Dynafit OEM Speed Radical Anti Twist — Elegant Solution

By Lou Dawson  
Dynafit Anti-Twist Device, installed to left, shown apart to right.

Dynafit Anti-Twist Device, installed to left, shown apart to right. Click all images to enlarge.

We start covering anti-twist solutions for tech binding heels, and look what ends up on the front porch: Dynafit’s “original equipment manufacturer” (OEM) solution to the less than perfect anti-rotation of their Speed Radical binding heel. (In case you live in a bergschrund: Tech binding heels are usually designed with rotation to effectuate sideways safety release. This sometimes results in the heel unit rotation accidentally while in touring mode. Various solutions are directed at this problem, the best being hardware ‘stops’ that 100% block rotation.) Read more backcountry skiing


Bugaboos Trip Report Part 1: Splitter Classics!

By Louie Dawson  
The imposing granite mass of South Howser tower, early morning in the Bugaboos.

The imposing granite mass of South Howser Tower, early morning in the Bugaboos. Click all photos to enlarge.

The Bugaboos! Weird name, breathtaking spires, incredible climbing (yeah, ski season is done for at least a few weeks so I forced the WildSnow “editors” to publish a climbing post). I’ve been wanting to check out the SE British Columbia climbing area ever since seeing the picture of Bugaboo and Snowpatch spires on the cover of my old copy of the the Freedom of the Hills, when I was a kid.

Coop had similar dreams of granite spires and splitter cracks, so we planned a trip to the Bugaboos for this July. As luck would have it, the weather window lined up, with a rare multi-week high pressure in the forecast. We set out on the long drive from Washington. Read more backcountry skiing


Maruelli Antitwist Add-On for Dynafit Speed

By Lou Dawson  
Maruelli Antitwist aftermarket mount plate and spindle (integrated) for Dynafit Speed ski touring binding.

Maruelli Antitwist aftermarket mount plate and spindle (integrated) for Dynafit Speed ski touring binding. The OEM binding housing rides on an aftermarket spindle that’s mono-block machined with the base. Main feature is the rotation locker (pin sticking up to right on binding base) but the unit also appears to be quite durable, albeit slightly heavier unless mounted without the adjustment rails.

Maruelli Antitwist aftermarket mount plate and spindle (integrated) for Dynafit Speed ski touring binding. Spindle shown mounted on longer adjustment rails; optional shorter rails are shown as well.

Maruelli Antitwist aftermarket mount plate and spindle (integrated) for Dynafit Speed ski touring binding. Unit to left is mounted on longer adjustment rails that give you boot length range similar to Dynafit rental-demo binding, and an even longer version may be available. Unit to right is on shorter rails that yield about the same boot length adjustment as the OEM Speed baseplate. The Maruelli Antitwist can also be mounted without the adjustment rails resulting in a weight savings over stock of 18 grams per binding, as well as less boot ramp angle. The configurations with adjustment rails are slightly heavier than stock and add a bit of ramp. (See complete metrics at bottom of post)

Read more backcountry skiing


Snowboarder’s Gear List — #SkiTheBig3 Alaska

By Guest Blogger  

Aaron Diamond

Editor’s note: Part of the formula for a successful expedition is knowing what gear to take. For human powered backcountry adventures, it’s a challenge to bring all the essential items while keeping backpack weight reasonable. Throw in the goal to conquer three major peaks during one trip to Alaska and packing becomes rocket science. The success of ‘SkiTheBig3 awed us. Here’s the list of gear that accompanied snowboarder Aaron Diamond during that outstanding mission.

After weeks of ice and slog, Aaron finally finds some good snow.

Aaron testing gear on Denali.


163 Jones Solution split board. Reasonably light with some tip and tail rocker, it handles the variable conditions we’ve found on the trip pretty well. I’m still looking for my perfect board, but this is pretty close.

Dynafit Speed Radical toes. Combined with a Spark R&D adapter these mount easily onto the split board. With only toe pieces and a 163 board on my feet for touring I had the lightest skinning setup on the trip.

Bomber bails and Voile plates. Yup, the old tele binding bails. These go in my pack for the uphill and come out for the downhill. Stiff and burly but heavier than some of the other hard boot binding options out there.

Voile Tractor Skins. All nylon for better grip when hauling sleds.

Read more backcountry skiing

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Welcome to Louis (Lou) Dawson's backcountry skiing information opinion website and e magazine. Lou's passion for the past 45 years has been alpinism, climbing, mountaineering and skiing -- along with all manner of outdoor recreation. He has authored numerous books and articles about backcountry skiing and is well known as the first person to ski down all 54 of Colorado's 14,000-foot peaks, otherwise known as the Fourteeners! Books and free back country news and information here, and tons of Randonnee rando telemark info.

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Backcountry skiing is a dangerous sport. You may be killed or severely injured if you do any form of ski mountaineering, skimo randonnee and randonnée skiing. The information and news on this website is intended only as general information. While the authors and editors of the information on this website make every effort to present useful information about ski mountaineering, due to human error the information, text and images contained within this website may be inaccurate, false, or out-of-date. By using, reading or viewing the information provided on this website, you agree to absolve the owners of Wild Snow as well as content contributors of any liability for injuries or losses incurred while using such information. Furthermore, you agree to use any of this website's information, maps, photos, or binding mounting instructions or templates at your own risk, and waive Wild Snow its owners and contributors of any liability for use of said items for backcountry skiing or any other use.

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