ALPINESTARS Nucleon KR Cell Back Protector Smoke / Black / Red

Nucleon KR-Cell Back Protector

The Nucleon KR-Cell Back Protector is engineered for riders demanding the highest levels of safety, ventilation, and ergonomic performance. Developed with advanced polymeric materials and a multi-layer construction, it provides optimal impact absorption while ensuring exceptional comfort during long rides.

Key Features & Benefits

• Multi-Size Ergonomic Design
  Available in three length options (waist-to-shoulder) to ensure a tailored fit for a wide range of body types, enhancing both comfort and safety.

• High-Performance Polymeric Construction
  The hard-shell protector plates are crafted from a proprietary blend of advanced polymer materials, offering a balance of flexibility, reduced weight, and superior impact resistance.

• Tri-Layer Shell with Maximum Ventilation
  Three-layer back plate system, built from single-shot injection-molded panels, absorbs high-energy impacts while maintaining structural integrity and controlled flex. Each layer is highly perforated to promote cooling airflow, significantly reducing heat build-up under riding jackets.

• Ergonomic Rider Fit
  The protector plate is contoured to the natural curvature of the spine, ensuring an anatomical fit. Horizontal flex channels allow the protector to adapt dynamically to different riding positions, from upright touring to aggressive sport riding.

• Ventilated Chassis with Comfort Lining
  A soft, lightweight chassis combined with bio-foam padding delivers superior comfort, moisture-wicking properties, and reduced rider fatigue during extended use.

• Adjustable Fit System

  • Elastic Shoulder Straps – Fully adjustable and removable, featuring a snap-closure system for quick setup and secure positioning.

  • Kidney Belt Support – Wide dual hook-and-loop closure system stabilizes the lower back protector, ensuring a snug, secure fit and minimizing unwanted movement.

• Compatibility & Modularity
  Fully compatible with the Nucleon KR-C chest protector and other Alpinestars modular protection systems, allowing riders to build a customized protection setup tailored to their needs.

Specifications

• Materials: Advanced polymer composites, injection-molded impact shells, stretch textiles, bio-foam comfort lining.

• Protection: CE-certified to EN 1621-2:2014 (Level 1 or Level 2, depending on size).

• Weight: Lightweight construction for reduced fatigue without compromising durability.

• Airflow: Strategically perforated shells and ventilated chassis maximize cooling in all riding conditions.