Spark R&D - Arc ST Pro binding - Black

The lightest and highest performing splitboard bindings in the world - made with incredible attention to detail and no compromises. Arc Pro splitboard bindings feature all the same great assets as our standard Arc bindings - T1 technology, Tesla snap ramps, maximum baseplate cutouts, surfy highbacks, Pillow Line Straps with a flex window - but they are tuned up with premium materials and custom versions. We used carbon-reinforced nylon in the highbacks, full Pebax® plastics for the straps, ladders and adjusters, 7075 aluminum in the heel loops allowing us to make them thinner and lighter, 7 custom made screws and hardware pieces, and lastly, we hollowed out the steel pivot pins to shave a few more grams. Learn more about the Pro Series on the Pro Binding Tech page. Pebax® Pillow Line Straps Arc Pro Pillow Line Straps are made with Pebax® plastics, a premium material most often found in high-end ski boots as it provides consistent stiffness and improved toughness in cold temperatures while being 20% lighter. Like our standard pillow line straps, they are ultradurable, comfortable, waterproof, one-piece molded construction, and produced 100% in-house. Strap pillows are thin and flexible for a comfortable, conformed fit, while thicker ribs are held off the boot and provide support for a uniquely responsive ride. Arc Pro ankle straps are smaller around the boot than the Surge Pro and feature a flex window for max agility while maintaining support. The toe straps come in one construction for both Arc Pro and Surge Pro models, and are designed to be used as a toe cap but also fit traditionally over the top. Carbon Reinforced Highbacks The Arc Pro Rip 'N' Flip highback is made from carbon-reinforced nylon in a ratio designed for medium flex and a surfy feel. This material blend is more responsive, lighter, and stiffer than our standard glass-reinforced highbacks. All Rip 'N' Flip highbacks incorporate a tool free forward lean adjuster (FLAD) for complete customization from 0° to 22° in ride mode. The Forward Lean Adjuster toggles easily between forward lean position and -13° touring position for easy transitions. Whammy Bar Climbing Wire A single fatty climbing wire is built into the baseplate with a side arm lever for easy position changes on the steeps. You can switch easily from stowed, to low (12°), to high (18°) and back again while touring. Pro Hardware Weight savings add up by replacing stainless steel hardware with custom-made 7075-T6 aluminum hardware. Aluminum parts are 65% lighter than our standard stainless steel parts and are made with hex drives instead of phillips heads which are less likely to strip.