Dynafit Heel Pieces

Jonah , contact us at help@skimo.co. Send me a side view picture

Jonah, The Radical heel will not work with the Vertical base plate. You would have to replace both. Then have a somewhat mismatched binding.

Hi Brian, the heel housing and baseplate/brake are separate parts. Depending on your situation, you may be able to reuse one of those parts. You can e-mail us photos if you'd like specific assistance.

Hi George, yes it sounds like something is broken in the baseplate/brake combo. Those are available here.

Hey Ned! That's a good gift! Not sure if the Beast 16 toe and Radical 2 heel have ever been "officially" cleared to work with one another. I suppose technically they would, but who knows what kind of release characteristics you'll end up with if you mix that combo, all I can do is speculate at this point.

Hey Pico! Looks like we're out at the moment and probably for the foreseeable future. The good news is that we have a Used Dynafit Parts page that's worth keeping an eye on. Worst case, the Vertical heel hole pattern matches up with the Speed Radical and Speed Turn heel pieces so a full blown replacement wouldn't be the end of the world.

Hi Adrian, for the number of Radical ST bindings that have been sold over time, they actually have a decent track record of performance. The design and most of the bindings out there are getting on in age and are probably ready for retirement so it's not a shock when a heel breaks from time to time but the parts are still pretty available and worth replacing.

As for compatibility, there really isn't anything that's cross compatible as a drop in replacement/upgrade. Only the Radical ST heel pieces will be compatible with the base plate that you have pictured.

Hi Nate,

Thank you for your answer.
Which Radical ST? 1 or 2.0?

Hi Adrian, Nate is referring to the 1.0 version, which you have.

Hi Jake, if you mean Vertical FTs (the ones with volcanoes), you can get replacement roofs (speed or comfort plates) from B&D. Note you'll also need the volcanoes if you go with comfort plates. Other than that, you're looking at new heel pieces.

Thanks JBO!! I think I'll just get a new heelpiece, the speed turn 2.0's, and make a mutant binding. Thanks!!

Hi Mark, it sounds likely that you have a Radical ST binding. If it is all black and gray, you have a Radical ST, if there is some green and bronze color to it, you have a Radical ST 2.0. We currently have both in stock, and you can select the one you need from the drop down menu above.

I'm sorry to hear that you've broken several of these. It seems that if there is going to be a failure of the Radical ST binding, that the heel piece is the weakest link. That being said, we have many customers who have never had a problem so it seems to be hit or miss as to whether or not its an issue.

Hey Toby! Ha, it's tough to go back to heavy gear once you get a taste of the good stuff isn't it?

Officially the Radical 2.0 toe is only compatible with the Radical 2.0 heel because of the forward pressure/rotating plate. The Rad 2.0 toe has seriously soft toe springs (intentionally) to help with the lateral release factors, so it could potentially give you some really low release values. Short answer: I wouldn't do it. If you're looking at lightening up then I'd say just sell the old binding and start from square one with a complete Superlite 2.0.

Hi Joe, yes they are pretty much interchangeable. Same pin heights and mounting patterns.

Hi John, the sealant recommendations typically come from the manufacturer of the skis, not the bindings. It depends on the construction of the ski what works best.

Ah ok
Well while I have you - do you happen to know what kind of epoxy is recommended for Atomic Backland Descenders?

A waterproof wood glue is fine with those. You can step up to epoxy if the holes are janky.

Any kind of epoxy? Is there a brand that's better than others?

Orange double bubble works great!

Hey John! Dang, that's a bummer! I'm gonna say yes, it's probably possible, but unless you already have a speed turn heel that you were going to throw away it's probably not worth it. I'd just grab a completely new Speed Rad heel piece.

Hi John, you probably also want to pull out the pins that cause that cracking and install the anti-twist kit.

thanks guys - i actually just ordered a set of new radical heels from you instead of trying to tinker with this.

Hey Ryan, thanks for reaching out!

1) This isn't definitely a case of "yer gonna die" but it's also not definitely not a case of "yer gonna die." Maybe more of a case of "we don't recommend it, but try at yer own risk if yer motivated." Either way, probably not wise to mix any part of the Rad 2.0 and any part of a more traditional binding like the Speed Rad as the springs in both the toe and heel on each binding is tuned differently and who knows how they will end up behaving in release tests. Could be so low that the binding is barely usable or it could be so high that the binding release forces exceed that of the strength of your bone structure. Either scenario isn't anywhere near ideal though and I don't recommend it.

2) I checked the hole pattern for both bindings and it looks like that's probably not gonna work. We recommend at least 15mm between each QK insert and there's just not enough space in the Radical 2.0 hole pattern for a Speed Radical to fit with inserts. You could potentially get away with it if you didn't have inserts in the ski, but there's still not a whole lot of potential there.

FWIW, I'm doing the inverse of that with very good results - Using Speed Radical toes with Radical ST 2.0 heels. Releases are appropriate (it does release, but no pre-releases). Skied many times with this setup on Voile Vectors last year, both BC and on Resort. I used the B&D 6.4mm shims under the toes.

That's awesome to hear actually, I'm glad to hear that it's going well. We have definitely built a few of these setups before and have had no negative reactions (so far) so it sounds like it's entirely doable. Sounds like my apprehension was a bit excessive to begin with. Still not recommended by Dynafit and we haven't been able to put these setups on our release testing machine so I can't comment on exactly how it performs under stress, but it sounds like it's working close enough to appropriately that it's feasible, which is sweet.

Hi Andres, unfortunately the Radical and Vertical spindles are not compatible.

Hi Alexis, yes all Radical ST generations are compatible.

Hey Brian, yeah that is an issue with the older Radical heel pieces unfortunately. There are 3 iterations of that heel piece now, the original, an updated heel piece (reinforced so it's a bit stronger), and then the latest iteration that has addressed this issue even further. How old are your bindings?

Hi Bjornar, you could try something like a Plum Race 150 heel on a Kreuzspitze 14mm plate (same hole pattern as Speed Radical).

Hey Markus. Yup, the dual springs and end cap are in there, but no base plate.

Hi CVT speed turn will fit into the same holes as your comfort heels.