Arc St Snowboard Bindings - Copper 2027
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Arc St Snowboard Bindings - Copper 2027
Quick Specs
| Binding Style | Splitboard (softboot) |
| Flex | Medium |
| Terrain | Backcountry, trees, powder, complex conditions |
| Touring System | Tesla T1 Tech (12°/18° heel lift, ST Whammy Bars) |
| Forward Lean | Tool-free, 0° to 22° ride / -13° tour flip |
| Weight | 1.38 lb/ea (628 g), 2.77 lb/pr (1,256 g) (Medium) |
| Compatibility | Tesla T1 Tech system; all puck-compatible splitboard bindings |
| Sizing | Unisex |
| Patent | Patented |
Product Description
The Arc ST is a splitboard-specific binding engineered for riders who demand lightweight efficiency without sacrificing mountain-ready confidence. CNC-machined baseplates shed grams where it counts, while medium-flex highbacks and straps deliver a surfy, agile feel through trees and powder. The Tesla T1 Tech touring system transitions seamlessly between ride and tour with tool-free lever adjustments. Built for backcountry adventurers tackling complex terrain and long expeditions.
Product Details
| Baseplates | CNC Machined: machined cutouts reduce weight to a minimum, lighter than the solid Surge ST baseplate |
| Highbacks | Arc ST Asym Rip 'N' Flip: molded with moderate glass fiber fill for a medium, surfy response. Asymmetrical left/right design angles inward to match each foot's natural stance. Tool-free micro-adjustable forward lean from 0° to 22°; adjuster flips to -13° for tour mode. Stiff toe-to-heel with torsional flex for riding mobility. Lateral slots accept BD Touring Strap |
| Ankle Straps | Arc ST Pillow Line: one-piece molded construction with a compact footprint and wide flex window for maximum agility. Lightweight, ultra-durable, waterproof and cold-proof |
| Ladders and Adjusters | Produced in-house from a proprietary thermoplastic blend that holds flex performance across a wide temperature range |
| ST Tech Components | Snap Ramps: locking ramps that secure bindings to touring brackets; flip down to ride, flip up to remove · ST Brackets: touring brackets with Smooth Touring thermoplastic overmolding for smooth glide and maximum durability · ST Whammy Bars: overmolded side-arm levers that reduce friction for ultra-smooth transitions between stowed, low, and high heel-lift positions |
| Tesla T1 Tech System | Spark R&D's benchmark splitboard touring platform. Integrated ST Whammy Bar levers switch heel lift between stowed, low (12°), and high (18°) using poles, with no glove removal needed |
Arc St Snowboard Bindings - Copper 2027 FAQ
Are the Arc ST bindings compatible with my splitboard setup?
Yes. The Arc ST runs on the Tesla T1 Tech system and is compatible with all puck-compatible splitboard bindings. They work with Spark R&D's ST pucks (Flat or Canted) and mount on any board built for the puck interface.
What kind of rider and terrain are these designed for?
The Arc ST is built for backcountry splitboard touring: trees, powder, complex conditions, and long expeditions. With medium flex straps and highbacks, they're best suited to all-mountain touring riders who want responsive feel without going full stiff.
How do the highbacks flip for touring mode?
The Asym Rip 'N' Flip Highbacks flip tool-free between ride and tour mode. In ride mode, forward lean is micro-adjustable from 0° to 22°. Flip them and they drop to -13° for skinning, giving your ankles full range of motion on the climb.
How does the heel lift system work on the skin track?
The Tesla T1 Tech system integrates ST Whammy Bar side arm levers, which you operate with a pole tip. You switch between stowed, low (12°), and high (18°) heel lifters without removing your gloves or stopping. It's designed for efficient transitions on steep climbs.
How do the straps hold up in cold and wet conditions?
The Pillow Line ankle straps are one-piece molded construction: durable, waterproof, and will not freeze. The ladders and adjusters are made in-house from a custom thermoplastic blend formulated to maintain flex across a wide temperature range, including deep cold.
How much does the Arc ST weigh, and why does that matter for touring?
The Arc ST weighs 628g per binding (1,256g per pair) in Medium. For splitboard touring, binding weight adds up on every uphill step. The CNC machined baseplate uses cutouts specifically to reduce weight without sacrificing the rigidity you need on the descent.
Can I add a BD Touring Strap to these bindings?
Yes. The Arc ST highbacks have lateral slots specifically designed to accept a Black Diamond Touring Strap, so you can add extra security on steep or technical skin tracks without any modification.