The Alpinestars SM3 Heat helmet is designed for motocross, enduro, and off-road riders who need dependable impact protection, ventilation, and all-day comfort. This Large helmet features a gloss yellow fluo and black finish and uses a thermo-injected shell made from an impact-resistant thermoplastic polymer blend. Varying shell thicknesses help balance protection and reduced weight, while a composite fiber layer between the outer shell and EPS liner adds another level of impact management. Manufacturer part number 8301026-5011-L and vendor part number 8301026-5011-L identify this Alpinestars helmet.
Feature: Optimized off-road protection The chin area and shell construction are engineered for demanding motocross, enduro, and off-road riding conditions. A six-piece EPS liner uses five densities to place the appropriate energy-absorbing material in key impact zones. The polished EPS surface and low-friction coating help reduce rotational acceleration associated with certain oblique impacts.
Feature: Adjustable comfort fit Crown and cheek pads allow the fit to be tailored to the rider's head, while removable cheek pads support easier helmet removal during an emergency. The 3D-contoured comfort foam improves contact and cushioning, and the recycled-material comfort liner helps reduce the product's environmental impact. A soft 1-inch chin strap and stainless steel D-rings provide secure, comfortable retention.
Feature: High-efficiency ventilation Ten air inlets and seven exhaust ports promote airflow and heat exchange during active riding. The visor is shaped to direct air toward the ventilation channels, and the visor release system is calibrated to release at a predetermined force to help reduce loads on the rider's neck during an impact. Integrated hydration tube channels in the cheek pads add convenience for long rides. The helmet also includes an Emergency Release System for safer service and removal procedures.
Features:
- Size: Large
- Model: SM3 Heat
- Color: Gloss Yellow Fluo/Black
- Brand: Alpinestars
- Manufacturer part number: 8301026-5011-L
- Vendor part number: 8301026-5011-L
- Application: Motocross, enduro, and off-road riding
- Construction: Thermo-injected impact-resistant thermoplastic shell with a composite fiber intermediate layer
- Impact management: Six-piece EPS liner with five densities and low-friction rotational impact coating
- Ventilation: Ten intake ports and seven exhaust ports
- Fit system: Adjustable crown and cheek pads with stainless steel D-ring retention
- Safety: Emergency Release System, removable cheek pads, and calibrated visor release system
- Comfort: Recycled-material comfort liner, 1-inch soft textile chin strap, and 3D-contoured foam
- Convenience: Integrated hydration tube channels in the cheek pads