Last Updated on April 11, 2026 by
best full face mountain bike helmet under 100 offers essential protection without breaking the bank. Choosing the right helmet ensures safety, comfort, and durability for your mountain biking adventures.
Whether you’re a beginner or an experienced rider in the USA, finding a helmet that meets safety standards and fits well is crucial. This guide highlights top affordable helmets that balance quality and price.
Below is a quick comparison table to help you decide, followed by detailed reviews of each helmet.
Quick Comparison: best full face mountain bike helmet under 100
| Product | Features | Best For | CTA |
|---|---|---|---|
| ILM Lightweight Full Face Helmet | Triple Safety Standards Lightweight Ventilation |
Challenging Trail Riding | Check Price |
| OutdoorMaster Grizzly Full Face Helmet | 27 Vents Cooling Removable Chin Pads |
Downhill Racing | Check Price |
| OutdoorMaster Grizzly Helmet (Alt) | EPP Impact System Goggle Strap Channel |
Full Face Protection | Check Price |
| Bikeroo Adult Cycling Helmet | Lightweight Design Stable Fit |
General MTB Riding | Check Price |
| Demon United Podium X MIPS Helmet | MIPS Safety Tech Advanced Ventilation |
Downhill & BMX Racing | Check Price |
Our Top 5 best full face mountain bike helmet under 100
We selected five models for different needs and budgets, prioritizing feature quality, performance, fit/compatibility, reliability, and value.
ILM Lightweight Full Face Helmet
Overview
This helmet suits riders seeking enhanced safety with triple certification standards. It features a durable ABS shell with EPS and EPP foam for face and chin protection.
Lightweight at about 700 grams, it offers excellent ventilation and a removable visor and liner. Compatible with goggles, it fits well for challenging trail riding in the USA.
Specs
→ ASTM-F1447, CPSC 16 CFR Part 1203, CE EN1078 certified
→ ABS shell with EPS and EPP foam cushioning
→ Approx. 700 grams / 1.52 pounds weight
→ Multiple air vents for airflow
→ Removable visor and washable liner
Pros
👍 Enhanced triple safety standards
👍 Strong ABS and foam protection
👍 Lightweight for neck comfort
👍 Good ventilation system
👍 Compatible with goggles
Cons
👎 Goggles not included
👎 No adjustable fit system mentioned
👎 Limited color options
Customer Experience
Customers find the helmet a great no-frills design that fits well and feels lightweight during rides. It offers solid protection without excess bulk.
Best For
Challenging trail riding and riders needing certified protection.
OutdoorMaster Grizzly Full Face Helmet
Overview
Designed for adult riders with head sizes 57-62cm, this helmet offers maximum protection with EPP collarbone impact and chinbar shock pads. It is ideal for downhill and BMX racing.
Lightweight at under 750 grams, it features 27 vents for excellent airflow and a removable, washable liner. The goggle-strap channel and pivoting visor add convenience.
Specs
→ Fits 57-62cm head circumference
→ EPP collarbone impact system
→ 27 high-flow ventilation vents
→ Removable washable comfort liner
→ Goggle-strap channel and pivoting visor
Pros
👍 Adjustable fit system
👍 Excellent ventilation
👍 Removable chin pads
👍 Lightweight design
👍 Goggle compatibility
Cons
👎 No detailed durability feedback
👎 No MIPS technology
👎 Limited color options
Customer Experience
Users report the helmet is true to size, very comfortable, and sturdy. It performs well in multiple spills, keeping riders safe with ultra-lightweight feel.
Best For
Downhill racing and riders needing removable chin protection.
OutdoorMaster Grizzly Helmet (Alt)
Overview
This version shares features with the previous OutdoorMaster model, including fit for 57-62cm heads and EPP impact protection. It emphasizes full face coverage and comfort.
Lightweight with 27 vents, it includes a removable liner and two D-ring sets for fit customization. Some users note mixed feedback on fit and durability.
Specs
→ Fits 57-62cm head circumference
→ EPP collarbone impact system
→ 27 ventilation vents
→ Removable washable liner
→ Two D-ring thickness options
Pros
👍 Well-built and lightweight
👍 Comfortable full face protection
👍 Good ventilation
👍 Value for money
👍 Goggle strap channel
Cons
👎 Mixed fit feedback
👎 Some durability concerns
👎 No MIPS technology
Customer Experience
Customers appreciate the helmet’s comfort and protection but report mixed fit and durability experiences. Appearance and value are generally praised.
Best For
Riders seeking lightweight full face protection with good ventilation.
Bikeroo Adult Cycling Helmet
Overview
This helmet is a stable, lightweight option for general mountain biking and road cycling. It offers a comfortable fit with no strap discomfort.
Though lacking detailed specs, it is praised for its perfect fit and cool appearance, making it a solid choice for everyday riders in the USA.
Specs
→ Lightweight design
→ Stable fit and straps
→ Suitable for MTB and road cycling
→ No detailed certifications listed
→ Simple, durable construction
Pros
👍 Perfect fit
👍 Lightweight feel
👍 Comfortable straps
👍 Stable on head
👍 Cool design
Cons
👎 No detailed safety certifications
👎 Limited feature information
👎 No ventilation details
Customer Experience
Users report a perfect fit and stable feel with no strap irritation. The helmet is lightweight and visually appealing for casual use.
Best For
General mountain biking and road cycling enthusiasts.
Demon United Podium X MIPS Helmet
Overview
This helmet features MIPS technology to reduce rotational injuries and 20+ vents for airflow. It weighs about 710 grams and is downhill rated for serious riders.
Customizable fit with removable padding and a removable visor makes it versatile for BMX, downhill, and MTB use in the USA.
Specs
→ MIPS safety system included
→ 20+ ventilation vents
→ Lightweight at 710 grams
→ Removable fit pads and visor
→ Downhill and BMX rated
Pros
👍 MIPS technology for safety
👍 Advanced ventilation system
👍 Lightweight construction
👍 Customizable fit options
👍 Suitable for multiple disciplines
Cons
👎 Tight fit for some users
👎 Mixed ease of replacement feedback
👎 Higher price near $100 limit
Customer Experience
Customers find the helmet comfortable with a snug fit and praise its protective features. Some note challenges with replacement parts.
Best For
Downhill and BMX riders needing advanced safety tech.
Buying Guide: best full face mountain bike helmet under 100
Safety Certifications and Standards
Look for helmets meeting ASTM, CPSC, or CE certifications to ensure reliable protection. These standards confirm the helmet has passed impact and durability tests.
Fit and Comfort
A proper fit is essential for safety and comfort. Choose helmets with adjustable straps, removable liners, or multiple padding options to customize the fit to your head size.
Weight and Ventilation
Lightweight helmets reduce neck strain during long rides. Ventilation with multiple vents helps keep you cool and comfortable on hot trails.
Additional Features
Consider helmets with removable visors, washable liners, and compatibility with goggles. These features enhance convenience and adaptability for different riding conditions.
Durability and Materials
Helmets with ABS shells and EPS or EPP foam offer strong impact resistance. Durable materials extend helmet life and maintain protection after minor impacts.
FAQs: best full face mountain bike helmet under 100
Are full face helmets under $100 safe?
Many helmets under $100 meet key safety certifications and provide adequate protection for most riders.
How do I know if a helmet fits correctly?
The helmet should fit snugly without pressure points and stay securely in place during movement.
Can I use these helmets with goggles?
Most full face helmets under $100 are designed to be compatible with goggles for eye protection.
What is MIPS technology?
MIPS is a safety feature that reduces rotational forces during impacts, enhancing brain protection.
How important is ventilation in a helmet?
Good ventilation helps regulate temperature and prevents overheating during intense rides.
Are removable liners necessary?
Removable liners make cleaning easier and improve hygiene, especially after sweaty rides.
Can these helmets be used for downhill racing?
Some helmets under $100 are rated for downhill use, but always check the specific product certifications.
Final Verdict: best full face mountain bike helmet under 100
For riders seeking certified protection and lightweight comfort, the ILM helmet is a top choice. Those needing advanced safety features like MIPS should consider the Demon United Podium X. OutdoorMaster models offer great ventilation and removable chin pads for downhill enthusiasts, while Bikeroo suits casual riders wanting a stable, lightweight helmet.
I am Jaxon Mike, the owner of the Rcfact website. Jaxon Mike is the father of only one child. My son Smith and me we are both RC lovers. In this blog, I will share tips on all things RC including our activities, and also share with you reviews of RC toys that I have used.