TLT Comforts of many years with these. I love the new metal heel raiser system and the fact that I can buy these without brakes. The safety straps are all need in the backcountry. I'm glad that Dynafit still offers this version with all their new bindings in the mix.
          A great value for sure.

          Dynafit TLT Speed Radical Binding

          • Familiarity: I've put it through the wringer

          After touring on Marker Duke's for the last few years, these bindings feel like I'm walking with feathers strapped to my feet. There are lighter, and more performance oriented touring bindings, but these are a good balance for the budget and feature time tested technology.

          So Far So Good

          • Familiarity: I've used it once or twice and have initial impressions

          I just got these mounted to a new pair of Dynastar Mythic skis. The only other tech biniding I have used in the past was the Dynafit Speed Turn 2.0. It has not snowed yet, but I expect these to ski exactly the same as my speed turns because the toe piece is the same and the heel piece is only modified with a different heel riser system. I found the Speed turns a bit difficult to engage with the tip of my pole, so I am excited to go to the slight easier method of flicking the heel risers. This is the standard in tech binding for a reason, low weight, functional, simple. I will update if I run into any concerns, but for now I have no doubt these will be just what I'm looking for.

          Great Low-Tech Bindings

          • Familiarity: I've put it through the wringer

          These are one step up from Dynafit's simplest bindings, the Speed Turn. The only functional difference is the heel riser - you gain the flip up style riser as opposed to the volcanoes on the Turns. A little more user friendly and quicker to change riser heights with this style.

          These are simple, durable bindings that will get you up and down just about anything. Nothing fancy and nothing cutting edge, but I think this is a good thing. The tech in these has been around for decades and is quite refined at this point. No, they're not designed for hucking off things - but how many of us really ski that way in the backcountry? The release functionality is primitive compared to an alpine binding, but generally effective. I've popped out of them a few times when I was really glad I did but never pre-released.

          The mounting pattern on these is quite narrow. I personally wouldn't mount them on a ski much wider than 100mm or so for fear of putting too much torque on the screws, but plenty of people seem to do it without incident.

          Simple to use, lightweight

            I've been skiing on the TLT Speed Radical for the last 3 years and my wife just got a pair this season. They are super easy to use and lightweight. I love how easy it is to flip between the different levels of climb mode (big improvement over tech bindings of yester-year).

            Great binding, but too much forward lean

            • Familiarity: I've put it through the wringer

            I've used these bindings for 2 seasons now. The work great and feel reliable but I've finally found out what it is I don't like about them. Pin height. Meaning the toe pins are 29mm from the ski surface and the heels are 45mm. That is a difference of 16mm.

            This means that with my boot sole length of 297mm (TLT6 27.5), the bindings force an additional 3.1° of forward lean on top of the 15° my boots already have. This makes jumping from my alpine setup to my touring setup feel very different.

            The these bindings force me into the back seat unless I change my stance from my downhill setup (Dalbello Krypton boots, Marker Griffon binding, Bluehouse Maestro ski) to something more exaggerated. A fix would be to put a riser under the toe piece, but that can only change it a bit. I eventually swapped out the heel pieces with a Plum Race 150 to get the ramp angle I wanted. I will miss the flipper heel risers though.

            Google: Dynafit Pin Height Delta if you are curious about how they compare to other tech bindings.

            Perfect backcountry binding!

            • Familiarity: I've put it through the wringer

            These are my favorite BC binding. Perfect balance of weight, downhill performance, and cost = value. They are simple, easy to use, and maintain. Great companion for the BD Carbon Convert and TLT 6's. Super competent BC combo!

            light and strong

            • Familiarity: I've put it through the wringer

            Love this binding, I have had many pairs of previous dynafit bindings but this is the best so far. Updates to the heel lifts are great, they do take a little getting used to, but once you do, its great. Haven't had any issues with pre-releasing. Very light weight

            So light and strong!

            • Familiarity: I've put it through the wringer

            This is my go to touring binding for more technical missions here in the PNW. If you're doing lots of miles and technical descents this is a great option. I have never had a pre-release issue or any other wear related issues and have skied these a fair amount in the backcountry with lots of skinning. My version has the anti-rotation solve from dynafit which IMO 100% solved the problem of the binding accidentally rotating while skinning. The toe is super easy to step into, some people are a little scared the first time to go brakeless but once you do and lose the extra 2-300 grams you'll never look back. My only complaint with this binding is that the ramp angle you get out of the box is too steep for me. This is the same toe unit as the dynafit ST but doesn't have the plastic base plate that would help lessen this ramp angle. I went and bought the ST plastic base plate and had this mounted underneath my toe pieces and this significantly helped reduce the ramp angle and make the bindings have more of a traditional alpine binding angle which is more comfortable for me to ski. Just make sure you also get longer screws for your toe piece if you plan to do this mod.

            Overall, very impressed with this binding. If you're going to be doing long tours and need a reliable binding that is time-tested and issue free, give this guy a shot. Since it is an option that has been around for a few years you can often find deep sales on this option, so very economical. I have the binding on K2 Waybacks and Black Diamond Currents.

            So light and strong!

            Hi. So do these have the TUV certification talked about in the article (about buying AT bindings)? Would they release properly for a 105lb gal?


            These do not hold a TUV certification. Check out the new Radical ST 2.0. It's a little heavier than the Speed Radical, but it's TUV-certified and comes with brakes.


            If you are looking for the lightest option that still has a heel release, the TLT Speed Radical is still a great choice–in my experience, they release just fine if everything is properly set.

            Best Answer

            I weigh 125lb and I have my DIN set at around 4. The bindings end up turning themselves out if I don't increase my DIN past 4. I leave it at a 4 because I don't mind it too much - It just means that I have to keep an eye on my settings and turn it back in every once in a while. Not sure if this will affect you, but it's something to consider.

            So Kristin, what do you mean by "turning themselves out"? Does the setting migrate higher with use? Have you released out when you expected to? Or failed to when you wanted? This will be my first AT set-up and I want it to be safe (as possible!) Thanks so much for your input!

            Are the Speed Radical bindings you have in stock all the updated models with the added anti-rotation device in the heel?
            "Update: All Speed Radicals now come with an anti-rotation mechanism that is mounted under the heel to prevent accidentally going into ski mode while skinning."

            How do these bindings hold up in inbounds skiing? Looking to get into AT, but also will be skiing inbound most of the season.

            Hi Ty,

            I wouldn't recommend these for inbounds skiing. Give me a shout and we can talk about some options that will work for you. Namely frame bindings or burlier tech-style bindings.




            Hi, I have a pair of radicals but don't...

            Hi, I have a pair of radicals but don't want to be leashed in if caught in a avalanche. Also they can be dicey to put on when on a steep slope. Can I add brakes to the radicals?

            Best Answer

            You cannot add brakes, and yes they can be dicey to put on when on a steep slope. A tactic I have been using is this: I lay them down on the snow and clip them into my boot. Get both skis on, then just clip the leash back to themselves once I get them on my feet. To be honest though I havent even used my leashes in a year. I do get scared but, when I am on a steep slope I am sure to chop a good step and never let my hand leave the ski and always put on the downhill ski first as it gives you more stability to stand and get your uphill on. I recently had to go to a skimo race and they made us use these like dinky cordage leashes with non-climbing mini biners, those would definitely tear away in an avalanche. Maybe the leash that comes with these are just a bit beefy use something with a breaking force of 200lbs.

            I clip my leash to the bar on my front boot buckle (Maestrale)... Confident it'll rip my buckle off before my leg off... Had a huge "snowboarder on backside edge not looking where he was going" enduced stack last weekend and came away OK...

            Is this enough binding to power a 120 mm...

            Is this enough binding to power a 120 mm wide BD Carbon Megawatt? I pretty much only use these skis for BC in Powder.

            I have that exact set up. Since you'll be skiing the megawatts in powder...power from boot to ski isn't an issue. And, in reality, the binding is the least of your issues. Running a softer boot with a giant ski may provide some "lack of power" before the binding will. That said, I ski the 188cm megawatt with TLT6 boots and they shred.

            Does anyone know... what am I really gaining...

            Does anyone know... what am I really gaining with the Plum Guide vs. the tried and true Dynafit Speed Radical? I'm having a really hard time justifying the additional $$ for the Plum bindings...

            Once dynafit's patent expired, several manufactures were able to join tech binding industry. Plum was one of these companies. Plum has essentially taken a really good dynafit product and has tried to make lighter, stronger, and more reliable. Wildsnow has a good comparison between the Guide and Speed binding. I don't have Plums, but I hear good things. One downside is that I have heard that customer support in the states for Plum bindings is nonexistent.

            Unanswered Question

            I have a pair of G3s that have max holes...

            I have a pair of G3s that have max holes in them (filled), but I used to have dynafit bindings on it, they were borrowed, and am planning on ordering a new pair, so I would like to know if the holes will be able to go in the same spots or if there is variance between the models? (due to the fact that I can't afford anymore holes)

            Salomon Quest X 100 Ski Boots work with...

            Salomon Quest X 100 Ski Boots work with these?

            I have the TLT Radical FT bindings with...

            I have the TLT Radical FT bindings with brakes and am looking for a dynafit binding that will change modes from ski to tour and back without having to remove the skis. Will the Speed Radicals do that? If not, what will? Thanks in advance for your help.

            These will change from tour to ski without stepping out. To change from ski to tour you have to step out of the toe piece and rotate the heel piece. I believe all dynafit bindings work like that.

            Confused between the Speed Radical and...

            Confused between the Speed Radical and Radical ST. Are the brakes on the ST interchangable? If I change to a wider ski in the future, can I get wider brakes? If so, how much do they cost? (I don't see brakes only listed on Can you take the brakes off, and use a leash instead? If you can't swap the brakes, seems like I'd be better off with the Speed.

            Best Answer

            This years Radical ST and FT cannot have their brakes swapped after they are mounted without pulling off the entire heel piece and remounting. So basically if you need brakes and know what width you need then go with the ST. If you are ok being brakeless and just using a leash, you can save the weight and some cash and get the Speeds.

            How would this bad boy stack up if I wanted...

            How would this bad boy stack up if I wanted to go hard (no terrain parks really, maybe occasional small jumps) in a resort setting? I want one ski that does it all AT and Resort stuff.

            You will likely need to wear the leashes with these since most resorts require some sort of ski retention device. That being said I think they may get you by for the occasional resort day but I'd be wary on jumps and going really hard. One of the downsides of the these and most tech bindings is the lack of elasticity so you may find your self ejecting prematurely on harder hits.

            Hi, Ive got the same concern as knup119808...

            Hi, Ive got the same concern as knup119808 with the space between my boot heel and my ski. Also my heel tech inserts don't line up quite right with the binding, how concerned should I be? These are my first pair of proper touring bindings so I'm not too sure what to expect.

            If the misalignment is enough that you cannot easily step into the binding it may have been mounted incorrectly. I would take it back to whoever mounted it for an alignment check. The heel gap on all Radical series bindings should be 5.5mm.

            I own a pair of radical st bindings and...

            I own a pair of radical st bindings and looking for an additional pair. I like the idea here of less money and less weight with equivalent performance. My biggest concern is safety being attached to the ski. Say I take a gnarly crash or in avalanche (using abs backpack) would the skis be dangerous flying around me. In an avalanche I would assume they would act like an anchor attached to my feet. What if they hit my head and knock me out? What if they cut my blow up?

            Second concern is rear plate seems narrower than the st, and I am going to mount on 110 wide skis. I am 135lbs and the skis have thick wood so plenty to bite to. Could this be a problem?

            Best Answer

            To mitigate the risk of the skis being an anchor in an avalanche I clip the leases to breakaway loops that I tied with 2mm cord (I believe) rather than the little steel loop that is pictured. So in a major crash or slide the leashes should break the cord loops and you are good to go. As for heel piece it is the same mount as the ST so there isn't any more or less there in terms of screws. The difference is of course the heel piece of the ST is a bit differently molded in order to have a brake attached to it.

            I want these but compared to the st still makes me think penny wise pound foolish, literally. So when I look up the 2mil cord the tensile strength is anywhere from 40lbs to 200lbs, so where do I draw the line? Even if I pick 60lbs, do I still want that ski around me before it breaks? I almost think a good solution is a long retracable extendable leash (only in bc).

            Don't know if you answered my question. It seems the screws are closer to the centerline (long ski length line) therefore less torsional strength.

            The heel screws are in the same place for the Speed and the ST. I switched my bindings from the ST to the Speed and was able to reuse the holes ( You can also check against that template. As for the leashes I guess it's really a matter of preference and conditions. I have no empirical knowledge as to the force generated by an avalanche that is deep/strong enough to suck skis down but I would imagine it exceed 60lbs easily. The only slide I have been involved with was only deep enough to run over my parties boot cuffs but it ended up still bending my partners ski pole in half (alum pole) so who knows. Then there are of course the situations where you are picking between two bad options. Anchored and buried or lose a ski and die anyway... Lot to consider for sure.

            Ben, a small nor cal shop called makes long leashes with break away tabs for just this purpose. A nice side benefit is you can keep them attached while ripping skins in sketchy spots and have the peace of mind that you're not going to lose your ski. FWIW, I've tried the multiple zip tie method of creating a breakaway leash with the OEM radical leashes and it didn't work too well. Took a digger at the resort and the windmilling of the skis on a short leash was enough to break the zip tie. Sketchy. If you go with a breakaway option, be sure to test it! Good luck. (Awesome binding, BTW)

            got some black diamond push 175mm 4 buckle...

            got some black diamond push 175mm 4 buckle tele boot- any of these dynafit binding fit em? looking for alpine 80 percent of time carving crud pp, ice. would like the flexibility for shlepping fence gates etc. also tele boot comfortable and WARM... hmmm

            Hey Sandy, you said "The Radical ST and...

            Hey Sandy, you said "The Radical ST and FT have a wider and thicker plate under the toe which gives more beef for wide skis."

            Is it possible to add this plate to the speeds? How would this affect the ramp angle of the bindings?

            Also, what is the difference in stack height and ramp between the speeds and the STs?


            Best Answer

            The FT and ST have risers under the toe because the heel is higher due to brakes. These are plenty beef for the widest skis. I have them on K2 Darksides and DPS Lotus 120. Most folks have problems with ripping bindings off skis because of bad mounts. Don't use a power drill to set the screws, hand tighten, then you wont weaken the core

            Yes, I used the plates on my Speed Radicals specifically to lower the ramp angle. Just make sure to use the longer screws. Works great. Difference between bindings is substantial. More here:


            I'm thinking of putting a pair of these...

            I'm thinking of putting a pair of these on my 10/11 Gotamas (currently mounted with Barons). They are heavy! Should I dyno the Goats or save up for lighter skis + dynafits? East Coast, mostly day trips, aggressive skier, and hit drops around 10ft. This will be my 2nd season in the backcountry.



            If you are an aggressive skier and hit drops I would look into the G3 onyx binding. I've had it for 3 years and never had a problem. I have heard of dynafits blowing up if you rally them too hard. The g3's are a bit heavier but no where near as heavy as barons. As far as getting lighter skis goes, you will never regret that!

            Thanks Matt, glad to hear the Onyx is working well on your setup. I'm a bit concerned with durability of the Onyx, but the Speeds have also had issues! Twice the weight, although I like the DIN and ability to switch into ski mode.

            any idea when these will be back in...

            any idea when these will be back in stock?

            Hi all, I just got a pair of the speed...

            Hi all,

            I just got a pair of the speed radicals but I can't figure out how to adjust the lateral din release for the heel. I know how to turn the big screw but there are no notches or marks on the screw to indicate how to line it up to the din marks. Do you screw it all the way and then back it out to line up the screw driver slot? Or am I really missing something?



            here is a link, with pictures on how to adjust the "big screw" for different settings. This large screw adjusts the lateral release.


            I highlight the raised plastic marks with a sharpie black marker. Easier to see them

            I am looking to get some dynafit bindings...

            I am looking to get some dynafit bindings to go on some Rossi S7's 188cm. I am 6' and about 160 lbs. will this binding be enough to power this ski both inbounds and out? I don't huck cliffs or charge moguls, but ski pretty aggressively otherwise. Thanks!

            Jeff, For both the skis you are on and your skiing style, I would lean toward the Radical FT first or the Vertical FT, second. Both have a higher DIN. The Radical FT also is beefier, has a wider connection to the ski and has more torsional rigidity.

            Thank you for the info. I would love to get either ft binding but I'd really like to only spend $400 or so on these. Will the speeds hold up or will I be disappointed? Would the vertical tlt st binding be worth the extra $50 in my case? Or do those ski about the same?

            Speed will do fine. I use them in a similar situation and am heavier/bigger. Just buy the Dynafit spacer to go under the Speed toe for best effet but not required. Plate lowers ramp angle and gives you more support. Be sure to do it with the longer mounting screws though. I've skied 190cms x115mm both with and with out on lift and problems.