Alpinestars Nucleon KR-1 Cell Back Protector Helmet Accessories 18mm wheel adapter and adapter

18mm wheel adapter and adapter for duck head ratchet system

Hand welded throughout

Manufactured from aircraft grade aluminum and powder coated for durability

Optimized air circulation through various vents and internal ventilation channels

2-Layer fixed waterproof membrane for proven wet weather performance

Alpinestars Nucleon KR-1 Cell Back Protector Helmet Accessories 18mm wheel adapter and adapterAlpinestars Nucleon KR1 Cell Back Protector The Alpinestars Nucleon KR1 Cell Back Protector uses Cell Technology for a lightweight back protector with plenty of flexibility. Add the KR1 underneath your race suit or whatever gear you're running for a full coverage back protector that straps to your body. Features: Cell Technology back protector is constructed from a high performance polymeric material blend for optimized flexibility and excellent