Alpinestars S-M3 Radium Black White Gray Glossy Motocross & Enduro Helmet
Alpinestars S-M3 Radium Black White Gray Glossy - Racing design and enhanced safety for off-road use
A technical helmet, soberly stylish and built to take it. With the S-M3 Radium, you leave nothing to chance, neither on the track nor on the trails.
Sobriety in style, radicalism in protection: the Alpinestars S-M3 Radium Black White Gray Glossy helmet is aimed at the most demanding riders, whether they ride motocross, enduro or leisure off-road. It combines a sleek black, white and gray glossy look with cutting-edge technologies developed by Alpinestars.
The shell is made of multi-density thermo-injected polymer, with variable thicknesses to absorb impact effectively while keeping weight down (1430g in ECE). The EPS padding, cut into 5 parts with 4 different densities, distributes impact forces in a targeted manner.
And for oblique impacts, often underestimated, Alpinestars has integrated a patented low-friction inner lining, imitating cerebrospinal fluid and reducing rotational forces on the brain.
Add to this a formidable ventilation system (10 inlets, 7 outlets), a visor that channels air and intelligently detaches in the event of a fall, adjustable foams, a lining made from recycled materials, and you have a complete, reliable and comfortable helmet for all your sessions.
Key features :
- All-round protection: Reinforced shell, multi-zone EPS and rotational technology.
- Ultra-efficient ventilation: 17 ventilation channels with channeling visor.
- Long-lasting comfort: soft, removable, washable and adjustable interior.
- Sleek and stylish design: Black, white and glossy grey for a discreet yet assertive style.
- 3 shell sizes: Precise fit for every body type.
Technical specifications :
- Shell material: Thermo-injected polymer with variable thicknesses
- Screen type: Off-road helmet without screen
- Fastening system: Stainless steel double D chin strap
- Weight: 1430g (ECE) / 1460g (DOT)
- Approvals: ECE 2206 & DOT
- Number of outer shells: 3 sizes
- Internal EPS: 5 zones with 4 densities
Advantages :
- Complete safety, including oblique impacts, thanks to patented Alpinestars technology.
- Scalable comfort, thanks to replaceable foams of different thicknesses.
- Perfectly ventilated, even in the heat or during intense exertion.
Care instructions :
Wash foams by hand with mild soap, then leave to air dry. Clean the shell with a damp, non-abrasive cloth. Store your helmet in its cover to protect it from dust and scratches.
Frequently asked questions :
Is this helmet competition-approved?
Yes, it's ECE 2206 & DOT approved, perfect for intensive sports use.
Can I customize comfort?
Yes, the inner liner and cheekpads are available in a range of sizes and thicknesses.
Is the visor detachable?
Yes, it features a controlled release system patented by Alpinestars.
Order the S-M3 Radium Black White Gray Glossy on iCasque now, and equip yourself for riding in style, comfort and serenity on any terrain.
- Brand :
- Alpinestars
- Model :
- S-M3 Radium Black White Gray Glossy
- Style :
- Off-Road
- Colour :
- Black
- Gender :
- Adult
- Best uses :
- All terrain
- Shell type (detail) :
- Thermoplastic
- Number of shells :
- 3
- Paint type :
- Gloss
- Screen Type :
- No visor
- Interior :
- Removable, washable
- Included accessories :
- Case
- Chin strap :
- Double D
- Approvals :
- ECE 22.06, DOT




















