Weston Gnarnia Carbon Splitboard — topsheet and base
Weston Gnarnia Carbon Splitboard — topsheet and base

Weston Gnarnia Carbon Splitboard

$1,349.00
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Size

Weston Gnarnia Carbon Splitboard - 151 is currently backordered and we will reach out with in 24 hours with an up-to-date ETA.

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Lightweight Big-Mountain Freeride Splitboard

Weston Gnarnia Carbon Splitboard

The Weston Gnarnia Carbon Splitboard is a lightweight big-mountain splitboard for riders whose objectives are steep and long rather than deep. A tapered directional shape running 310-262-301 mm at 162 cm carries 9 mm of taper, half what the Backwoods runs, and a four-radius sidecut tightening to 7.8 m underfoot holds a line through a turn instead of releasing early. At 2,930 g per board in a 162, on a paulownia and poplar core with vertical aluminum stringers under a carbon layup, the Gnarnia Carbon is built for the day that starts with 4,000 ft of climbing and ends on a technical descent.

Expert Review Ratings and sizing guidance verified against manufacturer specifications.

Is This the Right Splitboard for You?

Best For
Riders chasing steep, technical descents and big vertical who want a composed, stable board at speed and are willing to give up some float to get it at 2,930 g per board in a 162.
Consider Another Splitboard If
Your season is mostly storm days and tight trees, or you want maximum float. At 9 mm of taper the Gnarnia Carbon sinks its tail less than a dedicated powder shape.

CCBB Splitboard Ratings

Uphill Efficiency
4/5
2,930 g per board (162 cm)
Downhill Performance
5/5
Carbon layup, aluminum stringers
Soft Snow Float
4/5
310 mm nose, 9 mm taper
Firm Snow Grip
4/5
Camber underfoot, full inner steel edge

Rating scale: 5 = top of its class, 4 = excellent, 3 = good, 2 = specialized or below average, and 1 = limited.

CCBB Splitboard Profile

Dimensions310-262-301 mm (162 cm)
Turn Radius10 / 8.1 / 7.8 / 9.1 m multi-radial (162 cm)
Rocker ProfileFreeride camber, rockered nose and tail
Flex PatternMid-stiff, tail-weighted balance
Core and LaminatePaulownia and poplar with aluminum stringers, carbon layup
Mount Point20 mm setback, 10 mm on the 151
Skin FitPre-cut, one skin size per board size
Recommended UseBig-mountain and technical backcountry freeride

Why We Like It

  • Nine millimetres of taper is half what the Backwoods carries, and that is the whole character difference: the Gnarnia Carbon keeps its tail engaged through a turn rather than letting it sink, which is what holds a line on a steep, firm face.
  • The sidecut runs four radii rather than three, 10 m at the nose through 8.1 and 7.8 m underfoot to 9.1 m at the tail on the 162, so the edge engages progressively instead of grabbing at the contact point.
  • Vertical aluminum stringers through the paulownia core add torsional stiffness and damping without weight, which is what keeps a 2,930 g board composed at speed rather than nervous.
  • Full perimeter UHMW sidewalls wrap the whole board rather than just the running length, which matters on the rock-strewn transitions and boot-pack scrambles that come with technical objectives.

Best Uses

  • Steep, technical descents and big alpine lines
  • Dawn patrol and high-vertical days
  • Long tours where the descent is the objective
  • Higher-speed riding on open faces
  • Riders 105 lbs and up across the four sizes

Splitboard Selection Advice

The Gnarnia Carbon has the widest rider range of the Weston splits CCBB stocks, and the sizes are genuinely distinct rather than incremental. The 151 is rated 105 to 165 lbs on a 24.6 cm waist to a US 8 boot, the 158 is 125 to 185 lbs at 25.6 cm to a US 10, the 162 is 145 to 205 lbs at 26.2 cm to a US 12, and the 162W shares that length at 27.3 cm for boots to US 14. The 162 and 162W ride the same outline and effective edge, so choose between them purely on boot clearance.

One setup detail is easy to miss: the setback is not the same across the run. The 151 is built with 10 mm of setback and the 158, 162 and 162W with 20 mm. A rider moving up from the 151 inherits an extra centimetre of setback in the shape itself, so the stance does not need shifting back to match. Skins are pre-cut and sold separately, and every size takes a different skin: Splitboard Skin 1 for the 151, Skin 3 for the 158, Skin 4 for the 162 and Skin 5 for the 162W.

Size and setup guidance reviewed by CCBB splitboard staff. Confirm size against your weight, boot size and terrain.

Technical Specifications Full spec table · Click to expand

Shape and Sizing

Sizes
151, 158, 162, 162W cm
Dimensions
290-246-281 mm (151 cm), 304-256-295 mm (158 cm), 310-262-301 mm (162 cm), 322-273-313 mm (162W)
Waist Width
24.6 cm (151 cm), 25.6 cm (158 cm), 26.2 cm (162 cm), 27.3 cm (162W)
Sidecut Radius
Multi-radial. 9.5 / 7.6 / 7.3 / 8.6 m (151 cm), 9.9 / 8.0 / 7.7 / 9.0 m (158 cm), 10 / 8.1 / 7.8 / 9.1 m (162 cm and 162W)
Effective Edge
115 cm (151 cm), 122 cm (158 cm), 125 cm (162 cm and 162W)
Taper
9 mm on all sizes
Setback
10 mm (151 cm), 20 mm (158 cm, 162 cm, 162W)
Weight
2,730 g per board (151 cm), 2,800 g per board (158 cm), 2,930 g per board (162 cm), 3,100 g per board (162W)
Max Boot Size
US 8 men's (151 cm), US 10 (158 cm), US 12 (162 cm), US 14 (162W)
Skin Fit
Splitboard Skin 1 (151 cm), Skin 3 (158 cm), Skin 4 (162 cm), Skin 5 (162W)

Construction and Use

Shape
Tapered directional
Profile
Freeride camber, subtle rocker in the nose and tail with camber underfoot
Core
Strike Split Core, paulownia and poplar with vertical aluminum stringers and bamboo inserts at the binding mounts
Laminate
Carbon fiber layup with flax reinforcement at the touring bracket and insert plates
Base
PTex 5920 graphite with an aluminum tip
Topsheet
Rugged nylon derived in part from castor beans
Sidewall
Full perimeter UHMW, an abrasion-resistant plastic
Edges
Carbon steel, with a full inner edge, sidewall and damping tape along the split seam
Split Hardware
Phantom Herc Hooks with Phantom Spinner tip and tail clips, shifted touring bracket position, tail-heavy balance
Skin Attachment
Tip holes and tail notches, Skinlock compatible
Warranty
4 years
Recommended Use
Big-mountain and technical backcountry freeride

Compare the Weston Gnarnia Carbon

Gnarnia Carbon vs. Weston Backwoods Carbon Splitboard

These two land within 100 g of each other and ride nothing alike. The Weston Backwoods Carbon Splitboard runs 18 mm of taper for float in trees and deep snow; the Gnarnia Carbon runs 9 mm and holds its tail through a turn. Riders whose season is storm days take the Backwoods Carbon, and riders whose season is steep objectives take the Gnarnia Carbon.

Shop the Weston Backwoods Carbon Splitboard

Gnarnia Carbon vs. Jones Howler Splitboard

Both are built for steep terrain from opposite directions. The Jones Howler Splitboard uses full tip-to-tail camber for pop and edge authority at 3,000 g per board in a 158. The Gnarnia Carbon uses a rockered nose with camber underfoot at 2,930 g in a 162, which is more forgiving when the snow turns variable mid-line. Weight is close, so the choice comes down to camber preference.

Shop the Jones Howler Splitboard

Gnarnia Carbon vs. Weston Gnarnia Splitboard

Same outline, different build. The standard Weston Gnarnia Splitboard uses a poplar and paulownia core with triax glass and tip-to-tail carbon stringers at a lower price; the Gnarnia Carbon moves to a full carbon layup over paulownia with vertical aluminum stringers. Shape, taper and setback carry across, so the decision is weight against budget.

Shop the Weston Gnarnia Splitboard

Common Questions

Who should buy the Weston Gnarnia Carbon Splitboard?
The Weston Gnarnia Carbon Splitboard suits riders whose objectives are steep and long rather than deep. Nine millimetres of taper with camber underfoot and a carbon layup at 2,930 g per board in a 162 makes the Gnarnia Carbon a big-mountain and high-vertical board, composed at speed and light enough for a dawn patrol lap.
What bindings and skins work with the Weston Gnarnia Carbon Splitboard?
The Weston Gnarnia Carbon Splitboard takes splitboard-specific bindings that mount to a puck interface and transition between tour and ride mode. Standard solid-board snowboard bindings are not compatible. Skins are pre-cut and sold separately, and every size takes a different one: Splitboard Skin 1 for the 151, Skin 3 for the 158, Skin 4 for the 162 and Skin 5 for the 162W. Skins attach through tip holes and tail notches. Confirm the puck pattern of your binding system against the board before mounting.
Is the setback the same on every Gnarnia Carbon size?
No, and it is worth knowing before you mount. The 151 is built with 10 mm of setback while the 158, 162 and 162W all carry 20 mm. That extra centimetre is in the shape rather than the inserts, so a rider moving up from the 151 should not also shift the stance back to compensate. Taper stays at 9 mm across the whole run.
How do the 162 and 162W differ?
Only in width. The Weston Gnarnia Carbon Splitboard 162 and 162W share a 125 cm effective edge, the same four-radius sidecut and the same 9 mm taper and 20 mm setback. The 162 runs a 26.2 cm waist for boots up to US 12, and the 162W a 27.3 cm waist for boots up to US 14, at 170 g more per board. Choose on boot clearance, not on how you want the board to ride.
What does a four-radius sidecut do?
The Weston Gnarnia Carbon Splitboard blends four radii along each edge rather than one. On the 162 the edge runs 10 m at the nose, 8.1 and 7.8 m through the middle and 9.1 m at the tail. The tighter middle sections make the board initiate a turn quickly for a 125 cm effective edge, and the longer radii at each end let the edge engage and release progressively instead of hooking.
How much does the Weston Gnarnia Carbon Splitboard weigh?
The Weston Gnarnia Carbon Splitboard weighs 2,730 g per board at 151 cm, 2,800 g at 158 cm, 2,930 g at 162 cm and 3,100 g at 162W. That places it among the lighter big-mountain splits, and within 100 g of the Backwoods Carbon despite a very different shape. Any weight quoted without a size attached is incomplete.

Our Verdict

The Weston Gnarnia Carbon Splitboard is the Weston split to pick when the descent is steep rather than deep. A tapered directional outline at 310-262-301 mm carries 9 mm of taper, half the Backwoods figure, and a four-radius sidecut tightening to 7.8 m underfoot lets the edge engage progressively and hold through the turn. Vertical aluminum stringers in a paulownia core under a carbon layup keep the board composed at speed at 2,930 g per board in a 162. Note the setback changes with size, 10 mm on the 151 and 20 mm above it, and choose between the 162 and 162W on boot clearance alone.