You're going to LOVE the fit. Try it on and experience our perfect fit. If you don't love it, send it back in new and unused condition within 30 days for an exchange or full refund*. Risk free.
Free US Shipping
We offer Free Shipping on all orders over $99 within the US. During select promotions & holidays we will offer Free Shipping on all orders within the US.
3 Year Warranty
We stand behind our products – with a 3 year warranty against materials and workmanship for all helmets.
100% Secure Checkout
At 509 we use the best SSL certificate and the most trusted payment processors provided by Shopify Payments.
Key Features
Glove-Friendly Easy Open
Comes standard with Fidlock® easy-open magnetic strap clasp
Ignite Powered
Ignite dual pane heated shield for fog-free & ice performance in sub-zero conditions
Sunshield Trigger
Sunshield is oversized for maximum field of view & flips up instantly with the push of a button
DOT/ECE Dual Certified
DOT/ECE dual certified helmet shell with weight starting at 1900 grams
Drag
Our innovative new 509 Delta R4 Ignite Helmet sets the new standard for modular flip-up face shield performance with Ignite dual pane heating technology for clear, ice- and fog-free vision in sub-zero conditions. The sunshield is oversized for maximum field of view and flips up instantly with the push of a glove-friendly button. Built for maximum warmth and convenience, the helmet’s long list of features includes climate control venting and the glove-friendly Fidlock® magnetic strap buckle.
Key Features
- Ignite dual pane heated shield for fog free performance
- DOT/ECE dual certified helmet shell
- Comes standard with Fidlock® easy-open magnetic strap clasp
- Comes standard with our new Pro Series Liner and Cheekpads
- Poly Alloy Shell construction for durable quality
- 2 shell sizes, and Dual Density EPS for optimal fit
- Climate Control Ventilation system with two stage front chin vent, adjustable forehead vents, and exhaust vents.
- Arctic Chin Curtain and 509 breath box comes standard, and are removable for fine tuning
- Smoke tinted sunshield drops down with Sunshield Trigger
- Quarter turn cable included
- ITO (Indium Tin Oxide) shield coating to prevent surface scratches and fogging
- WARNING for California residents
Specs
- Starting Weight: DOT/ECE 1900 grams
Size Guide
Not sure about your size? Try on at your local dealer!
*Street Helmets are a tighter fit due to cheekpad compression, however, they do pack out over time/use.
How to Measure
When measuring your head, use a cloth tape. Start it just above your eyebrows and circle it around the thickest point in the rear of your head and then reference the size guide below.
Scroll to the right to see more sizes
| Size | US Hat Size | Inches | Centimeters |
| X-Small | 6 5/8 - 6 3/4 | 20 7/8 - 21 1/8 | 53 - 54 |
| Small | 6 7/8 - 7 | 21 5/8 - 21 7/8 | 55 - 56 |
| Medium | 7 1/8 - 7 1/4 | 22 1/2 - 22 5/8 | 57 - 58 |
| Large | 7 3/8 - 7 1/2 | 23 1/4 - 23 1/2 | 59 - 60 |
| X-Large | 7 5/8 - 7 3/4 | 24 - 24 1/4 | 61 - 62 |
| 2X-Large | 8 | 24 3/4 - 25 | 63 - 64 |
| 3X-Large | 8 3/4 | 25 1/4 - 25 3/4 | 64 - 65 |
| 4X-Large | 9 | 26 - 26 1/4 | 66 - 67 |
| Youth Small | 6 | 18 1/8 - 18 7/8 | 47 - 48 |
| Youth Medium | 6 1/8 - 6 1/4 | 19 1/4 - 19 5/8 | 49 - 50 |
| Youth Large | 6 3/8 - 6 1/2 | 20 - 20 1/2 | 51 - 52 |
Pressure Points
When trying on a helmet, take note of any pressure points on your forehead—a sign that the helmet is too round. Pressure points on the sides of your head indicate a helmet is too oval for the shape of your head. After you buy a new helmet, try wearing it for 30 to 45 minutes to check for pressure points before using it on a ride.
Pressure Points
When trying on a helmet, take note of any pressure points on your forehead—a sign that the helmet is too round. Pressure points on the sides of your head indicate a helmet is too oval for the shape of your head. After you buy a new helmet, try wearing it for 30 to 45 minutes to check for pressure points before using it on a ride.
Get the R-200 Look
