The Alpinestars SM3 Heat helmet is engineered for motocross, enduro, and off-road riding, delivering a balanced combination of impact protection, low weight, ventilation, and rider comfort. This 2XL helmet features a gloss white, purple, and pink finish and uses a thermo-injected shell made from an impact-resistant polymer blend. Varied shell thickness helps optimize protection while keeping the helmet lightweight and comfortable for extended riding sessions.
Its protective construction includes a composite fiber layer positioned between the outer shell and EPS liner, along with a six-piece, multi-density EPS liner designed to manage impact energy effectively. The polished inner EPS surface uses a low-friction coating to help reduce rotational acceleration during certain oblique impacts. The inner and outer surfaces are engineered to help minimize oblique-impact forces, while the visor release system is designed to release at a predetermined force to help reduce stress on the rider’s neck during an impact.
Ventilation is supported by ten intake ports and seven exhaust ports, with the visor directing airflow into the helmet for improved heat transfer. Crown and cheek pads allow the fit to be tailored to the rider, and the removable cheek pads support the Emergency Release System for safer helmet removal. Recycled-material comfort liner construction helps reduce environmental impact, while integrated hydration tube channels add convenience during demanding rides. A soft 25 mm chin strap and stainless steel D-rings provide secure, comfortable retention.
Fitment: Designed for riders participating in motocross, enduro, and off-road applications. This helmet is sized 2XL and should be selected according to the rider’s measured head circumference and the manufacturer’s fit guidance. The manufacturer is Alpinestars, and the vendor part number is 8301026-2052-XXL.
Features:
- Size: 2XL
- Model: SM3 Heat
- Color: Gloss white, purple, and pink
- Brand: Alpinestars
- Manufacturer: Alpinestars
- Vendor Part Number: 8301026-2052-XXL
- Application: Motocross, enduro, and off-road riding
- Shell Construction: Thermo-injected impact-resistant thermoplastic with varied thickness for optimized protection and reduced weight
- Impact Protection: Composite fiber layer and six-piece, five-density EPS liner for targeted impact absorption
- Rotational Impact Management: Low-friction coating helps reduce rotational acceleration during certain oblique impacts
- Ventilation: Ten intake ports and seven exhaust ports provide high airflow and heat transfer
- Visor System: Visor directs air into the ventilation ports and releases at a predetermined force during an impact
- Fit Adjustment: Crown and cheek pads allow the fit to be tailored to the rider
- Emergency Removal: Emergency Release System with removable cheek pads supports safer helmet removal
- Comfort: Recycled-material comfort liner, contoured foam, and soft 25 mm chin strap
- Hydration Compatibility: Integrated hydration tube channels in the cheek pads
- Retention: Stainless steel D-rings provide secure fastening