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509

509 Altitude Carbon Helmet

Item: P343991

The 509 Altitude Helmet is a sleek yet aggressive helmet, now crafted from carbon fiber. It features an innovative dual density, interlocking EPS foam… Read More

$279.97
$399.95
Save $119.98 30%
Rebate Available! View Details
Please select a Color & Size to view availability.

Product Details

509 Altitude Carbon Fiber Helmet

The 509 Altitude Helmet is a sleek yet aggressive helmet, now crafted from carbon fiber. It features an innovative dual density, interlocking EPS foam liner that provides top crash protection in the event of an accident. The front chin area of the helmet is protected by a specially designed expanded polyurethane chin insert that provides front impact protection. The outer shell is made of specially designed carbon fiber for maximum shell strength with minimal weight.

Features:

  • Carbon fiber outer shell for max strength with minimal weight
  • Innovative dual density interlocking EPS foam liner
  • Front chin protection from specially designed expanded polyurethane chin insert
  • Innovative aerodynamic channels across the entire helmet direct air flow into 6 integrated vent scoops
  • 8 intake/exhaust vent ports
  • Cold weather breath box included
  • Lock-top center mount for the aerodynamic visor
  • 3 shell sizes
  • Premium removable liner
  • Neck brace ready
  • Eyeport fits 509 Sinister X5 and Aviator goggles
  • Integrated front mouth vent
  • Innovative universal camera mount that attaches to top visor in seconds
  • Fidlock magnetic technology easy open strap clasp 
  • Fidlock magnetic technology easy open strap clasp (3XL/4XL use 2 D-rings and strap)
  • Meets or exceeds DOT and ECE safety certification standards
  • Helmets sized 2XL and larger use 509 XL goggles
Shape: Intermediate Oval

Weight: 2.81 lbs.
What's this?
Product Style RevZilla Item # MFR. Product # Availability
Product Style XS / Matte Lime RevZilla Item #1146732 MFR. Product #509-HEL-ACL-XS AvailabilityAvailable: Requires 4-6 business days of lead time prior to shipment
Product Style SM / Matte Lime RevZilla Item #1146733 MFR. Product #509-HEL-ACL-SM AvailabilityAvailable: Requires 4-6 business days of lead time prior to shipment
Product Style MD / Matte Lime RevZilla Item #1146734 MFR. Product #509-HEL-ACL-MD AvailabilityIn Stock: Ships within 24 hours
Product Style LG / Matte Lime RevZilla Item #1146735 MFR. Product #509-HEL-ACL-LG AvailabilityOut of Stock
Product Style XL / Matte Lime RevZilla Item #1146736 MFR. Product #509-HEL-ACL-XL AvailabilityOut of Stock
Product Style 2XL / Matte Lime RevZilla Item #1146737 MFR. Product #509-HEL-ACL-2XL AvailabilityOut of Stock

509 Helmet Sizing

Size Head (cm)
XS 53-54
SM 55-56
MD 57-58
LG 59-60
XL 61-62
2XL 63-64
3XL 64-65
4XL 66-67

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.


How to Measure

  • H Head
    Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
Product Description
Part Numbers
Sizing & Fit
0 Customer Reviews
4 Questions & 1 Answers

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