Unapologetically stiff and powerful, the Surge is built for big days on big lines. (This is the T1 version of Spark's discontinued AfterBurner binding.) Featuring a solid baseplate design, stiffer version of the new Rip 'N' Flip Highback, wide supportive ankle straps and a toe cap strap to keep you locked into place. All of this equals more power with greater control in demanding terrain. This binding is preferred by our bigger, more aggressive riders.Maximum power, unparalleled performance, and designed for efficiency: the Surge will put a charge in your backcountry riding! Includes Tesla touring brackets, Tesla T1 heel rests, and Spark Pocket Tool.One Climbing Wire: T1 stands for OneWire. Because that's all you need. A single fatty wire built into the baseplate switches easily from stowed, to low (12 deg), to high (18 deg) climbing positions and back again while touring. Eliminating the second wire saves weight and fiddle time.