Alpinestars Nucleon KR-1i Back Protector Insert



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:
    • XS-SM: Small Nucleon
    • MD-2XL: Medium Nucleon
  • Men's Jacket:
    • 48-50 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 Only 2 Left: Ships next business day
MD 1012261 6504115-12-M In Stock: Ships next business day
LG 1012262 6504115-12-L In Stock: Ships next business day