Alpinestars Nucleon KR-1i Back Protector Insert


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Alpinestars Nucleon KR-1i Hybrid Back Protector Insert

The Alpinestars Nucleon KR-1i Hybrid Back Protector Insert is CE certified Level 2 to the latest back protector standard revision which incorporates energy absorbing foam and a perforated hard shell core for excellent safety and comfort.


  • Women's Stella Jackets:
    • 36-38 or XS-SM: Small Nucleon
    • 40-50 or MD-3XL: Medium Nucleon
  • Men's Jacket:
    • 44-50 or XS-MD: Medium Nucleon
    • 52-64 or LG-4XL: Large Nucleon
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Product Style Item # Manufacturer Product # Availability
SM 1012260 6504115-12-S In Stock: Ships within 24 hours
MD 1012261 6504115-12-M In Stock: Ships within 24 hours
LG 1012262 6504115-12-L In Stock: Ships within 24 hours