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The Weston Gnarnia Splitboard is your go-anywhere, send-any-line machine—born for big freeride missions from blower pow in hidden bowls to spicy spring couloirs. With its dialed taper and setback, it floats effortlessly on deep days while staying precise and dependable when the terrain gets technical. Built with a carbon-reinforced core, durable topsheet, and all the power and pop you need for the ride down, the Gnarnia Split is ready to crush the uptrack and rule the descent.
Camber Profile | Freeride – Subtle rocker in the nose and tail provide additional float without losing stability. Camber underfoot provides confident edge hold and pop.
Flex Rating – Sizes 147-151 | Flex 6/10 // Sizes 154-166 | Flex 8/10
Tapered Directional Shape
Wood Core – Paulownia / Poplar / Bamboo
Tri-Axial Fiber Glass – Multi-axis, stitched fiberglass laminate that offers a precise and responsive ride in any terrain or snow conditions.
Carbon Fiber Stringers – 2x Tip to Tail + S Weave
Polyurethane – Polyurethane is poured during construction to form a single, unified piece of sidewall wrapping around the entire core for increased strength and durability. Because of this process, it also creates less waste material than other sidewall options.
Sintered Durasurf 4001 – The gold standard in bases. The 4000-series sintered bases have a higher density than other options on the market, and are therefore more durable. Additionally, it absorbs more wax, making for a faster and smoother ride. 4000-series PTEX is usually reserved for only top-of-the-line boards due to a higher manufacturing cost, but at Weston it’s the minimum standard.
Aluminum Tip + Holeless
Castor Bean Based Rugged Nylon Topsheet
Split-Tech – Shifted Touring Bracket Position
Clips – Karakoram UltraClip 2.0
Tip & Tail Clips – Karakoram Tip-Loc
Skin Attachment – Tip Holes + Tail Notches
Standard Splitboard Insert Pattern
| Size | 147 | 151 | 154 | 158 | 162 | 162W | 166W |
| Effective Edge (mm) | 1120 | 1150 | 1190 | 1220 | 1250 | 1250 | 1280 |
| Tip Width (mm) | 288 | 290 | 299 | 304 | 310 | 322 | 327 |
| Waist Width (mm) | 244 | 246 | 252 | 256 | 262 | 273 | 276 |
| Tail Width (mm) | 279 | 281 | 290 | 295 | 301 | 313 | 318 |
| Sidecut Radius (m) | 9.3 / 7.4 / 7.1 / 8.4 | 9.5 / 7.6 / 7.3 / 8.6 | 9.7 / 7.8 / 7.5 / 8.8 | 9.9 / 8 / 7.7 / 9 | 10 / 8.1 / 7.8 / 9.1 | 10 / 8.1 / 7.8 / 9.1 | 10.2 / 8.3 / 8 / 9.3 |
| Rider Weight (lbs) | 90-150 | 105-165 | 105-165 | 125-185 | 145-205 | 160-220 | 180+ |
| Width | Regular | Regular | Regular | Regular | Regular | Wide | Wide |
The Karakoram Ultra Ranger + Split Interface Splitboard Bindings are built for riders who want to charge hard, go light, and own every line. With a featherweight Carbon Nyolite chassis, cushy EVA footbeds, and ESP damping, your feet stay stoked whether you're skinning up or smashing through chunder. Active Joining tech locks your board together for max edge hold—so go ahead, hit that windlip like you mean it.
Smooth Touring Pivot – Independent sleeves rotate freely on a fixed thru-axle, similar to a bike axle, making these stiff and smooth. They're wide for touring rigidity, they shed snow well, and the quick-releasing bracket allows for simple transitions.
Dual Ride Stride – Saving energy in the backcountry can be the difference between going for a second lap, going for a longer tour, or going home because you’re wiped out. All Karakoram splitboard bindings come standard with Dual Ride-Stride forward lean. With a -8° forward lean setting, Stride Mode allows you to stride and glide further with every step. Dual Ride modes allow you to effortlessly switch between railing carves and surfing turns. Drive Mode consists of a preset user-adjustable forward lean (0°-22°), and surf mode can be activated without unstrapping (11° or 0°). Simply turn and go. Dual RideStride is the fastest and easiest forward lean adjustment available.
Dual-Speed Riser with Heel Lock Pole Basket Flip – Flip up/down with pole basket on the fly. Retractable Heel-Lock included.
Active Joining – No slop with instant response. Pre-loaded contact points create an ultra solid connection between your bindings and splitboard.
Ride Mode 3.0 – Lighter. Better. Faster. Stronger. A smaller footprint with less material makes the Ride Mode 3.0 the lightest splitboard interface. More clearance for snow makes Drop-On changeovers better and faster. Active Joining pulls your splitboard together and keeps your feet spring-loaded to the board, giving you direct power transfer to the edge and instant response in a way that passive, slip-fit puck splitboard systems cannot.
Seam Lock – Patent pending cove and bead seam lock eliminates seam movement underfoot in all directions.
Direct Power Transfer – Wide binding contact = power transfer directly to edges & tip to tail.
Carbon Nyolite Chassis
EVA Footbeds
Elastomeric Damping Pads (ESP)
Chassis Feel – 6 (1 Soft - 10 Stiff)
Ankle Strap – Aggressive
Highback Feel – 8 (1 Soft - 10 Stiff)
Compatible with Standard Splitboard Inserts
Split Interface Included (W/ Ride Mode 3.0)
Materials – Carbon Nylite, Stainless Steel, 7000 series Aluminum, P-lite, Hytrel
| Size | S | M | L |
| Weight (g) | 700 |
Mohair / Nylon Blend – Kohla Austrian construction makes the lightest most durable plush, with the perfect balance of grip and glide.
Wire Rope Tip Clip – Easy install and removal from tip of board.
Universal Tail Clip – Fits to multiple splitboard tail configurations.
Easy Peel – Kohla Smart Glue Technology allows for optimal adhesion while being easy to separate.
Waterproof – Sealed with Kohla’s Patented PFC-free Vulcanized Rubber. Prevents water absorption. Keeps skins sticking to ski base in Spring conditions.
| Size (mm) | S (145-154) | M (153-161) | L (160-169) |
| Weight (g) | 250 |