Skip to Main Content

Extend Your Ride Season! Shop The Collection

Insta360 Sale: Save Up To 25% On 360 Cameras!

Need Tires? Get Up To $70 Back On Bridgestone*

5% Cash Back, 10% Off Select Brands & More Perks With RPM*

F216DFA3-1CFF-4B9B-9A3E-BCB1D82A7E3E@1x Shop Your Ride
Search Suggestions
View All Results
Menu
Free Shipping over $49.99Learn More ZillaCash: $5 for every $100Learn More Customer Service From RidersLearn More
509

509 Altitude 2.0 Helmet

Item: P1027949
4 Read 4 Reviews 3 Q&As Write a Review

Reinvented to ride even harder, the second generation of the bestselling 509 Altitude series unleashes a whole new animal. Lighter, stronger, and even… Read More

509 Snow Helmets Review
Acid Green
Fullscreen Zoom
$299.95$329.95 Price depends on product options. Make a selection to update price.
Rebate Available! View Details

Ways to earn:

You'll earn up to $15.00 in ZillaCash
OR
Add To Wish List

This item Ships FREE
Guaranteed Low Price
Military and First Responder Discount
509 Altitude 2.0 Helmet
(1 item)
Demo - Good
$263.96
View Item
509 Snow Helmets Review

Product Details

Helmet shape is Intermediate Oval

Shape: Intermediate Oval

What's this?

509 Altitude 2.0 Helmet

Reinvented to ride even harder, the second generation of the bestselling 509 Altitude series unleashes a whole new animal. Lighter, stronger, and even more comfortable thanks to a new hand lay-up fiberglass construction, the 509 Altitude 2.0 Helmet excels in any terrain or condition. Includes the Fidlock magnetic strap buckle for easy one-handed operation, plus customizable features like a removable Pro-Series Breathbox to get you through a full season of extremes.

Features:

  • Hand lay-up fiberglass composite construction for stronger, lighterweight, and better fit construction
  • DOT/ECE certified in USA
  • One piece eye port trim
  • 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 great air flow
Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style 2XL / Acid Green RevZilla Item #10327214 Store Sku MFR. Product #F01009400-160-306 AvailabilityAvailable: Ships in 3-5 business days
Product Style XL / Acid Green RevZilla Item #10327215 Store Sku MFR. Product #F01009400-150-306 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style LG / Acid Green RevZilla Item #10327216 Store Sku MFR. Product #F01009400-140-306 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style MD / Acid Green RevZilla Item #10327217 Store Sku MFR. Product #F01009400-130-306 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style SM / Acid Green RevZilla Item #10327218 Store Sku MFR. Product #F01009400-120-306 AvailabilityAvailable: Ships in 3-5 business days
Product Style XS / Acid Green RevZilla Item #10327219 Store Sku MFR. Product #F01009400-110-306 AvailabilityAvailable: Ships in 3-5 business days
Product Style 4XL / Acid Green RevZilla Item #10541132 Store Sku MFR. Product #F01009400-180-306 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style 3XL / Acid Green RevZilla Item #10541133 Store Sku MFR. Product #F01009400-170-306 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style 2XL / Galaxy RevZilla Item #10453931 Store Sku MFR. Product #F01009400-160-712 AvailabilityAvailable: Ships in 3-5 business days
Product Style XL / Galaxy RevZilla Item #10453932 Store Sku MFR. Product #F01009400-150-712 AvailabilityAvailable: Ships in 3-5 business days
Product Style LG / Galaxy RevZilla Item #10453933 Store Sku MFR. Product #F01009400-140-712 AvailabilityAvailable: Ships in 3-5 business days
Product Style MD / Galaxy RevZilla Item #10453934 Store Sku MFR. Product #F01009400-130-712 AvailabilityAvailable: Ships in 3-5 business days
Product Style SM / Galaxy RevZilla Item #10453935 Store Sku MFR. Product #F01009400-120-712 AvailabilityAvailable: Ships in 3-5 business days
Product Style XS / Galaxy RevZilla Item #10453936 Store Sku MFR. Product #F01009400-110-712 AvailabilityAvailable: Ships in 3-5 business days
Product Style 2XL / Lemon Pop RevZilla Item #10453937 Store Sku MFR. Product #F01009400-160-501 AvailabilityAvailable: Ships in 3-5 business days
Product Style XL / Lemon Pop RevZilla Item #10453938 Store Sku MFR. Product #F01009400-150-501 AvailabilityAvailable: Ships in 3-5 business days
Product Style LG / Lemon Pop RevZilla Item #10453939 Store Sku MFR. Product #F01009400-140-501 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style MD / Lemon Pop RevZilla Item #10453940 Store Sku MFR. Product #F01009400-130-501 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style SM / Lemon Pop RevZilla Item #10453941 Store Sku MFR. Product #F01009400-120-501 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style XS / Lemon Pop RevZilla Item #10453942 Store Sku MFR. Product #F01009400-110-501 AvailabilityAvailable: Ships in 3-5 business days
Product Style 4XL / Red/Black RevZilla Item #10327206 Store Sku MFR. Product #F01009400-180-104 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style 3XL / Red/Black RevZilla Item #10327207 Store Sku MFR. Product #F01009400-170-104 AvailabilityOut of Stock: Enter your email address below to be notified when this item is available.
Product Style 2XL / Red/Black RevZilla Item #10327208 Store Sku MFR. Product #F01009400-160-104 AvailabilityAvailable: Ships in 3-5 business days
Product Style XL / Red/Black RevZilla Item #10327209 Store Sku MFR. Product #F01009400-150-104 AvailabilityAvailable: Ships in 3-5 business days
Product Style LG / Red/Black RevZilla Item #10327210 Store Sku MFR. Product #F01009400-140-104 AvailabilityAvailable: Ships in 3-5 business days
Product Style MD / Red/Black RevZilla Item #10327211 Store Sku MFR. Product #F01009400-130-104 AvailabilityAvailable: Ships in 3-5 business days
Product Style SM / Red/Black RevZilla Item #10327212 Store Sku MFR. Product #F01009400-120-104 AvailabilityAvailable: Ships in 3-5 business days
Product Style XS / Red/Black RevZilla Item #10327213 Store Sku MFR. Product #F01009400-110-104 AvailabilityAvailable: Ships in 3-5 business days
Product Style 2XL / Ultrabeast Red RevZilla Item #10541140 Store Sku MFR. Product #F01009400-160-105 AvailabilityAvailable: Ships in 3-5 business days
Product Style XL / Ultrabeast Red RevZilla Item #10541141 Store Sku MFR. Product #F01009400-150-105 AvailabilityAvailable: Ships in 3-5 business days
Product Style LG / Ultrabeast Red RevZilla Item #10541142 Store Sku MFR. Product #F01009400-140-105 AvailabilityAvailable: Ships in 3-5 business days
Product Style MD / Ultrabeast Red RevZilla Item #10541143 Store Sku MFR. Product #F01009400-130-105 AvailabilityAvailable: Ships in 3-5 business days
Product Style SM / Ultrabeast Red RevZilla Item #10541144 Store Sku MFR. Product #F01009400-120-105 AvailabilityAvailable: Ships in 3-5 business days
Product Style XS / Ultrabeast Red RevZilla Item #10541145 Store Sku MFR. Product #F01009400-110-105 AvailabilityAvailable: Ships in 3-5 business days

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
4 Customer Reviews
4 5/5
3 Questions & 0 Answers
Join now & get rewarded!

Get Free 2-Day Shipping and $15 + 5% RPM Cash on this order.

Already enrolled in RPM? Link your existing membership here.
Join Now Learn More

Related Video

How To Size and Buy a Motorcycle Helmet

How To Size and Buy a Motorcycle Helmet

Reviews & Questions

$39.99/yr.
Spend Less. Ride More.
  • 5% RPM Cash Back*
  • 10% Off Over 70 Brands
  • $15 in RPM Cash When You Join
  • Free 2-Day Shipping & Free Returns*
  • And more!
Become a member today! Learn More
By purchasing and enrolling in Riders Preferred Membership, you agree to the Program Terms and Conditions. *Some exclusions apply: 10% RPM discount applies on full price and sale price Exclusive Brands. 10% RPM discount applies on additional select brands at full price. Exclusions apply. RPM free 2-day shipping applies on qualifying items, contiguous U.S. only. Not available for AK, HI, or U.S. Territories. View shipping policies. RPM free returns apply on qualifying items and are processed on standard return timeline, contiguous U.S. only. View return policy.