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Spark R&D Arc ST 25/26

€549.95
€469.00
Splitboard interface -10% discount
If a Ride interface (for descending) is not included with the binding your options will be shown below.
Splitboard crampons -10% discount
Crampons are not a necessity for a functional setup, however they are essential in a full backcountry equipment.
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In short

The Spark R&D Arc ST has undergone some changes. The Arc's lightweight frame, comfortable medium flex straps and highbacks turn this binding into one of the best and surfy splitboardbindings on the market. The design is simple and durable which is nice when circumstances get difficult. ST stands for 'smooth touring' where friction and wear are eliminated. The whammy bar (heel riser) is connected to the binding and ensures that the crampons are always fully engaged. The addition of the skipole adjustable heel riser makes this one of the most practical bindings in the field. The perfect binding for any splitboarder heading for the backcountry. 

In detail

PERFORMANCE

The light weight properties are mainly in the milled CNC baseplate, stripped of all unused material. The chassis sidewalls have remained filled to enhance durability and strength. The Arc ST uses the medium-flex Asym Rip 'N' Flip highbacks, improving ergonomics and longevity. The bindings are equipped with Smooth Touring (ST) touring brackets, these brackets are made of a mix of aluminum and thermoplastics, which reduces friction and thus increases the lifespan.

  • Arc ST CNC Base Plate
  • Arc ST Asym Rip 'N' Flip highback

COMFORT

The Arc and the Surge are both equipped with the Pillow Line Straps. These straps are 3D-shaped from a single piece of plastic. This gives them a good lifespan and makes them more malleable, so that they fit optimally on your boot. The Arc ST strap is the softer flexing one with a cutout in the middle. Spark R&D uses time-tested Burton Buckles in all of their closures on any strap.

The ST Whammy Bar heel riser is built into the baseplate and ensures that the crampons, regardless of the heel riser, fully engage. The Whammy Bar has an ST overmold. During the overmold process, plastic is poured over the metal parts to make it stronger and more durable. 

  • Arc ST Pillow Line Straps
  • Ladders
  • ST Whammy Bar
  • Burton Buckles

TOURING

The Spark R&D Arc ST uses the well-known Tesla T1 system. This system works with a heel riser in the baseplate and the Snap Ramp click system for converting interface. This makes it easy to mount the binding on Voile and Spark pucks. The ST Bracket has thermoplastic overmolded holes. This ensures less friction and a 4x longer lifespan.

  • Tesla T1 System

 

Specifications

Spark R&D Unisex Bindings Sizechart
Size US Men's US Women's EU Mondo (MP)
XS < 7 < 8 < 39 < 24.5
S 7 - 8.5 8 - 9.5 39 - 41 24.5 - 26
M 8.5 - 10.5 8 - 9.5 41 - 43 26 - 27.5
L 10.5+ 11.5+ 43+ 27.5+
Important details
Season 2025-2026
Flex Medium
Weight 628g