Skip to content
Free Shipping on orders over $69.99 to the continental 48 (Alaska & Hawaii orders, call 402-214-0706 to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
Free Shipping on orders over $69.99 to the continental 48 (Alaska & Hawaii orders, call 402-214-0706 to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!

Alpinestars SM3 Radium Helmet

by ALPINESTARS
Availability:
47 in stock, ready to be shipped
Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
Availability:
42 in stock, ready to be shipped
Availability:
Out of stock
Availability:
Out of stock
Availability:
13 in stock, ready to be shipped
Availability:
7 in stock, ready to be shipped
Availability:
21 in stock, ready to be shipped
Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
$279.95 - $279.95
$279.95
$279.95 - $279.95
$279.95
Options: SM3 RADIUM HELMET BLK/WHT/GRY GLOSSY 2X | 482-001812X | 8300826-1546-XXL

Features

  • Conforms to both DOT and ECE 2206 standards, ensuring safe use worldwide.
  • The patented visor release system minimizes forces on the neck by releasing the visor with a precisely calibrated amount of force during impact.
  • Features 10 inlets and 7 exhaust ports for maximum airflow and effective heat transfer, keeping you cool during intense rides.
  • Alpinestars' patented low-friction coating on the EPS liner reduces rotational acceleration forces from oblique impacts.
  • Mimics the brain’s natural defense system with a slip-plane layer for added protection.
  • Thermo-injected polymer blend with variable thickness delivers optimal impact protection without compromising on weight.
  • Engineered for ease of use, offering a snug yet breathable fit for extended riding sessions.