Pro-Level Icy Ascent Traction for Hardboot Splitboarders.

Engineered specifically for hardboot splitboard setups utilizing Tech Toe touring brackets, the Spark R&D D-Rex ST Pro Crampons deliver maximum grip, reduced weight, and rock-solid reliability on frozen skin tracks, wind-scoured ridges, and steep firm ascents. Building on Spark's proven D-Rex design, the ST Pro version incorporates premium materials and smooth Smooth-Touring (ST) tech for effortless installation on high-alpine missions.

The D-Rex ST Pro slides sideways into the Tech Toe mount without needing to step out of your bindings or remove your hardboots. 

• Pro Series Upgrades: Constructed with high-strength 7075 aluminum and lightweight custom hardware to shed weight while maximizing strength and rigidity.

• On-the-Fly Installation: Slides sideways directly into Spark Tech Toe crampon mounts without needing to unstep from your boot or remove your binding.

• ST (Smooth Touring) Technology: Brass bushings and engineered pivot points reduce friction for smooth, fluid motion on every stride.

• Aggressive Tooth Geometry: Deep, biting teeth penetrate hardpack snow and wind-scoured ice to maintain grip on steep side-hills and high-exposure traverses.

• Hardboot Specific Fit: Purpose-built for hardboot splitboarding, ensuring clean clearing around Tech Toe brackets and boots.

• Storage Pouch Included: Comes with a durable storage sack to protect your pack lining from sharp crampon teeth during transit.