509 Altitude 2.0 Carbon Fiber Helmet | Black Ops

Altitude 2.0 Carbon Fiber Helmet

Black Ops / 2XL
$279.96 $399.95
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509 Altitude 2.0 Carbon Fiber Helmet | Black Ops
  • 509 Altitude 2.0 Carbon Fiber Helmet | Black Ops
  • 509 Altitude 2.0 Carbon Fiber Helmet | Black Ops
  • 509 Altitude 2.0 Carbon Fiber Helmet | Black Ops
  • 509 Altitude 2.0 Carbon Fiber Helmet | Black Ops
  • 509 Altitude 2.0 Carbon Fiber Helmet | Black Ops
  • 509 Altitude 2.0 Carbon Fiber Helmet | Black Ops
Altitude 2.0 Carbon Fiber Helmet

Altitude 2.0 Carbon Fiber Helmet

$279.96 $399.95
ColorBlack Ops
Size

509 – Helmets

  • A properly fitted helmet is snug with even pressure all around — never painful. The liner breaks in after several hours of riding.
  • Between sizes? Try both — no helmet protects well if it's too uncomfortable to wear.

Adult

XSSMMDLGXL2XL3XL4XL
Head (cm)53–5455–5657–5859–6061–6263–6464–6566–67
Head (in)20⅞–21⅛21⅝–21⅞22½–22⅝23¼–23½24–24¼24¾–2525¼–25¾26–26¼
US hat size6⅝–6¾6⅞–77⅛–7¼7⅜–7½7⅝–7¾88¾9

Youth

YSYMYL
Head (cm)47–4849–5051–52
Head (in)18⅛–18⅞19¼–19⅝20–20½

Measure the circumference of your head just above the top of your ears and eyebrows

509 helmets fit similar to KLIM — same head measurement, same size

How to measure

Using a flexible tape, measure the circumference of your head just above the top of your ears and eyebrows. Measure a few spots and use the largest number.

Reinvented to ride even harder, the second generation of the bestselling 509 Altitude series unleashes a whole new animal. Leading the charge is the 509 Altitude 2.0 Carbon Fiber Helmet with a new hand lay-up carbon composite construction that’s lighter, stronger, and straight-up sleeker than anything before it. For those who like to get aggressive, it includes the Fidlock® magnetic strap buckle for easy one-handed operation, a built-in universal camera mount, plus airflow control venting

509 Altitude 2.0 Carbon Fiber Helmet Features:

  • Hand lay-up carbon fiber composite construction
  • XS to 4X sizes available in three shells for optimal fit and minimal weight
  • Upper vents with on/off shutter closure for airflow control
  • Fidlock chinstrap strap closure for easy in and out
  • Go-Pro® mounting capability, improved design
  • Perfect fit between helmet eyeport and 509 goggles
  • Pro-Series Breathbox for complete protection, removable for optimal air flow 
  • 509 helmet bag included
  • Starting weight 1150 grams

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