DOT-certified motorcycle helmets, riding gear and Bluetooth headsets, designed in the USA for everyday riders and shipped from our own warehouse in Los Angeles, California.
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GDM
Bluetooth helmets
Every GDM Bluetooth helmet comes with a GDM headset in the box, so you can take calls, play music and hear GPS directions without stopping.
Helmet guide
Every GDM helmet is DOT certified to FMVSS 218, and most models come in sizes S to 2XL. The right style depends on how and where you ride:
Round out your kit with motorcycle jackets, motorcycle gloves, Bluetooth headsets and replacement visors and face shields. Not sure about your size? Check the helmet size chart.
About GDM
GDM is a U.S. company that designs protective gear for everyday riders. From our Los Angeles warehouse, we ship DOT-certified motorcycle helmets, armored jackets, gloves and other riding gear, plus Bluetooth headsets that keep you connected on the road.
Reviews
Featured rider story
A handwritten letter from a rider’s mom, Marie K., after her son’s crash.
GDM is a U.S. company. All orders ship from our warehouse in Los Angeles, and our support team is based in the U.S.
All orders ship from our Los Angeles warehouse. Delivery takes 1–6 business days depending on where you are: 1–3 on the West Coast, 4–6 on the East Coast. Domestic shipping is free on orders over $99. See our shipping policy for details.
Yes. Returns and exchanges within the U.S. are free. See our return policy for details.
Use our size chart to find your size. If you’re between sizes, contact us and we’ll help you choose.
Yes. All GDM helmets are DOT‑certified and legal for street use across the United States.
Bubble shield, flip-up shield, sun visor or goggles? How to choose eye protection for an open face or vintage helmet, how 3-snap mounts work, and which color to use when.
Bubble shield, flip-up shield, sun visor or goggles? How to choose eye protection for an open face or vintage helmet, how 3-snap mounts work, and which color to use when.
How to choose a sport bike helmet: why full face, checking the view in a tuck, aerodynamics and stability, a snug fit, vents, shields, Bluetooth and the gear that goes...
How to choose a sport bike helmet: why full face, checking the view in a tuck, aerodynamics and stability, a snug fit, vents, shields, Bluetooth and the gear that goes...
Helmet speakers too quiet or muffled? 7 fixes: where to put the speakers, closing the gap, cutting wind noise, volume settings, wiring and replacement speakers, plus how to protect your...
Helmet speakers too quiet or muffled? 7 fixes: where to put the speakers, closing the gap, cutting wind noise, volume settings, wiring and replacement speakers, plus how to protect your...
