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509 Altitude 2.0 Helmet R-Series

out of stock
Original price $449.99
Current price $440.99

THE ALTITUDE  2.0 R-SERIES HELMET IS RACE LEGAL ACROSS ALL FORMS OF ISR RACING EVENTS INCLUDING: Snocross, Hillcross, Grass Drags, Ice Racing, Hillclimb, Snowbike, Cross Country, and Watercross.

The Altitude 2.0 R-Series helmet is part of 509’s Racing collection, for aspiring podium seekers, local racers, and Snow-bike series racers.


• Non carbon fiber hand lay-up 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 
• 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 
• ECE Carbon as low as 1065 grams 
• Race ready Orange to comply with ISR regulations 
• DOT/ECE dual certified helmet to comply with ISR regulations 
• Dual Ring chin strap closure for secure and racing tight

To ensure that the proper sized item arrives, we suggest customers follow brand specific sizing guides. Google and other search engines provide a wealth of information in regards to specific brands sizing. Just because you currently wear a certain size, a new brand may have slightly different fitment specifications. Please reach out to us if you have any questions regarding the fitment of the brands we carry and we can provide you with more accurate sizing charts on a brand-by-brand basis. 1-877-745-4232

As well please use SIZING CHART here.

In order for a helmet to protect properly and be the most comfortable, it must be sized to your head correctly.

The best way to check sizing is to put the helmet on and see that the helmet feels snug equally all around your head. The helmet should not feel too tight or too loose at any particular point around your head.

If you can’t put it on, at all, then that’s obviously too tight. If you can get it on, but it hurts where it presses against your head, that’s also too tight. If it’s snug all around, too snug to chew gum, that’s about right. Don’t forget about that 15 percent to 20 percent break-in that will occur.