SMK
SMK Gullwing V2 Sonic MA231 Flip-Up Helmet Matt Black / Grey / Red
The SMK Gullwing V2 Sonic MA231 flip-up motorcycle helmet in Matt Black / Grey / Red is designed for touring and everyday commuting. Its lift-up chin bar and dual P/J homologation allow the helmet to be used in its certified full-face or open-face configuration, giving riders practical flexibility on the road.
Why choose the SMK Gullwing?
- ECE 22.06 approved: Current European motorcycle-helmet certification.
- Dual P/J homologation: Certified for use with the chin bar closed or raised, subject to the rider following the helmet instructions.
- EIRT thermoplastic shell: Energy Impact Resistant Thermoplastic construction, produced in two shell sizes to improve proportional fit.
- Touring ventilation: Air inlets at the chin and top of the shell help manage airflow while riding.
- Pinlock-ready clear visor: Scratch-resistant clear outer visor prepared for a Pinlock 70 insert.
- Internal sun visor: Retractable secondary visor provides convenient glare management.
- Wind Stop system: Designed to reduce unwanted airflow around the lower helmet opening.
Model and colour
- Brand: SMK
- Model: Gullwing V2 Sonic MA231
- Helmet type: Flip-up modular motorcycle helmet
- Colour: Matt Black / Grey / Red
- Approval: ECE 22.06, P/J dual homologation
- Shell: EIRT thermoplastic, two shell sizes
SMK helmet size guide
Measure around the widest part of your head, keeping the tape level just above the eyebrows and ears. Compare the result with SMK's current guide. The helmet should feel evenly snug without concentrated pressure points. If you are between sizes or uncertain about the fit, contact Moto Central or visit the showroom for fitting help.
| Helmet size | Head circumference |
|---|---|
| XS | 54 cm |
| S | 55 cm |
| M | 57 cm |
| L | 59 cm |
| XL | 61 cm |
| XXL | 62 cm |
Sizes offered for this colourway: XS to XXL.
Supplied with this helmet
- SMK Gullwing V2 Sonic MA231 helmet in Matt Black / Grey / Red
- Clear Pinlock 70-ready outer visor
- Built-in retractable sun visor
- Additional black outer visor supplied with this UK product
Please note: A Pinlock insert is not included and is available separately. Use the additional black visor only where its light transmission is legal and appropriate for the riding conditions.
Questions and answers
Can the Gullwing be ridden with the chin bar raised?
Yes. Its P/J homologation covers the certified open-face and full-face configurations. Always secure and use the chin bar as directed in the helmet instructions.
Is a Pinlock insert included?
No. The clear visor is Pinlock 70-ready, but the insert is sold separately.
Does this helmet include a dark visor?
Yes. The current UK package includes an additional black outer visor as well as the clear visor and built-in sun visor.