O'NEAL DEFENDER SOLID helmet, gray/black
In-store pickup
From 31.07.2026 (Friday)
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By courier to your home
Delivery method on Monday 03.08.2026
At pick-up points
Delivery method on Monday 03.08.2026
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Extended return option up to 100 days More info
Product description
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O'NEAL DEFENDER SOLID helmet
The light, well-ventilated and stylish DEFENDER model is our complete package for all-mountain and enduro. Thanks to the double-inmold technology, it is durable for action on the trails.Product features
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Lightweight Inmold technology combines the inner EPS and outer shell, with an additional second layer protecting the outer edges and improving shock absorption
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Ventilation openings and internal ventilation channels ensure optimal air circulation
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Easily adjustable helmet visor with locking points
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O'Neal Fidlock® magnetic buckle (engineered in Germany) for easy, single-handed fastening and release, provides maximum security whilst riding
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Perfect fit thanks to height and width adjustment with adjustment wheel
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Meets EN1078 and CPSC safety standard for bicycle helmets
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Product details
| Sex | Unisex |
| Colour | grey/black |
| Helmet features | Removable/adjustable visor |
| product ID | 293505 |
Defender and Matrix
| Size | XS-M | L-XL |
|---|---|---|
| Head circumference (cm) | 54 - 58 | 58 - 61 |
Dirt Lid
| Size | M-L | L-XL |
|---|---|---|
| Head circumference (cm) | 55 - 59 | 58 - 61 |
Orbiter
| Size | XS-S | ML | XL-XXL |
|---|---|---|---|
| Head circumference (cm) | 53 - 56 | 57 - 60 | 61 - 64 |
Outcast
| Size | XS/S/M | L/XL |
|---|---|---|
| Head circumference (cm) | 52 - 58 | 58 - 62 |
Pike
| Size | S/M | L/XL |
|---|---|---|
| Head circumference (cm) | 55 - 58 | 58 - 61 |
Q RL
| Size | XS-M | L-XXL |
|---|---|---|
| Head circumference (cm) | 53 - 58 | 58 - 63 |
Thunderball
| Size | XXS-S | M-XL |
|---|---|---|
| Head circumference (cm) | 52 - 57 | 57 - 61 |
Trailfinder
| Size | S-M | L-XL |
|---|---|---|
| Head circumference (cm) | 54 - 58 | 59 - 63 |
Product rating (3 ratings)
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O'Neal's primary focus is on the production of gear and equipment for motocross and mountain biking enthusiasts. This includes protective gear such as helmets, goggles, gloves, body armor, as well as riding apparel and footwear designed for off-road riding. O'Neal targets riders of all ages and offers a wide range of products for both young and adult riders. This allows families and riders with different skill levels to find the appropriate gear. The brand has established itself globally through partnerships with cyclists.
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Why shop with us?
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1 500 000+ orders
We are the largest cycling e-shop in Slovakia, verified by 100,000+ customers.
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We are available via e-mail, online chat, phone or in person at our MTBIKER stores.
We actively support the cycling community in Slovakia
Thanks to your order we can support cycling development.
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MTBIKER centre and showroom
Visit our store with a pump-track and trail access or our showroom in a historical bulding in central Bratislava.
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Variant O'NEAL DEFENDER SOLID prilba, black/mint
Prilbu sme objednávali pre 10 ročného chlapca.. Je s ňou veľmi spokojný. Je ľahučká, dobre sa mu nosí. Spracovanie je na dosť dobrej úrovni.
Translate by GoogleShow the originalVariant O'NEAL DEFENDER SOLID prilba, sivá/čierna
Variant O'NEAL DEFENDER SOLID prilba, black/mint