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GDM DEMON Full Face Motorcycle Helmet

GDM DEMON Full Face Motorcycle Helmet

Regular price $169.95 USD
Regular price $189.95 USD Sale price $169.95 USD
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Shipping calculated at checkout.

You save $20 (11% off)

  • DOT FMVSS-218 certified
  • 2 shields included
  • 5-point ventilation
  • Removable, washable liner
Shield Color: Tinted & Clear
Size
Color: Matte Black
Quantity

GDM Demon Full-Face Helmet Features

  • DOT FMVSS-218 Approved motorcycle helmet
  • GDM DEMON Matte Black Full Face Motorcycle Helmet
  • Aerodynamic shell design constructed using an advanced lightweight composite poly-alloy
  • Liner and cheek pads made with a hypo-allergenic and antimicrobial nylon, all of which are removable and washable
  • Flush-fit, side-coverless face shield that is optically correct, compound-curved, scratch resistant and protects against UV-rays
  • 5 points of ventilation with chin, rear & forehead vents
  • Double D-Ring chin strap with holder
  • Clearcoat finish which protects the helmet’s paint
  • Designed in the USA, Made in Vietnam
  • Comes with a carrying bag and ships with 2 Shields (visors)

Size & Fit Guide

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.

Details & Description

GDM DEMON Matte Black Full Face Motorcycle Helmet — DOT FMVSS‑218 Approved

The GDM DEMON Full Face Motorcycle Helmet is engineered for riders who want maximum protection, aggressive styling, and dependable performance on every ride. As a DOT FMVSS‑218 approved full face motorcycle helmet, the DEMON delivers complete head coverage and impact protection for street, highway, and daily commuting.

Premium Full Face Protection

With its full‑coverage design, the DEMON provides 100% head protection, shielding riders from impacts, debris, and harsh weather conditions. This makes it one of the most reliable full face motorcycle helmets for riders who prioritize safety without sacrificing comfort or style.

Advanced Lightweight Poly‑Alloy Shell

The aerodynamic shell is constructed using an advanced lightweight composite poly‑alloy, designed to reduce wind drag while maintaining exceptional durability. This material helps the DEMON remain lightweight, comfortable, and stable at high speeds — a key advantage for riders searching for a lightweight full face motorcycle helmet.

Comfortable, Hygienic Interior

Inside, the helmet features a hypo‑allergenic and antimicrobial nylon liner, along with removable and washable cheek pads. This interior keeps riders cool, clean, and comfortable, making the DEMON ideal for long rides and warm‑weather conditions.

Optically Correct Flush‑Fit Face Shield

The DEMON includes a flush‑fit, side‑coverless face shield that is:

  • Optically correct and distortion‑free
  • Compound‑curved for improved aerodynamics
  • Scratch‑resistant
  • UV‑protected

This ensures clear visibility and eye protection — essential features riders look for in a high‑quality full face motorcycle helmet.

5‑Point Ventilation System

With chin, rear, and forehead vents, the DEMON’s 5‑point ventilation system provides steady airflow throughout the helmet. This helps reduce fogging, regulate temperature, and maintain comfort during long rides.

Secure Double D‑Ring Strap

The Double D‑Ring chin strap offers a secure, race‑ready fit trusted by riders worldwide. It keeps the helmet firmly in place, enhancing safety and stability.

Durable Clearcoat Finish

A protective clearcoat finish shields the helmet’s matte black paint from scratches, UV rays, and everyday wear — keeping your helmet looking sharp ride after ride.

Designed in the USA — Made with Precision

The GDM DEMON is designed in the USA and manufactured in Vietnam with strict quality standards. Riders get a premium full face motorcycle helmet built for real‑world performance and long‑term durability.

Includes Extra Shield + Carrying Bag

Every DEMON helmet ships with:

  • 2 shields (visors)
  • GDM carrying/storage bag

This gives riders flexibility for different lighting conditions and a convenient way to store or transport their helmet.

Safety & Certifications

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.

Care & Warranty

Helmet Care
Keep your GDM helmet in top condition:

  • Clean with mild soap and a soft cloth
  • Avoid harsh chemicals or solvents
  • Air‑dry only — no direct heat
  • Store in a cool, dry place away from sunlight
  • Replace after any impact, even if no damage is visible

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.

Shipping & Returns

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.

What’s Included

Every GDM helmet comes with:

  • Helmet (model‑specific shell and features)
  • Clear visor installed
  • Protective helmet bag
  • Owner’s manual / care instructions

Some models may include additional accessories depending on design and configuration.

Frequently asked questions

Some questions and answers are automatically generated.

How is the fit and sizing?
Most reviewers report that the helmet fits snug and well. Several mention initial surprise at the tight fit that improves once you push your head in fully. A few with larger heads note it can be tight, and one reviewer added aftermarket padding for a better custom fit. Sizing may vary by individual head shape.
What comes in the box?
The helmet ships with a carrying bag and two additional visors—one tinted and one in the color you selected. This is confirmed across multiple reviews praising the extras included.
Is it DOT approved for safety?
Yes, the helmet is DOT FMVSS-218 certified, indicating it meets U.S. federal safety standards for motorcycle helmets. One reviewer's account of their boyfriend's serious crash at 70+ mph, where the helmet protected his head, aligns with this certification.
Does the helmet fit all head shapes equally?
Fit experiences vary notably by head shape and size. While most find it fits well, a few mention it wiggles slightly for skinny faces, and one reviewer with a larger head found it quite snug. Individual fit-testing is recommended, as this is not a one-size-fits-all experience.
View full details

Customers praised the stylish design and comfortable fit. Reviews noted "100 percent saved me" during an accident, highlighting safety. Included visors are a bonus. However, concerns about wind noise at high speeds, padding quality, and loose visor mechanism were mentioned. Some felt build quality was lightweight. Great value for budget-conscious riders.

  • 100 percent saved me will be buying another when I get a new bike
  • for the price this was a great buy. super stoked on how it looks, comfortable
  • Great fit, ventilation is amazing!! Definitely a great purchase.
  • 5 stars: 17 (65%)
  • 4 stars: 5 (19%)
  • 3 stars: 3 (12%)
  • 2 stars: 1 (4%)
  • 1 star: 0 (0%)
A
Anonymous

Helmet was great, I loved it and it fits real nice

T
Theodore

100 percent saved me will be buying another when I get a new bike

T
Tamar kvantaliani
Recommend

The best thing ever!!!

K
Kayla
Saved my boyfriend when he rolled his bike❤️

My boyfriend was going over 70mph and hit a curb after splitting and rolled. He caught air twice and slid about 10ft after the second come down. He injured his shoulder and ankle while also has a concussion but it could have been extremely worse. Thankful for this helmet more than I can explain.

D
DOA
Fantastic Helmet worth every penny then some!!

Great fit, ventilation is amazing!! Definitely a great purchase. Thanks GDM!!!

R
Ryan
Good looking

everything came as described, but my smoke visor had bubbles on it, not a big deal

S
SSxTURTLExSS
Absolutely beautiful

I love it, and everyone on the road loves it thank you guys!

G
Gabriel Campbell

Fits amazingly and looks amazing would buy again

A
Anonymous

AMEN

G
Guillermo Vargas
Buena compra

Me quedó genial

A
Andrew Edwards
Good

Looks cool

S
Sut
You pay for what you get

Helmet comes in box with 2 addition visors. (tinted and the color you picked) Helmet looks badass, think it's supposed to be a knock off avg pista rr. The padding is pretty bad and build quailty feels cheap. My biggest complaint is the wind noise. If you're upright it's pretty loud but doable. When you full tuck and wind gets into the top vents, it's literally, like LITERALLY deafening. I'd say you're paying for looks and wouldn't be bad for low speed city commutes lol 🤷🏾

E
Excelente producto! Exactamente lo que describen! Le quedó perfecto a mi 05 Nissan 350Z
Recomendado

Es un buen casco, no es la gran cosa porque por el precio no puedes exigir mucho, funciona perfecto, único detalle que cuando vas muy rápido puedes escuchar como se filtra el aire a través del visor ( no es súper sellado ) pero por el precio está súper bien

F
Felipe Schmidt
Great price and snugged fit

Love using this and at first I thought I got the wrong size until I actually push my head through inside.

b
beau klum
great helmet

for the price this was a great buy. super stoked on how it looks, comfortable, cancels noise beautifully. solid package here. i get a lot of compliments on it too, bought the iridium chrome visor to go with it and i couldn’t be happier with this helmet.

A
Ana fernandez
10/10

Very good quality .

D
Denilson C.
Buenísimo llego antes de lo previsto

Muy buena calidad !!contento con este producto, el servicio al cliente muy atento

J
Joseph Reyes
👎🏼

I have a shoie and bought this just to have something extra (just in case). I’d prefer quality, it’s amazing how much a good helmet can change the ride. Don’t cheap out on helmets it looks cool though! Fast shipping and came with a lot of stuff

G
Gina
Visor

Helmet is awsome I would recommend but if I may add, the helmet lacks a visor locking mechanism that would definitely make the helmet not only safer but more comfortable knowing it’s clamped down when it feels it could just fly up at speed ect.Aside from that this helmet is amazing, out of 10 I’d rate it a solid 7 or 8/10

O
Oscar Marmo
Love it

Great first helmet. Looks cool. Scratches easy, visors are cool. Nice design. Catches wind when you turn your head. I got a medium and it’s tight, but I have a big head.

C
Colton m.
Biggest issue is the loose fit

Not bad as far as quality but kinda flimsy. Would be much better with thicker padding,the did send additional padding but got used to it being a little on the loose side.

J
Jacob Gioia
Not too shabby

Looks and fits great but there’s this annoying whistle noise due to slight spacing in the helmet I’m guessing. Makes me want to throw it off mid right. But overall not bad

R
Ricardo Noel Rodriguez
Nice helmet

Straps slightly ripped when I first tried on, other than that pretty solid could use a extra vent to keep from fogging

K
Kenneth Clifford
picture is not acurate

the helmet is well built and fits well the shown gold visor is not the one that comes with the product it is more shiny / iridescent orange gold colored.

J
Jeyson morales
Buen casco

Ecxelente casco recomendado!

a
angelo d riley
Great helmet for budget. Do not keep long

Cosmetically amazing helmet, when I picked it up the first time I was sketched… the helmet is super light compared to most…. I didn’t feel totally safe with it in… I have a skinny face and it wiggled a little left and right. I literally just ordered a small patch of memory foam and added it to open spaces and it fits perfect. I recommend saving and dropping extra dollars on a safer more known helmet but this is definitely a steal if you need a good looking helmet on a budget.

J
Jett007

If I purchased the incorrect Size for the helmet, am I able to return it for the correct size ?

GDM

Yes. Returns/Exchanges are accepted within 30 days of delivery.

K
Kenny b

Does the GDM DEMON FULL FACE MOTORCYCLE HELMET have the slots for speakers in I install Bluetooth in it like is it Bluetooth ready

GDM

Yes. It is Bluetooth ready. It does have pockets/ cutouts inside for speakers.

J
Jason

Is this helmet able to have a Sena attached