Alpinestars A-4 Plasma Roost Guard - Black/Red/White

Alpinestars A-4 Plasma Roost Guard - Black/Red/White

2701-1507

Features 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. Read more

$ 189.95
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  • Authorized Dealer
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  • Earn 5% Ride Rewards on every purchase

We are an Authorized Dealer for all the Brands that we sell. Below are the links to our distributors who authorize us to carry what we sell.
Helmet House Authorized Dealer
Helmet House is our distributor for...
SHOEI - HJC - ALPINESTARS - CORTECH - TOURMASTER - SENA - SIDI
 
Parts Unlimited Authorized Dealer
Parts Unlimited - Drag Specialties - LeMans Corp is our distributor for...
ARAI - ALPINESTARS - THOR - ICON - MOOSE RACING - Z1R - SENA - DUNLOP - METZELER - FMF - MOTUL - MAXIMA - RENTHAL - YOSHIMURA - TWIN AIR - ODI - 100% - SPECIALIZED - CRANKBROTHERS - MICHELIN - AGV - FACTORY EFFEX - AFX - AND MORE!
https://www.parts-unlimited.com/find-dealer (Type in 91320 for our zip code)
Parts Unlimited is the largest powersports distributor in the United States. They are now the exclusive distributor for Arai Helmets in the U.S.. Their house brands are Icon, Moose, Thor, AMS, Z1R, Arctiva and more.
WPS Authorized Dealer
WPS - Western Power Sports is our distributor for...
ALPINESTARS MX - GAERNE - FLY RACING - ODI - FMF - SCORPION - MIKA METALS - HIGHWAY 21
Western Power Sports or WPS is the faster growing distributor currently. Their house brands are Fly Racing and Highway 21.
Turn14 Distribution is our distributor for...
ANSWER - MSR - PRO TAPER - FMF - GAERNE - ACERBIS - ATHENA - DRAGONFIRE - CYCRA - EVS - FIRSTGEAR - SPEED & STRENGTH - GIANT LOOP - RIVER ROAD - USWE - VANCE AND HINES - WISECO
Turn14's house brands are Answer, MSR, Pro Taper, Renthal, Vance & Hines, Firstgear, and Speed & Strength.
O'Neal Authorized Dealer
Ogio Authorized Dealer
O'NEAL & OGIO POWERSPORTS is our distributor for...
O'Neal - OGIO
O'neal doesn't have a dealer locator but we buy direct from O'Neal and also use them for OGIO Powersports as they are the U.S. distributor for OGIO POWERSPORTS. OGIO is owned by Callaway Golf.
 
 
 
 
 
 

Features

  • 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