The 2017 Prime Straighline offers new air form straps, easier camover action for tranistions and new FlipSpeed Risers.
When you‚ve got the muscle to drop backcountry lines at max speeds, keeping the binding stiff as can be is more important than saving weight. Karakorum‚s Prime Straightline Splitboard Binding stiffens up the Prime1 with a carbon fiber highback and their stiffest heelcup, making for a responsive ride, efficient touring and fast transitions. In walk mode, the binding moves back 8 degrees past vertical for long strides; the sleeved axles create a stiff, smooth pivot; the Flip-speed risers adjust to two climbing heights with your pole basket; and offset cradles help to keep snow clear on entry. Switching to ride mode is fast; with no removable parts, there‚s nothing to drop and lose in the snow. In ride mode, the open binding chassis flexes with the board, the bindings allow set-and-forget forward lean up to 22 degrees, and the four attachment points lock both sides of your board together. Other features: Stance angles between 30 and -30 degrees, 0.5 inch stance adjustments, CNC machined parts, on-the-fly heel lockdown.
Board Recommendation: Jones Solution
Sizes: Small (Men‚s 6-8), Medium (Men‚s 8.5-11), L (Men‚s 11.5-13)
Weight: 785g per binding
Stack Height: 14.5mm
Material: Carbon fiber, Aluminum, Stainless Steel, Dupont Zytel ST
Mounting: Exisiting splitboard hole patterns or DIY pattern
Manufacturer Warranty: 2 years
Pros: great engineering and construction, easy to install, smooth in tour mode and solid and confidence inspiring in ride mode.
Coms: snow buildup under the bindings make step in feature in ride mode difficult to impossible. About half the time I just take the bindings off my boots to clear the snow and strap in after they're mounted. The heel lockdowns can't be unlocked with gloves on. I added a loop of half inch webbing to each one, which solved the problem.
All in all worth the money, but your ski friends will still be waiting for you. Karakoram advertises a 2 minute changeover time, but getting there will take a lot of practice.
I seem to be the only person in town rocking the new bindings and everyone wants a look.
New system is a lot more user friendly than the original split30- board goes together smoothly every time. Love the walk mode adjustment, weight (or lack thereof:)), and easy to use heel risers. On the other hand, I seemed to pop out of the heel lock pretty easily (only tried it once and popped out before the hill actually started- reluctant to put any faith in it now). Hope this helps...