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Alpinestars Nucleon KR-Cell CiR Chest Protector

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The Nucleon KR-CELL CiR has been designed to offer protection to track and sports bike riders while ensuring maximum levels of breathability and comfort.

  • The Nucleon KR-CiR is a high performance, super lightweight track and race chest protector featuring the Nucleon Cell technology.
  • The double-layered chest shell plate is constructed from a high performance polymeric material blend for optimized flexibility and excellent weight saving properties.
  • The chest protector’s structure design and structure changes from the centre towards the outside and provides the perfect balance between force dispersion and energy absorption.
  • Unique CELL microstructure is designed for advanced energy absorption, adaptivity, maximum breathability and air flow.
  • Ergonomic protection plate contours to the natural curve of the back ensuring optimum fit while riding.
  • Soft comfortable airmesh on the body side of the protector offers maximum breathability and rider comfort.
  • According to European statutory law the CE mark is a conformity requirement for the marketing of the product.
  • The following standard apply:
  • Level 2 EN 1621-3:2018