Product Details
Product Description
Part Numbers
Sizing & Fit
O'Neal Sierra II Helmet
O'Neal Sierra II Helmet, featuring polycarbonate/ABS construction, is designed for more aggressive adventure riding and varying terrain. The Sierra II Helmet includes an integrated face shield and a shorter peak visor for more diverse functionality.
Features:
- Shell is constructed from ABS
- Moisture wicking, removable/washable air channeled comfort liner
- Vent holes for optimal ventilation
- Integrated face shield
- Height adjustable helmet shield
- Padded chin strap with double-d safety lock
- Meets DOT and ECE 22.05 safety standards
- Designed for Street, Enduro, Side by Side and Adventure riding
Product Style | RevZilla Item # | MFR. Product # | Availability |
---|---|---|---|
Product Style Flat Black / XS | RevZilla Item #1223674 | MFR. Product #0817-501 | AvailabilityIn Stock: Ships next business day |
Product Style Flat Black / SM | RevZilla Item #1223675 | MFR. Product #0817-502 | AvailabilityAvailable: Ships in 3-5 business days |
Product Style Flat Black / MD | RevZilla Item #1223676 | MFR. Product #0817-503 | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Flat Black / LG | RevZilla Item #1223677 | MFR. Product #0817-504 | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Flat Black / XL | RevZilla Item #1223678 | MFR. Product #0817-505 | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Flat Black / 2XL | RevZilla Item #1223679 | MFR. Product #0817-506 | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Flat White / XS | RevZilla Item #1223680 | MFR. Product #0817-511 | AvailabilityOnly 1 Left: Ships next business day |
Product Style Flat White / SM | RevZilla Item #1223681 | MFR. Product #0817-512 | AvailabilityAvailable: Ships in 3-5 business days |
Product Style Flat White / MD | RevZilla Item #1223682 | MFR. Product #0817-513 | AvailabilityOnly 2 Left: Ships next business day |
Product Style Flat White / LG | RevZilla Item #1223683 | MFR. Product #0817-514 | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Flat White / XL | RevZilla Item #1223684 | MFR. Product #0817-515 | AvailabilityOut of Stock: Enter your email address below to be notified when this item is available. |
Product Style Flat White / 2XL | RevZilla Item #1223685 | MFR. Product #0817-516 | AvailabilityOnly 2 Left: Ships next business day |
O'Neal Helmet Sizing
Helmet Size | Head Measurement (cm) |
---|---|
XS | 53-54 |
SM | 55-56 |
MD | 57-58 |
LG | 59-60 |
XL | 61-62 |
2XL | 63-64 |
3XL | 65-66 |
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
21 Customer Reviews
4.5/5
16 Questions & 23 Answers
Reviews & Questions
21 Customer Reviews
16 Questions & 23 Answers