Altitude Offroad Helmet

 SIZE CHART
$100.00 to $209.95
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You're going to LOVE the fit. Try it for 30 days and experience our perfect fit. If you don't love it, send it back for an exchange or full refund*. Risk free.
*Exchange and refunds only apply to orders placed from Ride509.com.

The Altitude Offroad Helmet is the result of a fearless desire to not only create but innovate. Through careful review of this Helmet performance to fit, our Altitude Offroad Helmet is nearly perfect. With DOT & ECE 2205 safety certifications the Altitude Offroad Helmet doesn't skimp on safety either. You won't want to take this helmet off, so you can stay out longer and ride farther.



  • Comes standard with universal camera mount
  • Comes standard with Fidlock® easy-open magnetic strap clasp
  • Innovative aerodynamic channels & 8 intake/exhaust vents
  • 8 sizes across 3 outer shell molds ensure excellent fit
  • Meets and exceeds DOT & ECE 2205 safety certification standards
  • Revolutionary neck brace ready shell profile
  • Dual density, interlocking eps
  • Removable, washable premium liner
  • Youth shell starts at 1260 grams
  • Special designed expanded polyurethane chin insert
  • Class leading eye port opening dimensions, which provide optimum peripheral vision
  • Perfect 509 goggle fit
  • One-piece eye port trim


The Altitude Offroad helmet meets or exceeds DOT & ECE 2205 safety certification standards. It features an innovative dual density, interlocking EPS foam liner that provides top crash protection in the event of an accident.


Innovative aerodynamic channels run across the entire contour of the helmet. The Altitude Offroad helmet features 6 integrated vent scoops that provide necessary ventilation to keep you comfortable when riding. Overall the Altitude features 8 total intake/exhaust vent ports.


The Altitude was designed with two key fit metrics in mind: Rider fit & Goggle fit. First, we created a custom interior EPS, matched with a premium removable liner. And because fit is only as good as the overall weight, the Altitude starts at a class leading 1260g.


We wanted this helmet to not only perform at the highest level, but to look good doing it. The shell features sleek, yet aggressive lines that provide an innovative and unmatched look. Everything - from the integrated front mouth vent, to the innovative ventilation channels, to the sweeping upward-kicked visor - provides a flowing and seamless transition. Each Altitude comes standard with an innovative universal camera mount that mounts securely in seconds to the top visor mount.

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Adult Helmet Size Chart

Measuring the circumference of head, just above the top of the ears and brows.

Youth Helmet Size Chart

Measuring the circumference of head, just above the top of the ears and brows.