ALPINESTARS(MX)

ROOST GRD A-4 PLASMA BLK/RED/W

A-4 Plasma Roost Guard

  • Anatomically profiled for all forms of off-road riding
  • Features a semi-rigid thermoplastic polyhedron design chest protector and a Nucleon Plasma back protector that are engineered to be lightweight, breathable, comfortable, adaptive, and protective
  • Key Features
  • Highly flexible Nucleon Plasma Back Protector constructed from viscoelastic material engineered from biobased polymers and formed into a structure that is pliable in all directions while maintaining the ability to dissipate impact energies
  • Lightweight and highly ventilated, this protector offers strong impact force dispersion and absorption while ensuring maximum coverage areas in all riding positions
  • Lightweight and ultra-vented chest armor
  • The chest outer shell’s design achieves the desired structural strength and imposed load performance when compared to flat or unfaceted surfaces
  • The over-injected flexible side wings of the chest protector follows the body's contours for comfort and freedom of movement
  • Optional Race Kit — Engineered to be compatible with the Nucleon Plasma Extended Roost Coverage kit which includes Upper and Lower Chest Extensions, and an additional Y-Strap System to use the A-4 Chest without the back protector
  • Features highly perforated, adjustable, and detachable rib and shoulder padding for additional rib and shoulder coverage against roost and impact
  • Construction
  • Equipped with adjustable shoulder and side straps for an optimized performance fit
  • Removable soft tactile thermoformed shoulder padding for enhanced rider comfort
  • The lining on the back protector offers a soft tactile feeling against the skin while maintaining the integral structure of the protectors and reducing the risk of any material tearing
  • The lining is ribbed for superior airflow while also reducing the amount of material that is in contact with the skin
  • The perforated 3D mesh chassis also offers additional protection against tire roost
  • Bionic Neck Support compatibility via the BNS shoulder pull tabs
  • USDA certified bio-based eco-friendly and sustainable impact absorbing material
  • Back protector: EN 1621-2:2014 Level 1
  • Chest protector: EN 1621-3:2018 Level 1
  • 40% Polyurethane, 25% Ethylene-Vinyl Acetate, 12% Thermoplastic Elastomer, 11% Polypropylene, 10% Polyester & 2% Other


  • € 172,97 incl. VAT

    In stock

    Ask about delivery time
    We prepare your vehicle for the road
    Large assortment
    Specialized in recreational vehicles
    A-4 Plasma Roost Guard

  • Anatomically profiled for all forms of off-road riding
  • Features a semi-rigid thermoplastic polyhedron design chest protector and a Nucleon Plasma back protector that are engineered to be lightweight, breathable, comfortable, adaptive, and protective
  • Key Features
  • Highly flexible Nucleon Plasma Back Protector constructed from viscoelastic material engineered from biobased polymers and formed into a structure that is pliable in all directions while maintaining the ability to dissipate impact energies
  • Lightweight and highly ventilated, this protector offers strong impact force dispersion and absorption while ensuring maximum coverage areas in all riding positions
  • Lightweight and ultra-vented chest armor
  • The chest outer shell’s design achieves the desired structural strength and imposed load performance when compared to flat or unfaceted surfaces
  • The over-injected flexible side wings of the chest protector follows the body's contours for comfort and freedom of movement
  • Optional Race Kit — Engineered to be compatible with the Nucleon Plasma Extended Roost Coverage kit which includes Upper and Lower Chest Extensions, and an additional Y-Strap System to use the A-4 Chest without the back protector
  • Features highly perforated, adjustable, and detachable rib and shoulder padding for additional rib and shoulder coverage against roost and impact
  • Construction
  • Equipped with adjustable shoulder and side straps for an optimized performance fit
  • Removable soft tactile thermoformed shoulder padding for enhanced rider comfort
  • The lining on the back protector offers a soft tactile feeling against the skin while maintaining the integral structure of the protectors and reducing the risk of any material tearing
  • The lining is ribbed for superior airflow while also reducing the amount of material that is in contact with the skin
  • The perforated 3D mesh chassis also offers additional protection against tire roost
  • Bionic Neck Support compatibility via the BNS shoulder pull tabs
  • USDA certified bio-based eco-friendly and sustainable impact absorbing material
  • Back protector: EN 1621-2:2014 Level 1
  • Chest protector: EN 1621-3:2018 Level 1
  • 40% Polyurethane, 25% Ethylene-Vinyl Acetate, 12% Thermoplastic Elastomer, 11% Polypropylene, 10% Polyester & 2% Other


  • Article number
    27011508:6500526-132-XLX
    Base Color
    Black| Red| White
    Color/Finish
    Black| Red| White
    Gender
    Men's
    Model
    A-4 Plasma
    Product Name
    Guard
    Research Value
    Finalized
    Riding Style
    Adventure Touring / Dual-Sport| ATV| Off-Road| UTV
    Size
    XL/2XL
    Size Group
    Adult
    Style
    Roost Guard
    Type
    Chest
    Units
    Each

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    Specializing in recreational vehicles

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