Sizing & Fit
509 Altitude Particle Helmet
Just like the Altitude Carbon, the 509 Altitude Helmets now include the revolutionary Fidlock easy open magnetic strap. The Altitude is the result of a fearless desire to not only create, but innovate. It is the product of looking at every feature and asking the tough question how can it be improved. The result is a helmet designed and built from the ground up with 4 ideals in mind: Safety, Performance, Fit, and Style. Featuring a dual density, interlocking EPS foam liner that provides top crash protection in the event of an accident. in addition 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 a specially designed thermo-plastic poly alloy material for maximum shell strength with minimal weight.
Aerodynamic channels run across the entire contour of the helmet. These channels are integrated into the shell and direct air flow into the specially designed vent scoops. The Altitude 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. And for those cold days, snap in the included cold weather breath box. The unique aerodynamic visor features a locking top center mount that holds the visor in place and prevents unwanted visor movement. The eyeport of the Altitude Helmet was carefully crafted to fit 509 goggles perfectly.
- Neck brace ready shell profile
- 4 outer shell sizes
- Specially designed thermoplastic poly-alloy outer shell
- Dual density interlocking EPS
- Removable, washable Pro Series liner
- Expanded polyurethane chin insert
- Optimum eyeport opening dimensions for expanded peripheral vision
- Perfect 509 goggle fit
- One piece eye port trim
- 8 total oversize intake/exhaust vents
- Universal camera mount included
- Fidlock easy open magnetic strap
- Breath box
- DOT and ECE certified
- Helmets sized 2XL and larger use 509 XL goggles
|Product Style||RevZilla Item #||MFR. Product #||Availability|
|Product Style LG / Hi-Viz||RevZilla Item #1305802||MFR. Product #F01000100-140-501||AvailabilityOut of Stock: This item is unavailable and will not be coming back in to stock.|
509 Helmet Sizing
Sizing information is provided by the manufacturer and does not guarantee a perfect fit.
How to Measure
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.
Sizing & Fit
3 Customer Reviews
4 Questions & 3 Answers