The Best Mountain Bike Helmet Under 100 Dollars

Getting a good quality helmet should be the utmost important bit of protective equipment is your helmet. When you are out on your bike there is always the risk of crashing and hit your head.

As the dangers of head injury are apparent, it’s vitally important to wear a quality helmet on every ride. So make sure what you have on your head is going to protect it.

I am reviewing helmets from amazon as everyone has access to amazon but do not advise you to purchase a helmet from amazon as you can not try it on. This is a good price point and there are lots of helmets available around the $100 mark.

In this post, we will go through some of the best mountain bike helmets under 100 dollars, and you can go biking with confidence. Let’s get started!

Read more on common questions asked

Best Mountain Bike Helmet Under 100

These are our top picks below for the best mountain bike helmet under 100 dollars. You can scroll down for more in-depth reviews of these helmets.

Demon Podium Full Face Mountain Bike Helmet (Black, S)
Smith Optics Forefront Adult MTB Cycling Helmet - Matte Black/Small
Giro Fixture MIPS Adult Mountain Cycling Helmet
Troy Lee Designs Adult | Trail | All Mountain | Mountain Bike A2 MIPS Decoy Helmet (SM, Black)
Giro Register MIPS Adult Recreational Cycling Helmet
Giro Isode MIPS Adult Road Cycling Helmet
DEMON UNITED Podium Bike Helmet
Smith Optics Forefront Cycling Helmet
Giro Fixture MIPS Cycling Helmet
Troy Lee Mountain Bike Helmet
Giro Register MIPS Cycling Helmet
Giro Isode MIPS Cycling Helmet
2 lb. 2oz
1.95 lb
0.85 lb
0.85 lb
0.75 lb
0.64 lb
Polycarbonate
Aerocore
Polycarbonate shell with EPS liner
Aerospace filament-reinforced polycarbonate
In-Mold polycarbonate shell
In-Mold polycarbonate shell
Demon Podium Full Face Mountain Bike Helmet (Black, S)
DEMON UNITED Podium Bike Helmet
2 lb. 2oz
Polycarbonate
Smith Optics Forefront Adult MTB Cycling Helmet - Matte Black/Small
Smith Optics Forefront Cycling Helmet
1.95 lb
Aerocore
Giro Fixture MIPS Adult Mountain Cycling Helmet
Giro Fixture MIPS Cycling Helmet
0.85 lb
Polycarbonate shell with EPS liner
Troy Lee Designs Adult | Trail | All Mountain | Mountain Bike A2 MIPS Decoy Helmet (SM, Black)
Troy Lee Mountain Bike Helmet
0.85 lb
Aerospace filament-reinforced polycarbonate
Giro Register MIPS Adult Recreational Cycling Helmet
Giro Register MIPS Cycling Helmet
0.75 lb
In-Mold polycarbonate shell
Giro Isode MIPS Adult Road Cycling Helmet
Giro Isode MIPS Cycling Helmet
0.64 lb
In-Mold polycarbonate shell

DEMON UNITED Podium Full Face Mountain Bike Helmet


  • Outer Material: Polycarbonate
  • Weight: 2 lb. 2oz
  • Certified: CPSC Certified

The Demon United Full Face Helmet comes with the MIPS Brain Protection System and also provides a comfortable fit. EPS foam liner conforms to your shape for superior fit.

Removable, washable helmet liner. CPSC Certified and feels like it offers great protection and the price is very reasonable.

Features

  • EPS foam liner conforms to your shape for superior fit. Removable, washable helmet liner.
  • 2lbs. 2oz.
  • 13 convenient airflow vents.
  • CPSC Certified.
  • Includes helmet bag.

Smith Optics Forefront All Mountain Bike Helmet


  • Outer Material: Aerocore construction featuring Koroyd
  • Weight: 1.95 lb

Ideal for all-mountain riding or racing, the Forefront’s Aerocore construction featuring Koroyd creates a low-volume helmet with ventilated protection that fully integrates with your sunglasses, goggles, light, or POV camera.

One big selling point for the helmet is the fact that sunglasses are easy to take on/off/adjust due to the way Smith designed the bottom strap.

The strap extends from the bottom of the helmet “frame” and does not interfere with or touch your sunglasses frame.

Features

  • Lightweight Aerocore In-Mold Construction.
  • Ventilated Protection Featuring Patented Koroyd Material.
  • Integrated Skeletal Structure.
  • X-Static with Reactive Cooling Performance Lining.
  • Ultra-Light Single Layer Webbing.
  • AirEvac Ventilation.

Giro Fixture MIPS Cycling Helmet


  • Outer Material: Polycarbonate shell with EPS liner
  • Weight: 0.85 lb

Giro adult dirt cycling helmet is made from a polycarbonate shell with EPS liner. As well as 18 wind tunnel vents with internal channeling. It is designed for added protection and a straight out-of-the-box fit.

Features

  • 18 Wind Tunnel vents with internal channeling.
  • Utilizes the Multi-Directional Impact Protection System to redirect energy in a crash.
  • In-mold construction.

Troy Lee Mountain Bike Helmet


  • Outer Material: Aerospace filament-reinforced polycarbonate
  • Weight: 0.85 lb

This helmet comes with a MIPS brain protection system as well as increased frontal EPP and EPS increase protection in common impact zones that provide protection against high and low-speed impacts. Washable X-Static liner reduces odor and increases moisture-wicking while creating an optimized fit.

Features

  • Shell Material: aerospace filament-reinforced polycarbonate.
  • Impact Foam: EPP and EPS co-molded.
  • Ventilation: large vents.
  • Fit Adjustment: rear stabilizer fit system.
  • Visor: yes.

Giro Register MIPS Cycling Helmet


  • Outer Material: Lightweight Iin-Mold Construction
  • Weight: 0.75 lb
  • Certified: CPSC Certified

This Giro mountain helmet integrating MIPS (Multi-directional Impact Protection System) technology into its design creates a sliding layer between the outer shell and the head that allows the helmet’s outer shell to slide relative to the head so rotational forces are decreased.

The MIPS Utilizes the Multi-Directional Impact Protection System to redirect energy in a crash with 22 vents to help cool things down.

Features

  • Lightweight In-mold construction.
  • Multi-Directional Impact Protection System (MIPS) helps reduce the rotational forces caused by angled impacts.
  • 22 optimized vents that helps keep you cool and comfortable.

Giro Isode MIPS Cycling Helmet


  • Outer Material: In-Mold polycarbonate shell
  • Weight: 64 lb

This Giro mountain helmet is a comfortable helmet integrating MIPS (Multi-directional Impact Protection System) technology into its design to redirect energy in a crash. The helmet comes with 24 vents to help cool things down.

Features

  • Lightweight In-mold construction.
  • Multi-Directional Impact Protection System (MIPS) helps reduce the rotational forces caused by angled impacts.
  • 24 optimized vents that helps keep you cool and comfortable.

Wrapping

Finally, whatever your style of biking that you are planning on doing. The simple fact is that accidents will happen and it’s vital that you protect yourself, especially from a head injury. Get a good, comfortable, and affordable mountain bike helmet is of utmost importance to you. And don’t cheap it on the helmet

And that’s it for now! I’d love it if this post on the best mountain bike helmet under 100 dollars was helpful to you. Let me know if you have any questions and let me know if there is more to add.

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Best Mountain Bike Helmet