Alpinestars S-R10 MARTHAINATOR Full-face helmet - Blue / BlackRef : AP4312

Design and Materials

• Multi-layer outer shell made of 3K carbon, unidirectional carbon composite, fiberglass/nylon, and aramid fibers to optimise strength while minimising weight
• Aerodynamic outer shape with side fins to stabilise the helmet at high speeds and reduce drag by 4.54% while riding
• Profiled chin guard with a recess at the collarbone to decrease contact points and enhance comfort during braking
• Net weight of 1540 g for a controlled mass that helps reduce fatigue over long distances

Protection and Reinforcements

• Multi-density EPS inner shell for optimised absorption of linear and oblique impacts, reducing the energy transmitted to the rider
• ERS system facilitating quick removal of cheek pads by medical personnel in case of intervention
• Aerodynamic spoiler equipped with a patented release system that can detach in the event of a significant impact to limit stress on the head and neck
• Metal locking levers on the visor mechanism to reduce the risk of accidental detachment and maintain visibility while riding

Ventilation and Breathability

• 11 ventilation points with 7 inlets (3 chin, 4 forehead) and 4 extractors to ensure effective removal of hot air
• Central intake panel directing air to the top of the head to improve airflow at the forehead and reduce heat
• Two extractors under the rear spoiler enhancing the extraction of hot air to maintain a more comfortable internal temperature

Comfort and Ergonomics

• Premium removable, washable, and hypoallergenic inner padding to maintain hygiene and comfort over time
• A-Head adjustment system allowing height and angle of the helmet to be customised for a stable and personalised riding position
• Hydration tube predisposition enabling hydration without removing the helmet during long rides

Practicality and Features

• Clear wide-angle AFHS-01 optical class 1 visor with scratch-resistant treatment for clear and durable vision
• 220° lateral and 57° vertical field of vision for better environmental awareness in turns and traffic
• Quick-release tool-free system with Pinlock® and tear-offs predisposition for easy visor changes and to limit fogging
• Delivered with an additional tinted visor, wind deflector, nose guard, chin pads, and ear cushions for immediate and adaptable use