Spark D Rex ST Pro Crampons

The Spark D Rex ST Pro Crampons are lightweight, hardboot-specific splitboard crampons that give you dependable bite and control when the skin track turns firm, steep or downright nasty.

Designed for riders on Spark-style tech toes and hardboot setups, the D Rex ST Pro slides directly into Spark’s crampon claw mounts for fast, on-the-fly deployment when conditions demand more than skin grip. Made from high-strength 7075 aluminium, they are thin and low-drag but still tough enough for proper no-fall terrain. An overmoulded ST axle keeps installation, rotation and removal smooth, even in cold, gritty conditions. Nesting design means the pair stacks together neatly in your pack, and the included riser blocks let you keep the full depth of the teeth engaged when you flick your heel risers up for steeper climbs. Available in Regular (boards under 26 cm waist) and Wide options, they are a clean, confidence-boosting match for Spark x ATK Tech Toes and compatible Dynafit-style toes.

Hardboot-specific design:

• Slides into Spark tech toe claw mounts for secure, direct hardboot crampon engagement.

7075 aluminium body:

• Strong, thin and low-drag construction to handle icy sidehills with less weight on your feet.

ST overmoulded axle:

• Smooth, low-friction rotation and easier installation compared with the older brass axle design.

Nesting profile:

• Dual-width design lets crampons stack together to save precious space in your pack.

On-the-fly install:

• Slide sideways into and out of the claw mounts without needing to fully strip your setup.

Riser blocks included:

• Stackable blocks keep teeth biting fully when you are climbing on heel risers in steeper terrain.