GDM Duke DK-346 full face helmet is DOT FMVSS-218 certified. Its shell is constructed using an advanced lightweight composite poly-alloy. It features 6 points of ventilation with removable and washable liner and cheek pads. It also includes a double D-ring chin strap. Please refer to the following size guide to determine your correct size. To choose your correct helmet size, please measure the circumference of your head 1" above your eyebrows around your head and refer to the GDM Duke Helmets size guide below. Please note that the size guide is for reference only and cannot guarantee a perfect fit.
M**Z
These helmets are awesome! I've been using GDM for all my helmets
These helmets are awesome! I've been using GDM for all my helmets. My last one the GDM Duke -140 saved my life 2 weeks ago. I went 50MPH into a telephone pole face first. Because of the Duke I walked away with only a concussion and a dislocated shoulder. Great product and a great team that gets these out to me. Couldn't be more happier !!
C**N
Don't waste your money on this
The helmet sucks, I've had mine for a few weeks and then little red button on the strap fell off, when I tried changing the face shield...the locks broke off (I've changed a million of these, never seen anything like that) no breathe deflector, it whistles, I don't think the vents are functional, and I used a tape and measured my head correctly but it was still tight. Very tight. The only redeeming Factor is the helmet doesn't give lift off at high speeds and it looks cool. I got to go down today to replace it and this is the only after having it a few weeks
R**3
Great customer service
This helmet is a fantastic quality. The original one I ordered was slightly small and customer service worked with me to get me into the correct size. I'll be a return customer for sure!
A**W
Five Stars
Great product lightweight, feels a little cheaper but for the price can't complain, works with my glasses to
J**Y
Five Stars
Takes forever to receive but awesome look
T**Y
Four Stars
great helmet. only wish the GDM sold visors that were Pinlock compatible.
R**O
Tamaños diferentes
El tamaño es muy grande. Y no ventila internamente del casco.Las medidas 59-60cm realmente son mas pequeñas
R**E
Five Stars
Great helmet
Trustpilot
2 days ago
3 weeks ago
