Alpinestars Sm5 Bond Helmet
The SM5 Bond Helmet from Alpinestars is a high-performance motocross/off-road helmet built for riders who demand lightweight protection, ventilation, and safety for MX, dirt-bike, dual-sport or trail riding.
Key Features
-
Lightweight thermo-injected polymer outer shell for strong impact resistance and reduced weight.
-
Multi-density EPS inner liner engineered for optimal impact absorption across different zones.
-
Special inner-shell + liner design that mitigates linear and rotational forces on oblique impacts (resin-coated inner shell surface, independent liner-shell joint).
-
Emergency Release System (ERS) with removable cheek pads — allows safe removal by trained medical personnel in case of crash.
-
Quick-release visor system (no screws) flush to the shell for safety, easy maintenance, and cleaning.
-
Excellent ventilation thanks to multi-air inlets and exhaust ports, plus internal air-channel network for efficient heat exchange — good for long trail or hot-weather rides.
-
Hydration-tube compatible channels routed through the cheek pads (ideal for long rides or enduro use).
-
Anti-microbial, moisture-wicking and removable/washable liner & cheek pads (comfort + hygiene).
-
Secure retention: 26 mm textile chin strap + stainless-steel D-rings.
Materials & Construction
-
Thermo-injected polymer outer shell (two shell-size design) for structural strength and uniformity.
-
Multi-density EPS liner sized to helmet size to provide optimized impact absorption.
-
Visor and shell geometry are designed to reduce collarbone load in falls, thanks to sculpted chin-bar area and softer EPS + rubber-compound extension.
Certifications