O'Neal Adventure Helmet
O'Neal ON26H0819-12
O’Neal Sierra RS Echo Adventure Helmet - Black/Grey
R2,630.00
PRODUCT INFO
The O'Neal SIERRA RS ECHO is a high-performance dual-sport helmet designed for both on-road and off-road use. Combining safety, comfort, and advanced features, it’s ideal for riders who demand versatility in all weather and terrain conditions. With its sporty fit, modern design, and Bluetooth readiness, it’s built for adventure.
Key Features:
- Developed with 2 outer shells and 3 EPS layers for enhanced protection and a precise fit
- Lightweight, durable ABS shell construction
- Sporty close-fitting design reduces movement at high speed for better control
- Microlock chin strap closure for a secure and easy fastening
- ECE 22.06 certified for the latest safety standards
- Optimised ventilation system with closable vents and internal channels
- Integrated sun visor and clear main visor for all-weather vision
- Pinlock® MaxVision insert included (not pre-installed) for fog-free visibility
- Bluetooth-ready with speaker cavities and rear cable loop (unit not included)
- Quin Smart Sensor ready (sensor not included)
- E.Q.R.S. (Emergency Quick Release System) for safe cheek pad removal
- Removable, washable comfort liner with sweat-absorbing materials
- Extra-wide field of view for greater awareness on and off-road
Specifications:
- Weight: 1650g (±50g)
- Standard: ECE 22.06
- Closure: Microlock
- Shell: ABS
The O'Neal SIERRA RS ECHO offers excellent comfort, protection, and functionality – making it a great choice for dual-sport and adventure riders.
Sizing
To determine which helmet size fits you best, measure the widest circumference of your head using a flexible measuring tape or piece of string; approximately 2cm above your eyebrows and ears as illustrated below. If your head measurement falls between two sizes, it is generally recommended to select the smaller of the two.

For maximum safety and comfort, take note of the following points when fitting the helmet (and securely fastening the chin strap):
- Helmet may take some effort to slide over your head, but should not be overly difficult
- Should fit snuggly around the crown of your head without creating uncomfortable pressure points
- The top padding presses on the top of your head
- The cheek pads press against your cheeks, so that your teeth touch the inside of your cheeks when opening / closing your mouth
- There should be no space to slide two fingers between the helmet and your temple
- Hold the helmet on either side and without moving your head, try to move the helmet up and down, and side to side. It should not be easy to move and you should feel the skin of your head and face being pulled
- Your eyes should be located in the center of the helmet's viewpoint
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