Alpinestars Supertech R7 Helmet
Features Engineered for peak performance on both track and road, the lightweight S-R7 Helmet blends cutting-edge carbon composite construction with Alpinestars’ technologies Its advanced aerodynamics, optimized airflow, and precision-engineered EPS... Read More
Features
- Engineered for peak performance on both track and road, the lightweight S-R7 Helmet blends cutting-edge carbon composite construction with Alpinestars’ technologies
- Its advanced aerodynamics, optimized airflow, and precision-engineered EPS liner ensure superior protection and all-day riding comfort
- Outer Shell
- Features an advanced multi-composite shell construction using pre-preg epoxy resin for maximum strength and performance
- Its carbon, aramid fiber, and fiberglass layers deliver lightweight yet ultra-protective performance with excellent energy dissipation, radial strength, and penetration resistance
- The streamlined aerodynamic design includes collarbone recesses on each side, fitted with two PLASMA inserts designed to offer high-performance shock absorption and reduce the risk of injuries during a slide
- Engineered for exceptional visibility, the S-R7 offers 220° peripheral vision and 57° vertical vision, enhanced by an optimized eye port and head position
- Inner Shell
- The inner shell features a multi-density EPS liner with seven pieces in six densities, strategically positioned for optimal impact absorption
- The EPS liner is engineered with a dimension specific to each helmet size, matching with the three different outer shell sizes
- The EPS surface is flush and features Alpinestars' coating, developed to deliver proven rotational impact protection
- This low-friction slip plane is designed to mimic the brain’s natural cerebrospinal fluid — the body’s inherent defense against oblique impacts
- By reducing rotational acceleration of the brain within the skull during an impact, this technology helps decrease the risk of concussion and other brain injuries
- Aerodynamics
- The S-R7 Helmet delivers ultra-low drag and exceptional high-speed stability, reducing neck strain
- Its aerodynamically optimized shell features an integrated spoiler developed to minimize turbulence and drag, while lateral winglets further enhance stability and further reduce drag
- Ventilation
- The S-R7 is optimized for airflow with a total of 10 ventilation ports: 6 intake ports (3 in the chin guard and 3 on the top of the head) regulated by a slidable top vent mechanism, plus 4 exhaust ports (2 lateral ports on the chin bar and 2 at the rear of the helmet)
- The incoming air from the chin vents is channeled towards the inner side of the shield, effectively preventing fogging and misting
- The entire top vent section is slidable, allowing riders to reveal three air channels for maximum airflow and cooling performance
- Chin Bar Extractor Vents are designed to efficiently extract humid air from inside the helmet
- Shield
- The helmet is fitted with an ECE 22.06 homologated, optical Class 1 shield, with double-sided anti-scratch treatment
- Shield thickness varies from 1.6 mm on the sides to 2.6 mm in the center
How to measure
Using a measuring tape, measure the head circumference at the head's widest point, just above the eyebrows and the ears. Fine-tuning: the same cheek pads fit all helmet sizes — choose thickness 35 or 40 (optional parts) for a tighter fit. The crown pad varies by helmet size (shared within XS/S and XL/2XL).
Alpinestars size chart
| Size | Head circumference (cm) | Head circumference (inches) |
|---|---|---|
| XS | 53-54 | 20.8-21.2 |
| S | 55-56 | 21.6-22 |
| M | 57-58 | 22.4-22.8 |
| L | 59-60 | 23.2-23.6 |
| XL | 61-62 | 24-24.4 |
| 2XL | 63-64 | 24.8-25.2 |
Youth sizes
| Size | Head circumference (cm) | Head circumference (inches) |
|---|---|---|
| YS | 48-49 | 18.9-19.3 |
| YM | 50-51 | 19.6-20 |
| YL | 52-53 | 20.4-20.8 |
One effective adult chart covers the whole current line: Alpinestars publishes separate street (Supertech R10) and off-road (Supertech M10/S-M10, SM7, SM3) size-guide assets, but the circumference values are numerically identical. Inch values are MANUFACTURER-PRINTED decimals, not our conversions. Label normalized: charts print the largest size as XXL but Alpinestars' own variant pickers use 2XL. Adult range is XS-2XL only (no 3XL+); youth range is YS-YL only (no YXL — the only youth helmet is the SM3 Youth). Discontinued/nonexistent models as of Jul 2026: Supertech M8, M5, SM5 (discontinued), SM8 (never existed) — current MX lineup is Supertech M10, SM7, SM3, SM3 Youth. SR10 shell mapping: shell S=XS+S, M=M, L=L, XL=XL+2XL. Verified on US + Canadian storefronts (identical CDN chart images); EU not independently verified. Verified from alpinestars.com official size-guide images 2026-07-14.
Manufacturer sizing data · verified July 14, 2026