Types of Bike Helmets
Not every helmet is built for every ride. Matching the helmet to your terrain and speed is the single most important choice you will make. Not sure which suits you? Jump to our buying guide.
Half-Shell (Open Face)
The most popular MTB helmet. Extended rear and side coverage, a visor, and great ventilation for long climbs and everyday trail riding.
TrailAll-MountainXCFull-Face
Includes a fixed chin bar to protect your jaw and face. Essential for downhill, bike parks and high-speed descending where crashes are more severe.
DownhillBike ParkFreerideConvertible
A half-shell with a removable chin bar. Climb with it off, click it on for the descent. Ideal for enduro racing and big mountain days.
EnduroVersatileRoad / XC Race
Ultra-light with large vents and aerodynamic shapes. Built for speed and efficiency on smoother terrain and long-distance efforts.
RoadXC RacingCommuter / Street
Smooth, rounded shells often with reflective details, integrated lights or visors. Designed for city riding and visibility in traffic.
UrbanCommuteDirt Jump / BMX
Hard-shell "skate style" helmets with thicker, rounder coverage. Look for models certified for multi-sport use if you ride skateparks too.
Dirt JumpPump TrackTop Picks by Riding Style
Instead of one "best helmet for everyone," we break down what to look for in each category, with well-known models to start your research. Always check current specs and sizing before you buy.
Trail / All-Mountain Half-Shell
Best for: everyday trail riders who climb and descend
A modern trail helmet balances coverage, airflow and weight. Look for deep rear coverage, an adjustable visor that can park goggles, and a rotational impact system like MIPS.
Pros
- Great ventilation on climbs
- Versatile for most riders
- Goggle and glasses friendly
Cons
- No chin or face protection
- Not ideal for bike parks
Models worth comparing: Fox Speedframe Pro, Troy Lee Designs A3, Smith Forefront 2. Check prices on Amazon →
Enduro Convertible
Best for: enduro racing and big descents after long climbs
Convertible helmets give you half-shell comfort on the way up and full-face protection on the way down. Check that the chin bar is certified to the same standard as the shell, and practise attaching it before race day.
Pros
- Two helmets in one
- Breathable when climbing
Cons
- Heavier than a half-shell
- Chin bar must be carried
Models worth comparing: Bell Super Air R, Giro Switchblade. Check prices on Amazon →
Downhill Full-Face
Best for: bike parks, downhill and freeride
When speeds go up, so does the need for protection. A proper downhill helmet should carry ASTM F1952 certification, have a fixed chin bar, emergency-release cheek pads and good goggle integration.
Pros
- Full head and face coverage
- Tested for downhill impacts
Cons
- Hot on long climbs
- Heaviest category
Models worth comparing: Troy Lee Designs D4, Fox Rampage Pro Carbon. Check prices on Amazon →
Cross-Country Lightweight
Best for: XC racing, marathons and gravel
XC helmets prioritise low weight and maximum airflow. Many look close to road helmets but add a bit more rear coverage and sometimes a small visor.
Pros
- Very light and cool
- Comfortable on long rides
Cons
- Less coverage
- Not for technical descending
Commuter / Street
Best for: urban riders and daily commuters
Visibility matters as much as impact protection in traffic. Look for reflective elements, rear LED lights, and a magnetic buckle that is easy to use with gloves. Read more in our guide to helmet types.
Pros
- High visibility options
- Casual, durable styling
Cons
- Less ventilation
- Not designed for trails
Models worth comparing: Nutcase Street, Thousand Heritage. Check prices on Amazon →
Budget-Friendly All-Rounder
Best for: beginners and casual weekend riders
Every certified helmet sold legally must pass the same baseline impact tests, so you do not need to spend a fortune to be protected. Budget models usually save money on weight, ventilation and fit systems.
Pros
- Same core certification
- Easy to replace after a crash
Cons
- Heavier, fewer vents
- Basic fit adjustment
Mountain Bike Helmet Buying Guide
Use this checklist to narrow down your options. Once you have a shortlist, follow our fit guide to make sure your helmet actually protects you.
What to Look For
- Certification for your region (see safety standards)
- Rotational impact protection such as MIPS or a similar system
- Coverage that matches your riding style and speed
- Ventilation with internal channels for hot climbs
- Adjustable visor that can park goggles
- Fit system with a micro-adjust dial and height settings
- Weight that feels comfortable for hours on the bike
- Crash replacement program from the manufacturer
Quick Comparison
| Type | Protection | Airflow | Weight |
|---|---|---|---|
| XC / Road | ●●○○○ | ●●●●● | Lightest |
| Trail Half-Shell | ●●●○○ | ●●●●○ | Light |
| Convertible | ●●●●○ | ●●●○○ | Medium |
| Downhill Full-Face | ●●●●● | ●●○○○ | Heaviest |
| Commuter | ●●○○○ | ●●○○○ | Medium |
How to Fit a Bike Helmet Correctly
A poorly fitted helmet can shift during a crash and leave you exposed. These six steps take two minutes and make a real difference.
- Measure your head
Wrap a soft tape about 1 inch (2.5 cm) above your eyebrows and ears, at the widest point. Compare to the brand's size chart.
- Position it level
The front edge should sit one to two finger-widths above your eyebrows, not tilted back on your head.
- Tighten the dial
Turn the rear retention dial until the helmet is snug and does not rock, but causes no pressure points.
- Adjust side straps
Slide the strap dividers so the straps form a "V" just below each earlobe.
- Buckle the chin strap
Tighten until only one or two fingers fit between the strap and your chin.
- Do the shake test
Open your mouth wide; the helmet should pull down slightly. Shake your head; it should stay put.
Helmet Safety Standards Explained
Look for a certification sticker inside the helmet. Here are the most common standards you will see on bicycle helmets.
| Standard | Region | What It Covers |
|---|---|---|
| CPSC 16 CFR 1203 | United States | Mandatory federal standard for all bicycle helmets sold in the US. |
| EN 1078 | Europe / UK | European standard for helmets for cyclists, skateboarders and roller skaters. |
| AS/NZS 2063 | Australia & New Zealand | Required standard for bicycle helmets in Australia and New Zealand. |
| ASTM F1952 | International (voluntary) | Specification for downhill mountain bike racing helmets, including chin bar testing. |
| ASTM F2032 | International (voluntary) | Specification for BMX helmets. |
Mountain Biking Tips for Every Rider
The right helmet is the start. These habits will make every ride safer, faster and more fun.
Check Before You Ride
Squeeze both brakes, check tire pressure, make sure the quick-releases or thru-axles are tight, and give the bike a quick bounce to listen for rattles.
Look Where You Want to Go
Your bike follows your eyes. Look ahead past obstacles to the line you want, not at the rock you are trying to avoid.
Attack Position
On descents, stand with level pedals, knees and elbows bent, and hips back. Let the bike move underneath you.
Brake Before the Turn
Do most of your braking in a straight line before corners, then release and let the tires grip through the turn.
Respect the Trail
Yield to uphill riders and hikers, stay on marked trails, avoid riding when trails are muddy, and pack out everything you bring in.
Pack the Essentials
Carry water, a multi-tool, a pump, a spare tube or plug kit, a basic first-aid kit and your phone. Tell someone where you are riding.
Helmet Care & When to Replace It
Cleaning & Storage
- Remove pads and hand-wash with mild soap and water
- Wipe the shell and liner with a damp cloth
- Never use solvents, harsh cleaners or a dishwasher
- Air-dry away from radiators and direct sun
- Store in a cool, dry place — not a hot car trunk
Replace Your Helmet If…
- You crash and your head hits anything, even if it looks fine
- You see cracks, dents or crushed foam
- The straps, buckle or fit system are damaged
- It no longer fits snugly
- It has reached the manufacturer's recommended lifespan (often around 3–5 years)