ONeal Sierra 2 Adventure Motocross Helmet in Torment Black White - ONeal Motocross Enduro Helmets
Think ahead. Protect your greatest asset – While none of us go riding thinking we are going to crash hard and smack the ole noggin, we all know it happens. Having the right helmet is critical. All ONEAL helmets are designed using the technologies allowing your head to stay cool with multiple vents and ultra plush liners. The latest in manufacturing techniques helps our helmets to surpass the World’s toughest safety standards.

The ONeal Sierra 2 Adventure Motocross MX Helmet is a fantastic helmet. A high-grade aerodynamic moulded ABS shell will keep you safe. A built in sun visor can be adjusted or removed easily, this allows you to the option to use goggles if you prefer. The inner lining is fast at wicking away sweat to keep you cool & dry. The adjustable ventilation on the mouthpiece, combined with a total of 17 vents to keep you comfortable while riding. Overall a great looking, safe and comfortable helmet. When it comes to protection and safety, trust the company that’s been producing protective equipment for over 40 years, trust ONeal.
ONeal Sierra 2 Adventure features:
- Aerodynamic and lightweight ABS shell construction
- Ultra-plush removable, sweat absorbing & washable padded inner liner keeps you cool and dry by wicking away sweat
- Multiple air vents for optimal ventilation and cooling
- Microlock closure from 2020 season
- Pinlock® 30 fog-resistant insert lens included (not mounted)
- Clear Visor plus secondary integrated sun visor included
- Adjustable visor design
- ECE 22-05 and ACU Gold approved helmet
- Click Here for Helmet Measurement Guide

ONeal Helmet Bag features:
- Helmet zipper bag
- Keep your helmet protected whilst you travel to and from your events in this internally padded helmet bag.
- Fit every model O'NEAL MX Helmet
- Additional Inside Pocket
ONeal Sierra 2 Helmet Key features:


- ACU Gold Stamped | ECE 22-05 Certified
- Weight: Only 1500 Grams (+/- 50gr)
- ACU Gold Approved - ONLY Available on Helmets Purchased in the UK