Weston
Gnarnia Splitboard
Gnarnia Splitboard
In stock
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Send it deeper, float it steeper - this is your big freeride weapon. Skintrack to Summit to Send.
The Gnarnia Splitboard is Weston’s go-to for riders chasing big objectives in variable conditions - designed to charge hard, float deep, and adapt to whatever the backcountry throws at you. A moderate taper (~9mm) and setback stance gives you effortless float on storm days, while maintaining stability and control on steep, firm descents.
Under the hood, it’s built with our Freedom Split Core - a lightweight combo of poplar and paulownia with bamboo stringers for durability, power, and uphill efficiency. Tip to Tail Carbon Stringers enhance skintrack response and provide torsional stiffness for confident downhill performance plus S-Weave Carbon woven into the core loads up that “send it to the moon” pop. The Rugged Topsheet resists chipping and scratching, while the Sintered Durasurf 4001 Base keeps things fast even when the snow gets sticky.
To dial it in for touring, we feature our SplitTech design with inside edges optimized for skinning traction and tail-shifted balance for easier kick turns and smoother touring, Stainless Steel Edges and Full-Perimeter UHMW Sidewalls for long-term durability. It’s also compatible with our Skinlock System for secure skin attachment and easy transitions. Designed with input from Weston athletes and guides, every line, flex, and tech choice is rider-driven and built to last - backed by our 4-Year Warranty and Board Slayer Program.
From long alpine missions to powder-stacked trees, the Gnarnia Split balances weight, performance, and durability - making it a true quiver killer for freeride-focused backcountry riders.
Designed in Colorado, Manufactured at GP87
Artwork by: John Fellows


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TECH
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FEATURES
- Wood Composition || Poplar | Paulownia | Bamboo
- Shape || Tapered Directional
- Camber Profile || Freeride
- Topsheet || Castor Bean Based Rugged Nylon
- Layup Fibers || Tri-Axial Fiber Glass
- Carbon Fiber Stringers || 1x Tip to Tail + S-Weave
- Base Material || Sintered Durasurf 4001 + Aluminum Tip + Holeless
- Sidewall || Ultra-High-Molecular-Weight Polyethylene (UHMW)
- Split-Tech || Shifted Touring Bracket Position
- Clips || Karakoram UltraClip 2.1
- Tip & Tail Clips || Phantom Spinner
- Skin Attachment || Tip Holes + Tail Notches
AWARDS
2026 Backcountry Mag Gear Guide Select
SIZING
Size (cm) | Recommended Rider Weight (lb / kg) | Recommended Rider Height (in / cm) | Max Boot Size (US Men) | Max Boot Size (US Women) | Mondo | Euro |
---|---|---|---|---|---|---|
147 | 90-150 / 41-68 | 61-65 / 1.55-1.65 | 8 | 9 | 26 | 40.5 |
151 | 105-165 / 48-75 | 64-68 / 1.63-1.73 | 8 | 9 | 26 | 40.5 |
154 | 105-165 / 48-75 | 64-68 / 1.63-1.73 | 9.5 | 10.5 | 27.5 | 42.5 |
158 | 125-185 / 57-84 | 67-71 / 1.70-1.80 | 10 | 11 | 28 | 43 |
162 | 145-205 / 66-93 | 69-74 / 1.78-1.88 | 12 | 13 | 30 | 45.5 |
162W | 165-225 / 75-102 | 69-74 / 1.78-1.88 | 14 | 15 | 32 | 48 |
166W | 180+ / 82+ | 73+ / 1.85+ | 14 | 15 | 32 | 48 |
SKIN COMPATIBILITY
Size | Skin Selection |
---|---|
147 | Splitboard Skin 1 |
151 | Splitboard Skin 1 |
154 | Splitboard Skin 2 |
158 | Splitboard Skin 3 |
162 | Splitboard Skin 4 |
162W | Splitboard Skin 5 |
166W | Splitboard Skin 5 |
SPECS
Gnarnia Splitboard Specs
Size (cm) | Effective Edge (cm) | Sidecut (mm) | Waist Width (cm) | Tip / Tail Width (cm) | Taper (mm) | Setback (mm) | Board Weight (lb / g) |
---|---|---|---|---|---|---|---|
147 | 112 | 9.3/7.4/7.1/8.4 | 24.4 | 28.8 / 27.9 | 9 | 10 | 6.14 / 2790 |
151 | 115 | 9.5/7.6/7.3/8.6 | 24.6 | 29 / 28.1 | 9 | 10 | 6.25 / 2840 |
154 | 119 | 9.7/7.8/7.5/8.8 | 25.2 | 29.9 / 29 | 9 | 20 | 6.01 / 2730 |
158 | 122 | 9.9/8/7.7/9 | 25.6 | 30.4 / 29.5 | 9 | 20 | 7.41 / 3370 |
162 | 125 | 10/8.1/7.8/9.1 | 26.2 | 31.0 / 30.1 | 9 | 20 | 7.72 / 3510 |
162W | 125 | 10/8.1/7.8/9.1 | 27.3 | 32.2 / 31.3 | 9 | 20 | 7.94 / 3610 |
166W | 128 | 10.2/8.3/8/9.3 | 27.6 | 32.7 / 31.8 | 9 | 20 | 8.01 / 3640 |
4 YEAR WARRANTY
We're pumped to offer one of the longest warranties in the industry. We offer a 4 Year Warranty because we believe in creating bomber product. Our boards should last as long as possible to reduce the impact on mother earth. LEARN MORE.
SHIPPING
Shipping is generally 3-5 business days but may take longer depending on location. We ship from Denver and our warehouse is open Mon-Fri. Delivery dates are never guaranteed. Ask info@westonbackcountry.com for special requests for expedited shipping and / or finding a dealer.
We ship through UPS and USPS, if shipping is not available to your address please send an inquiry to info@westonbackcountry.com
*Free return shipping on misshipments only. Please ask info@westonbackcountry.com for help with sizing.
*We are not liable for damage to product as a result of mishandling by delivery companies or theft. We strongly recommend purchasing shipping insurance which is available at checkout.
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