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Alpinestars Nucleon KR-1i Insert

The 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.
SKU: 6504115

Availability: In stock


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Product Description



• NUCLEON KR-1i Hybrid Back Protector Insert is CE certified to Level 2 (EN1621-2:2014)

• Lightweight construction with perforated hard shell and energy absorbing foam.

• Hybrid  back protector insert offers excellent impact resistance, while being flexible and anatomically contoured.

• Innovative cooling airflow channel system offers optimized levels of protection and comfort for sport and street riding.

• Dimensions: SMALL = 15.5 x 9.5 inches, MEDIUM = 16.5 x 10 inches, LARGE 17.5 x 10.5 inches





Additional Information

Additional Information

Part Number6504115

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