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Mach III Carbon Helmet
Mach III Carbon Helmet
Mach III Carbon Helmet
Mach III Carbon Helmet
Mach III Carbon Helmet
Mach III Carbon Helmet
Mach III Carbon Helmet
Mach III Carbon Helmet
Mach III Carbon Helmet
SKU: F01018500-110-001

Mach III Carbon Helmet

$399.95 USD
Color
Size
Size Guide
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Easy Returns

We have a very easy 30-day Return Policy! Please visit the Support tab to find our self service returns portal.

3 Year Warranty

We stand behind our products – the 509 industry leading warranty covers every product we make in a variety of ways.

Key Features

Lightweight

Lightweight

Lightweight, carbon fiber construction with our lightest style offered at 1300g

Shuttered Venting

Shuttered Venting

Adjustable shuttered venting at key areas of helmet shell

Shield Lock

Shield Lock

Shield lock and eye port gasket for air-tight seal eliminating wind noise

Aerodynamic

Aerodynamic

Aerodynamic design with durable ABS construction

Fidlock® Magnetic Chin Strap

Fidlock® Magnetic Chin Strap

Comes standard with Fidlock® easy-open magnetic strap clasp

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Mach III Helmet Tech Talk

More 509 University

Sullivan Helmet

Classic Design

Highly Rated

DOT certified shell

Hand Lay-Up Fiberglass Composite

Starting Weight: Grams

D-ring closure

Adjustable multi-channel ventilation system

Multiple Shield Options

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Mach III Carbon Helmet

Lightweight carbon fiber

DOT & ECE 22.06 certified shell

Hand Lay-Up Fiberglass Composite

Starting Weight: 1,750 Grams

Fidlock® Magnetic Chinstrap

Multiple Shield Tint Options

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Mach IV MOD Helmet

Full-face modular helmet functionality

Adjustable chin bar venting

Interior drop-down sunshade

DOT certified shell

Hand Lay-Up Fiberglass Composite

Starting Weight: 1,680Grams

Fidlock® Magnetic Chinstrap

Multiple Shield Tint Options

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Mach V Carbon Helmet

4% Lighter than Injected Molded construction

DOT & ECE 22.06 certified shell

Hand Lay Up Carbon Fiber

Starting Weight: 1,680 Grams

Venturi Venting System

Fidlock® magnetic chinstrap

Multiple Shield Tint Options

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Mach V Carbon Commander Helmet

Fully Integrated Cardo Communication System with JBL Speakers and Microphone

12 Volt Battery Built In

4% Lighter than Injected Molded Construction

DOT & ECE 22.06 certified shell

Hand Lay Up Carbon Fiber 3K Composite

Starting Weight: 1,670 Grams

Venturi Venting System

Fidlock® Magnetic Chinstrap

Multiple Shield Tint Options

Chase Light

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Overall rating: 4.5185184 / 5 from 27 reviews.

AI Generated Review Summary

The Mach III Carbon Helmet is praised for its sleek design, comfortable fit, and user-friendly magnetic strap. Customers appreciate its stylish appearance, ease of use, and secure fit, making it suitable for various riding conditions.

Summary topics

  • Appearance: 20%
  • Strap Ease of Use: 16%
  • Comfort and Fit: 24%

Review topics: ["fit","strap","looks","issues","color","design","feel","helmet","finish","style","vents","light","visor","carbon","wind","tape","case"].

Review highlights

  • "The magnetic strap is awesome and changing visors takes about 30 seconds." — Isaac T.
  • "Fits well Order a size larger than what your used to Very little wind noise Very light well constructed" — Shane M.
  • "The carbon fiber has a great look and design, it’s lightweight." — Casey S.

Reviews

Worth considering

"Ventilation could be improved and not terrible overall. Coming from an expired Arai Corsair, the value of the Mach III is matches my today's budget and reduced annual riding mileage."

— M O. (4/5)

Light and amazing

"Another cool looking wuper light helmet. I love how open this helmet is. Makes your ride more fun and enjoyable and keeps you safe. The super light carbon makes you want to wear it all the time. Highly recommended 👌"

— Bikerlens (5/5)

cheeky

"the check pads were to thick and was smushing my cheeks together and they didnt have thinner ones for the large helmet. loved everything else about it. i have a commander helmet and it fits fine."

— gregory k. (3/5)

Great helmet

"Fits well Order a size larger than what your used to Very little wind noise Very light well constructed"

— Shane M. (5/5)

Love the helmet!

"Love the helmet, looks great and super light! At low speeds there not much wind noise but it definitely gets loud at highway speeds. Seems to been too slim for me to install an aftermarket coms system into though I haven't tried anything name brand so that may be a me problem. Looks great out of the box but it looks absolutely killer with the smoked visor! There aren't many 509 street helmets where I live so this draws a whole lot of attention. 10/10 would recommend to a friend"

— Nicholas N. (5/5)

Light

"The Mach III carbon is a lightweight and comfortable helmet. I made this my go to helmet for most rides. Let's not forget how cool it looks, definitely stands out in crowds."

— Les D. (5/5)

Great Helmet

"This is a great basic helmet. Comfortable and minimal wind noise. One thing I noticed is the grooves around the helmet make installing a cardo a middle difficult but still manageable. Great helmet for the price!"

— Luvern (4/5)

Great helmet

"Super light"

— Johnny T. (5/5)

Awesome customer service, love the

"Awesome customer service, love the new helmet, thanks!"

— Heath F. (5/5)

Wind Noise

"I come from a background of Arai's Shoei's and AGV Helmets. I was very skeptical upon placing this order but bit the bullet and went for it due to the looks only! I may be Vain... The helmet is incredibly light, which scares me because "how can this be ECE rated or DOT at this weight". The fit and finish is really good ( I am a size small) and the chin strap is an easy on and easy off type of thing so I'm loving that. Although, I don't know how this would hold up in a crash god forbid I ever have to review on that! The helmet is gorgeous, and I can see a whole lot more than my RF 1400 or Pista and RFSR or even my new X-Fifteen. I horde gear. it cuts through the wind and has no vibrations, and I am loving it. Water beads off when you turn your head to one side compared to my other helmets and that is amazing as I don't have to wipe my visor with gloves and dirty it even more. I love the feeling of not really wearing anything but feeling safe due to its lightness. My 2 gripes would be no pin lock visor for fogging and no chin guard or cover. This helmet is loud. I use earplug protection so that helps a lot but for small commutes where I don't want to hit the plugs it gets annoying and is really loud. I tried a balaclava and some earphones and that does help but a chin cover is really necessary. Now, if you are doing speeds of less than 55 miles an hour this should be okay, anything above that on the highway is detrimental to your hearing without protection. Apart from that, Looks amazing , feels great, loud AF."

— Xavier M. (4/5)

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