Full-face road racing helmet features ultra-lightweight materials, a supremely aerodynamic profile with inter-changeable rear spoilers, an extensive ventilation system and unsurpassed levels comfort.
Homologated to ECE 22.06, DOT, and FIM standards, the Alpinestars Supertech R10’s shell construction utilises a highly advanced molding technology with a multi-composite combination featuring a 3K high-density carbon outer layer, a uni-directional carbon composite layer, an aramid fiber layer, and a fiberglass layer. The 3K high-density carbon outer layer provides excellent strength and efficiency of energy dissipation over the shell. The combination of material layers provides improved energy management, as well as limited outer shell deflection, making the energy spread wider and better absorbed by the EPS liner.
Designed and developed for professional MotoGP athletes where going faster and being protected is the goal. By minimizing drag and ensuring optimal aerodynamic stability, air management outside and inside of the helmet, and a comfortable, customizable fit, the S-R10 Miller Helmet ensures the overall experience in racing and sport riding is fit for champions.
The S-R10 has been developed in the full-scale wind tunnel since the beginning of its development. Aerodynamic targets for the coefficient of drag in different head positions, as well as stability at different angles were a primary goal in the helmet shape development, first extensively developed with Computational Fluid Dynamics (CFD), then validated in the full-scale wind tunnel, and finally on track. The result is a helmet that achieves the lowest level of drag, and the highest level of aerodynamic stability at high speed compared to any other race helmet that Alpinestars have tested in the wind gallery.
When it comes to ventilation and breathability, there are 11 ventilation ports, not including the eyeport, with 7 intakes including 3 in the chinguard and 4 on the top of the helmet, plus 4 exhausts, with 2 lateral ports on the chin bar, and 2 on the top rear of the helmet. These ventilation ports integrate directly with the helmet’s shell with a series of air ducts through the inner EPS liner. With the S-R10, airflow comes in through the ports, as well as actively circulates over and around the rider’s head through a series of channels, and then gets extracted out the back of the helmet.
The Supertech R10 helmets include both clear and dark smoke visors, tear-offs set, Pinlock® lens, chin curtain, and wind and breath deflectors.
Inner shell
The S-R10’S inner shell is made from EPS in different densities. The S-R10 Helmet has four inner shells just like the outer shell, and is available in four anatomical sizes. The Supertech R10’s construction is optimised to ensure riders have the correct fit, which not only improves comfort and reduces overall weight but most importantly, improves the effectiveness of the helmet in an impact. Underneath the helmet’s outer shell is an eight-piece multi-density EPS liner, with six specific densities that are strategically positioned in different zones to ensure excellent energy absorption from impact forces dissipated over the outer shell, as well as a close and comfortable fit. The EPS liner, just like the outer shell, has its own unique dimension for each helmet size, further tailoring the helmet’s performance and fit when it comes to protection and comfort.
Visor features
The visor mechanism is fitted with metal lock levers to to prevent unwanted visor detachment during impacts and/or crashes, which are locked in the closed position by a front metal hook. The cinematic movement is engineered to perfectly seal the visor against the shell’s rubber window trim. The shield is engineered with an impressive wide lowered eyeport on the sides for enhanced peripheral vision, offering 220-degrees of lateral and 57-degrees of vertical visibility and providing a maximized field of view in the riding position and providing great rider comfort.
Additionally, the visor itself can be easily changed or removed thanks to its secure and toolless quick-release system. The S-R10 is fitted with an ECE 22.06 Homologated Optical Class 1 Shield, 3mm in thickness, and coated with an anti-scratch and anti-fog treatment. The shield is equipped with internal pins to accommodate a Pinlock® 120XLT - 100 % MaxVision lens and external pins to accommodate tear-offs.
Aerodynamics
Developed with CFD simulations, validated in the wind tunnel and on track, the S-R10 helmet is optimised forlow drag performance and maximum aerodynamic stability. The S-R10 Helmet’s aerodynamic spoilers are fitted with an Alpinestars patented release system, with elastic joints that help the spoiler detach from the helmet shell if it is subjected to a significant impact, no matter what the angle, to reduce potential rotational energy.
The helmet also comes with lateral winglets to further support the S-R10’s stability and improve aerodynamic drag. In addition, the helmet visor has turbulators to improve aero-acoustic performance. As a result, compared to the aerodynamic performance of the helmet fitted with the standard road spoiler, the S-R10 itself is already the top-performing, aerodynamic helmet Alpinestars has tested, and with the configuration of the race spoiler (sold separately) and the aero winglets together, Alpinestars Helmet Development team have achieved a reduction in drag for the helmet of an additional 4.54%.
Helmet shell
Ventilation
Aerodynamics
Visor
Interior
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