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Amplify your backcountry performance.
Taking the Prime System to the next level, the Karakoram Prime-X Splitboard Binding separates itself from the SL by shaving off 85 grams of weight and increasing the stiffness of the chassis. Then, a 7075-T6 aluminum toestay adds flex underfoot to absorb harsh chatter and keep foot fatigue at bay, while a Reaction highback supports, flexes where you need it, and responds insanely fast. This results in a performance that allows you to travel lighter, faster, and longer, and most importantly, ride harder than anyone else.
Equipped with a Reaction highback, the Prime-X's high-quality Dupont Zytel ST highback optimizes its strength-to-weight ratio, and maintains a medium flex for lateral support when you need it most. A stiffer flex is found in the Open Binding chassis for unrivaled response and an uncompromising board feel, while the X-Type Heelcup offers high sidewalls for more support and better power transfer while side-hilling. This heelcup is also made from 7075-T6 aluminum, which is twice as strong as standard aluminum, and is cored out for featherweight performance.
The Prime-X features Dual Ride-Stride forward lean that quickly toggles between Ride and Walk modes with a 1/4-turn of the forward lean adjuster. In Walk mode, the -8 degree forward lean elongates your stride to conserve energy on the long uphill skin. Ride mode delivers 0 to 22 degrees of forward lean (2 degree adjustable increments) for quick-turning response when you're charging steeps. Then, its Solid Ride four-point attachment increases your stance options (-30 to 30 degrees) and improves ergonomics. Four wide preloaded contact points direct energy to the edges for unmatched response and control when you're riding high-consequence terrain.
The Flip-Speed Riser deploys with the simple flick of your pole basket to get you moving upwards with zero hassle, and features different heights for different terrain. Engage the shorter riser on long, flatter approaches or flip the taller riser during intimidating, steeper climbs. The heel lock-down is ideal for skating across flats and side-steeping small hills, while the quick-release touring bracket makes for fast-and-easy transitions from touring to riding without taking your foot out of the binding. Best of all, the Prime Interface has no moving parts, so you never have to worry about losing parts in the snow.
- Strong, light, and fast split binding for demanding BC days
- Reaction highback is cored out and offers medium flex
- Quick and convenient switch from tour to ride mode
- Stiffer open Binding chassis enhances overall response
- Solid Ride design eliminates slop in the seam
- Dual forward lean option for walking comfort
- Karakoram creates splitboard solutions in Washington, USA
- Item #KRM001E
- Q & A
Roman Wall, Mount Baker
Light is right
- Familiarity: I've put it through the wringer
At first I didn't think splitboard bindings could get better than the Prime1s I'd been using for 2 years, well I was wrong. The new chassis design is sleeker, lighter, lower profile and yet provides improved performance.
From the first ride I could tell the combination of higher grade aluminum and new highbacks were making the binding more responsive than I was used to.
Pros: Light. Responsive. Sleeker profile while touring. Compatible with Prime1 interface and Quiver Connectors I already had. Easier to fit to boot. Cored out toe pieces help with set up.
Cons: Price.. granted 1\3 of the cost is the interface, these aren't an entry level product. Set up time, although easier than the Prime1 it still takes some time to get your stance dialed in. Toe straps take some getting used to, I treat them like a step in style but thinking about putting on standard toe straps.
All in all I believe these are the best preforming splitboard bindings out there. These are a step way up so if you're looking for a responsive ride that doesn't compromise in terms of weight this is it.
Considering that nearly all the parts of the bindings are made in Washington state if not the USA speaks volumes.
There might be another binding that is better, but I"ve not seen it. I know a lot of people don't like moving parts and well.. these probably aren't for that person.