Good quality, but they are a tight fit for a large helmet.
Love the helmet. Fits great and is an amazing deal for the price. Will be buying another just like it for my wife.
10% OFF YOUR ORDER! USE CODE "SAVE10"
FREE DOMESTIC SHIPPING ON ORDERS OVER $99
FREE & EASY DOMESTIC RETURNS & EXCHANGES
You save $20 (9% off)
Couldn't load pickup availability
Key Features
Choosing the right size ensures proper protection and comfort.
How to Measure:
Wrap a soft measuring tape around the largest part of your head — just above the eyebrows and ears. Match your measurement to our sizing chart.
Fit Notes:
A proper helmet should feel snug at first. Padding will naturally break in after a few rides. If the helmet moves easily when you shake your head, size down.
Head Shape:
GDM helmets are designed for intermediate‑oval head shapes for secure, comfortable fit.
The GDM BEAST Bluetooth Dual‑Sport Adventure Helmet is engineered for riders who want safety, versatility, and seamless connectivity on both pavement and trail. Built with a DOT FMVSS‑218 certified ABS/polycarbonate shell, this dual‑sport motorcycle helmet delivers dependable impact protection and lightweight performance for adventure, dirt, and street riding.
Designed for mixed‑terrain use, the BEAST features an integrated clear face shield, removable peak visor, and a drop‑down tinted sun visor for adaptable visibility in changing light conditions. The included GDM HyperSonic Bluetooth system keeps you connected for music, calls, and GPS without taking your focus off the ride.
A moisture‑wicking, removable, and washable comfort liner keeps you cool and fresh, while 5‑point ventilation channels airflow through the chin, forehead, and rear exhaust ports. The optically correct, scratch‑resistant shield provides wide, distortion‑free visibility and UV protection. A secure double D‑ring chin strap ensures a reliable fit for high‑speed and off‑road riding.
Perfect for motorcycle, dirt bike, MX, ATV, UTV, scooter, and adventure riders, the GDM BEAST delivers the protection, comfort, and capability serious riders expect from a premium dual‑sport helmet.
DOT Certified (FMVSS 218):
All GDM helmets meet or exceed DOT requirements for impact absorption, penetration resistance, and retention system strength.
Shell & Liner:
Durable outer shell paired with a multi‑density EPS liner engineered to manage impact energy.
Visibility:
Designed to meet federal peripheral vision requirements for safe street riding.
Helmet Care
Keep your GDM helmet in top condition:
1‑Year Limited Warranty
Most GDM helmets include a 1‑Year Limited Warranty covering manufacturing defects in materials, components, and workmanship.
Wear‑and‑tear, cosmetic damage, accidents, impacts, and misuse are not covered.
To start a claim, email our support team with your order number and photos of the issue. Claims are reviewed within 2–3 business days.
Fast Processing:
Orders ship from our Los Angeles warehouse, typically within 1 business day.
Delivery Estimates:
Standard U.S. shipping usually arrives in 3–5 business days depending on location.
Free Return Shipping (USA):
U.S. customers receive free return shipping on eligible returns. A prepaid label is provided once the return is approved.
Return Eligibility:
Items must be in new, unused condition with all original packaging.
International customers are responsible for return shipping costs.
For full details, see our Return & Refund Policy.
Every GDM helmet comes with:
Some models may include additional accessories depending on design and configuration.

Customers praised this dual-sport dirt bike helmet for excellent comfort, fit, and value. The Bluetooth system is "surprisingly loud" and works well. Multiple visors included (clear, smoke, tinted). Some concerns: occasional Bluetooth connectivity issues, visor fogging, aerodynamics at high speeds, and goggles compatibility. Sizing runs true, though some suggest sizing down.
Fits nice comfortable to wear. Got three lenses with mine. Easy swap out. Fogs easy need to apply some good anti fog spray I used magic worked good. Bluetooth works better than expected honestly. I have road most the day on same charge with gps and music playing non stop. Phone calls work great.
Great aggressive looking helmet, great fit and feel. Bluetooth installation was easy, and it fit right in with tons of room for the mic. Good ventilation and love the included smoke shield. Also bought the iridium shield which looks awesome. Overall would definitely recommend this helmet to anyone, it is pretty versatile for all sorts of offloading.
I have only used motocross helmets and recently picked up a dual sport. I wanted a helmet that looked sharp for on and off the highway. I was going to get the bell Mx-9 that looks similar but I love the way this one looks better. It looks futuristic Halo type. Fits great, cancels out the wind way better than I'm used to, and it looks great. For the price, you can't beat it. 100% but it again.
Package arrived earlier than delivery date. Very Comfortable, good visibility and quieter than I expected. I have installed the dark shield that came with the package and plan to buy a mirrored one as well. For the price this was an awesome deal.
The color I got isn't true to the picture and goggles don't fit well on
Helmet is great but the Bluetooth device does not work and tried every way to troubleshoot. But other that that great
Everything feels great. Helmet looks awesome. Fits really well. Surprisingly small headphone are really loud. I synced intercom to my Pan America HD and it works great! I also have Cardo on my other helmet and GDM is louder. I am hearing impaired and louder is better. I recommend! The price is great.
Thank you seller!
So I was a bit hesitant to purchase a helmet online and from a company I never heard of. But this helmet fits and feels great! The Bluetooth headset sounds good and is loud enough to hear while riding. The helmet seems well built. Would definitely recommend this helmet.
came with 3 visors not to bad looking either wish they had more choices other then black but for the money worth the deal haven't tried the Bluetooth yet
I have 2 of these helmets, the comms are easy to link and work good when onthe atv trails with friends. The helmet is comfortable and has good ventilation. The visors are great and not cheaply made. Helmet size fits true
Nice product for the price. It’s a really nice helmet and can hear through headset perfectly. I like how helmet has an indented space for Thea speakers to mount internally. I also like the visor that can be flipped up.
I like this helmet and the Bluetooth sound is good, how ever it does come with the color lens of your choice, then it came with a clear and smoke, but wish the fold down hidden lens came in clear for night riding
Perfect just what description said
Good value for money
Comfortable
I love it. I mainly ride in the dirt and was expecting some sort of dirt to get passed the helmet. But it’s been working great!
Fits per measures given for sizes and feels soft, works as designed and for my scooter.
Lite weight and Comfortable
Feels and fits good.
For the price this is my favorite helmet, I've owned it for over a year and even have went down wearing it. It looks really good and the dark visor it comes with is a good shade for daytime riding. My favorite helmet.
Visor doesn’t click shut like it should, allows air flow into the helmet when not wanted which results in a lot of wind noise.
It’s fits perfect a little tight on cheeks for medium but the padding will fit your face
Tal cual la foto , me parece muy bien los cristales claros y los oscuros ( no son tan oscuros) me parecen perfectos incluso en la nocheTalla correctaNo le doy la 5 Estrella porque aún no lo uso
Chin strap padding could be sewn more into the strap & the buckle is rough & could be buffed out more. Otherwise, good value & looks great.
I've been looking for a helmet for my Dual Sport bike for a while. I was very happy to stumble across this. I installed the dark visor with no issues and it only takes a minute or two to switch between them if need be. All the padding on the inside of the helmet easily unbuttons and comes out which was great for installing a communication headset into the helmet. I've had the helmet for about a month now and had zero issues with it. Very happy with this product.
Good helmet for the most part, my bike has short swept pipes, the helmet drowns the noise a good bit and still am able to hear vehicles on my side, haven't installed the tinted visor yet.. the clear one is decent., Little fog on cold rides.. however.. not the most aerodynamic helmet.. @70-90 wind drafts will catch it.. just got home from an hr. Ride home from work tonight.. I feel I should have bought a medium instead of large when it came to this helmet.. top of the head fits well, kind of loose on the cheeks and chin being that I am an average guy of 6'2 170lbs.. go with a medium on this if youre not fat faced..
Love this thing fits like a glove and the lens was easy to change out would recommend to anyone looking to get a beginner helmet !!
The best part is that it 'fits my head'. My last helmet was a motocross helmet and that really didn't fit my head well. It would go on and stay on, but there were pressure points and 'loose areas'.The visor will fog (going to look into anti-fogging stuff) but you can lift it and the circulating air does a pretty good job of keeping it clear (even in very high humidity).It looks good, is comfortable and functions well. I'd buy this one again.
Good quality, but they are a tight fit for a large helmet.
light weight android finish
Love the helmet. Fits great and is an amazing deal for the price. Will be buying another just like it for my wife.
It exceeded my expectations, I really like to recommend 100%.
Love the helmet. Fits great and is an amazing deal for the price. Will be buying another just like it for my wife.
Fits nice comfortable to wear. Got three lenses with mine. Easy swap out. Fogs easy need to apply some good anti fog spray I used magic worked good. Bluetooth works better than expected honestly. I have road most the day on same charge with gps and music playing non stop. Phone calls work great.
I have only used motocross helmets and recently picked up a dual sport. I wanted a helmet that looked sharp for on and off the highway. I was going to get the bell Mx-9 that looks similar but I love the way this one looks better. It looks futuristic Halo type. Fits great, cancels out the wind way better than I'm used to, and it looks great. For the price, you can't beat it. 100% but it again.
Package arrived earlier than delivery date. Very Comfortable, good visibility and quieter than I expected. I have installed the dark shield that came with the package and plan to buy a mirrored one as well. For the price this was an awesome deal.