GSB Models
GSB G-339 flip-up helmets combine a hinged chin section with a clear outer visor, internal sun visor and practical ratchet fastening. Moto Central's current collection contains plain gloss white, gloss fluo yellow and matt black finishes.
The G-339 is an older ECE 22.05 model. Check the exact helmet label, live size availability and whether its approval and specification suit your intended use before ordering.
GSB G-339 construction and features
Flip-up format
The chin section lifts to make brief stops and face access easier. Do not assume that a raised chin bar is approved for riding unless the approval label and instructions explicitly permit it.
Visors and ventilation
The listed specification includes a clear outer visor, internal sun visor, top vents and a chin vent. Keep all moving parts clean and confirm that vents and visors operate correctly.
Interior and fastening
A removable, washable liner supports routine care, while the quick-release ratchet buckle should sit securely beneath the jaw without pressing on the throat.
Older approval
The G-339 is listed to ECE 22.05 rather than the newer ECE 22.06 standard. Compare that point when considering a current flip-up helmet.
GSB G-339 fit guidance
Measure around the widest part of your head and use the product size guide as a starting point. A correctly fitted helmet should feel evenly snug, remain stable when moved by the chin bar and show no concentrated pressure that becomes painful.
Check the complete mechanism: before every ride, confirm that the chin section locks fully, the visor is secure and the ratchet strap is correctly adjusted. A convenient flip-up design still depends on correct closure and fit.
Why buy a GSB G-339 from Moto Central?
Moto Central keeps the available finishes together and provides practical fit support in our Leicestershire showroom. You can compare the G-339 with other flip-up motorcycle helmets, while our helmet sizing guide explains the checks to make before riding.
GSB G-339 questions
What standard is the G-339 approved to?
The current listings state ECE 22.05. Check the label on the exact helmet before use.
Does it have a sun visor?
Yes. The listed specification includes a retractable internal sun visor as well as the clear outer visor.
Can I ride with the chin section raised?
Only if the helmet's approval label and instructions explicitly allow that configuration. A lifting chin bar alone does not confirm approval for open riding.
Which finishes are listed?
Moto Central currently lists gloss white, gloss fluo yellow and matt black versions, subject to live size availability.
