The best mountain bike helmets ridden and rated

Find the best mountain bike helmets. Plus our pick of the favourites. A mountain bike lid is mandatory but it can also be stylish and comfy.

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What is a mountain bike helmet?

A mountain bike helmet has more head coverage than a road helmet. MTB helmets also have peaks to keep sun (or rain) out of your eyes. They are much lighter and more ventilated than a motorbike helmet.

best mountain bike helmets

The best mountain bike helmets in 2020

These lids our are what we think are the best mountain bike helmets available currently. Full review links below.

  • Bell Super 3, £119.99
  • Endura MT500, £149.99
  • Giro Montaro, £149.99
  • Bell 4Forty MIPS, £89.99
  • Endura Singletrack II, £74.99
  • 7iDP M2, £59.99
  • Lazer Roller MIPS, £79.99
  • Abus Montrailer Ace MIPS, £149.99
  • Giro Chronicle MIPS, £99.99

The best mountain bike helmets 2020: best value

best mountain bike helmets

7iDP M2 helmet

Price: £59.99
Rating: 8/10

Not one for the shy folks who like subtle colourways. Even the straps on this helmet are vibrant affairs. Yet, it’s not garish mess. It’s a cool looking lid that belies its modest price tag. Comfort levels are high thanks to abundance of padding and a large retention band. There are plenty of vents worked into the design too,m which is a bonus. Some riders may find it feels slightly perched on top and requires tightening up relatively high. Having said that, it still remains super comfy for those riders anyway.

Read the full review of the 7iDP M2 helmet

best mountain bike helmets

Lazer Roller MIPS helmet

Price: £79.99
Rating: 8/10

The Roller is a lower priced version of the Lazer Revolution helmet, And yes, it really does have proper MIPS lining within it for increased injury prevention during snagging impacts. This slip-liner basically reduces your brain being violently jarred in crashes. The overall fit and feel of the helmet is excellent that reminds us of the original Troy Lee Designs A1 classic lid. As usual with Lazer helmets, it is light and impressively well vented. High quality strapping and super comfy retention system round off a great helmet.

Read the full review of the Lazer Roller MIPS helmet

The best mountain bike helmets 2020: trail riders

best mountain bike helmets

Bell Super 3 helmet

Price: £119.99
Rating: 10/10

The Bell Super 3 is the best trail helmet because it strikes the right balance between durability and venting. It’s weighty and the lower edge where the EPS is left exposed is starting to look tatty but its cracking value for money and the chin bar compatibility lifts it to a whole different level.

Read the full review of the Bell Super 3 helmet

best mountain bike helmets

Endura MT500 helmet

Price: £149.99
Rating: 9/10

The MT500 is packed to the gills with features, including an adjustable peak, anti-bacterial padding, eyewear dock as well as a clip-off accessory mount for a headlight or helmet-cam. The peak lifts far enough up to store goggles and the straps are held securely under the peak edges and a large (removable) clip at the back.

Read the full review of the Endura MT500 helmet

best mountain bike helmets

Giro Montaro helmet

Price: £149.99
Rating: 9/10

The Giro Montaro is sleek, super comfortable, full adjustable and has a ton of trail-friendly features – it doesn’t get a full 10/10 rating however due to the pads design and durability and the price.

Read the full review of the Giro Montaro helmet

best mountain bike helmets

Bell 4Forty MIPS helmet

Price: £89.99
Rating: 9/10

Following the agreeable modern trend of premium spec helmets coming it at well under £100, the 4Forty has MIPS protection, a fully wrapped outer, a modern shape and a very tastefully done two-tone colourway. Unlike most brands, Bell integrate MIPS into their retention system which results in less interior bulk. The padding is arranged in such a clever, overlapping way that will delight those sweaty-foreheaded folks out there. It’s only the fact that it runs slightly hotter than megabucks helmets that give the game away.

Read the full review of the Bell 4Forty MIPS helmet

best mountain bike helmets

Endura Singletrack II helmet

Price: £74.99
Rating: 9/10

Although it still feels novel to see Endura on a helmet (they’ve not been making helmets for very long) it has become instantly assuring.This lid reduces the price by omitting the extra protection of the drinking-straw-like Koroyd filling of its higher-end helmets. Whether this directly reduces weight and improves ventilation is difficult to say, but there’s no debating the fact that the Singletrack II in an impressively light and brilliantly cool-running helmet. And one that still offers good back-of-head protection depth. The retention strap may not wrap all the way around the head but it does the job just fine. An excellent warm weather lid.

Read the full review of the Endura Singletrack II helmet here

The best mountain bike helmets 2020: enduro racers

best mountain bike helmets

Abus Montrailer Ace MIPS helmet

Price: £149.99
Rating: 8/10

This is the top helmet offering from Abus, which kind of makes the price tag look a bit more respectable seeing as other brands best lids cost more than this. Abus are known for making excellent locks mainly. If you’ve seen their helmets before, chacnes are you’ve seen a commuter helmet. But you really should check out their proper MTB helmets these days. This helmet has MIPS protection, a reinforced internal skeleton framework. The performance is excellent and the protection on offer is similarly good. Sure, some people might not dig its aesthetics but plenty of others will.

Read the full review of the Abus Montrailer Ace MIPS helmet

best mountain bike helmets

Giro Chronicle MIPS helmet

Price: £99.99
Rating: 8/10

When Giro killed off the classic Feature and ‘replaced’ it with the much more expensive Montaro, plenty of people were a bit miffed. Behold the Giro Chronicle! it’s essentially the new Giro Feature but with added contemporary must-haves. One increasingly must-have is MIPS anti brain-jarring slip liner. The exposed polystyrene at the base of the lid belies the price point but the Chronicle is just as comfy and reassuring as any Giro enduro lid of yore. Can feel warm in summer but hey, for UK riding this is a fine helmet.

Read the full review of the Giro Chronicle MIPS helmet

oakley drt5

Oakley DRT5 helmet

Price: £159
Rating: 10/10

At 440g the Drt5 is on the heavy side, but comparable with favourites like the Bell Super 3, and its secure hold on your head means it’s not really noticeable when riding. It’s also slightly more money than top end lids like the Giro Montaro or Endura MT500. But it’s a step up in quality from both of those, the finish is brilliant, and the extra features that could be so gimmicky are actually astute and desirable.

Read the full review of the Oakley DRT5 helmet

giro tyrant

Giro Tyrant helmet

Price: £134.99
Rating: 10/10

This quirky looking lid is being worn by 50:01’s very own Ratboy in the marketing shots. So does that mean it’s irrelevant for the rest of us? Riders who prefer to ride loop on a Sunday instead of finding twenty different ways to slide along a log? Not in our opinion.

Read the full review of the Giro Tyrant helmet

The best mountain bike helmets 2020: light full-face

Leatt DBX 4.0 V19.1 helmet

Price: £169.99
Rating: 9/10

Leatt’s latest offering uses a combination of in-moulded EPS and EPO foam to provide the bulk of the crash protection, with the lower density EPO foam designed to drop the weight of the helmet and provide protection from multiple impacts.

Read the full review of the Leatt DBX 4.0 V19.1 helmet

Troy Lee Stage helmet

Price: £275
Rating: 9/10

With good looks, excellent ventilation and more protection than an open face helmet, I have no hesitation recommending the Troy Lee Stage if you’re in the market for an enduro/trail full face. Of course you have to consider the Troy Lee tax, particularly when compared to the heavily discounted Fox Proframe, and the fact that the unwrapped bottom edge of the Stage is more vulnerable to everyday knocks.

Read the full review of the Troy Lee Stage helmet

Fox Proframe helmet

Prie: £225.00
Rating: 10/10

It’s slightly heavier than a MET Parachute on the scales, but you’d have to be incredibly sensitive to notice the weight difference while riding. We certainly didn’t. Lining the chin guard is a padded rubber material, that doesn’t actually touch your skin, and two detachable cheek pads. These come in different sizes to help tune the fit, as the Proframe doesn’t get an adjustable retention device.

Read the full review of the Fox Proframe helmet

The best mountain bike helmets 2020: convertible

best mountain bike helmets

Bell Super DH MIPS helmet review

Price: £249.99
Rating: 10/10

This helmet is inspired by the success of Bell’s Super 2R convertible helmet but takes things to the next level in terms of protection and fit. It has put on weight compared to the Super 2R but for the riders this helmet is aimed at, it’s a good move as it gets higher rating of DH safety in lab tests and feels sturdier too. By far the best ting about this helmet though is the airflow and ventilation. It’s a very un-claustrophobic full facer to wear. The fiddly converting mechanism means it isn’t one for multiple mid-ride conversions but if you’re choosing your helmet guise for the day and sticking to it, this is a great helmet.

Read the full review of the Bell Super DH MIPS helmet review

best mountain bike helmets

Giro Switchblade helmet

Price: £249.99
Rating: 10/10

The Giro Switchblade is an old concept that has returned. The Switchblade was a relatively infamous convertible helmet from the late 90s that looked… well, distinctive. The modern Switchblade is aesthetically entirely different to the one from last century. It’s sort of Giro Montaro enduro helmet that been put on steroids to grow into a full facer. The fit factor is high and along with it the comfort levels are similarly impressive. Struggles in comparison to the newer Bell Super DH MIPS but can also be found in the sales a bit more frequently which evens things up.

Read the full review of the Giro Switchblade

The best mountain bike helmets 2020: verdict

The best mountain bike helmets for trail riding: the Bell Super 3, Endura MT500 and Giro Montaro.

The best mountain bike helmets for enduro racing: the Abus Montrailer Ace MIPS and the Giro Chronicle MIPS.

The best mountain bike helmets convertible full-face: the Bell Super DH MIPS and the Giro Switchblade.

The best mountain bike helmets for value: the 7iDP M2 and the Lazer Roller MIPS.

When designing a trail/enduro open face helmet, there are a lot of boxes you need to tick – goggle storage, strap management, MIPS protection, etc – and most companies get there but the helmets that didn’t score well.

With the Mavic helmet the best thing about it is also the worst. The Live Fit memory foam brow pad is a double edge sword – it’s super comfortable but after a few months stinks to high heaven and we’ve yet to find a way to keep it clean.

All of which leaves the top three helmets on test – the Bell, Endura and Giro. The Endura MT500 does tick all those trial/enduro boxes and fits like proverbial glove but it just doesn’t look that sleek. How a helmet looks shouldn’t matter but it does and the MT500 is definitely function over form.

On the flip side the Giro Montaro does look like a £150 helmet, it’s stylish, the colour is on point and it’s just sleek. The sizing is spot on too and it’s easily one of the most comfortable helmet on test. It takes runner up spot simply because the pads fell apart and the Bell is better value.

The reason the Bell Super 3 takes top honours is not because it does anything better than any other helmet – it’s not the cheapest, the lightest or the best vented. It’s not as snug fitting as the Giro or the Troy Lee and there are helmets here with more features. It just does everything as well as the top-end helmets do but it costs £30 less. It also has a feature none of the others have. You can fit a chin bar to this helmet so you can race an enduro, use it on an uplift day or just feel safe when you’re out sessioning jumps. You may not ever see the need for this feature but the Bell Super 3 is like two helmets in one and that’s why it our test winner.

Helmet Price Weight Sizes Rating
7iDP M2 £59.99 336g S, M, L 8/10
Lazer Roller MIPS £79.99 219g S, M, L 8/10
Bell Super 3 £119.99 426g S, M,L 10/10
Endura MT500 £149.99 348g S-M, M-L, L-XL 9/10
Giro Montaro £149.99 391g S, M, L, XL 9/10
Bell 4Forty MIPS £89.99 370g S, M, L, XL 9/10
Endura Singletrack II £74.99 284g S/M, M/L, L/XL 9/10
Abus Montrailer Ace MIPS £149.99 445g S/M, L/XL 8/10
Giro Chronicle MIPS £99.99 364g S, M, L 8/10
Bell Super DH MIPS £249.99 891g S, M, L 10/10
Giro Switchblade £249.99 985g S, M, L 10/10

A mountain bike helmet is a must

Mountain biking is very unpredictable, which makes it exciting, but now and again things can go wrong and you will end up eating dirt. To this end we recommend wearing a helmet all times because landing on your head is incredibly dangerous – it can lead to a fractured skull, concussion or much worse.

best mountain bike helmets

Any bicycle helmet will work off-road but if you’re a trail rider you’ll want to consider something that is a little bit more robust that. Typically a trail helmet extends down at the back and over the temples and also features a stronger structure with the addition of MIPS liner to help dissipate impact forces. The extra protection does mean a trail helmet may run a little hotter, but most include good quality padding to soak up sweat.

Standard trail features include an adjustable retention device, in-moulded and bottom wrapped micro shell and a matching visor, which should be fully adjustable, so you can tilt it up and down to shade your eyes in bright sunshine. Some of the best trail helmets also get add-ons, like integrated adapters to mount a head cam, magnetic closures, goggle strap clips, storage bags and one here even has a sensor that detects if you’ve had a accident.

best mountain bike helmets

Due to the trickle-down effect you will see some high-end features included on budget helmets but we’ve focused on the top-tier simply because that’s where there’s the greatest choice. These helmets are more refined, harder wearing and look pretty sick too.

Key features of the best mountain bike helmets

best mountain bike helmets

Protection standards

All bike helmets sold in the UK need certification. This means helmets must meet certain fixed test criteria like impact velocities, roll-off tests, and strap system strengths. This is a minimum and many modern helmets surpass these requirements by incorporating composite materials into sub frames or “roll cages” for extra protection.

Crash replacement schemes

If your helmet is involved in an accident, most manufacturers offer a reduced price crash replacement scheme. With proof of original purchase, these programmes can save you up to 50% on an expensive replacement lid.

Micro shell

To reduce damage to the EPS it’s covered with a thin plastic micro-shell. This is usually in-moulded with the EPS during the manufacturing process and can be a single or several pieces.


EPS (expanded polystyrene) foam and is at the core of the helmet. It’s lightweight, easily mouldable and works exactly like a crumple zone in a car.


Multi-directional Impact Protection System is a moveable plastic inner liner. This slides when your head hits the ground reducing the force of them impact and likelihood of a concussion or brain injury.

best mountain bike helmets


Padding thickness and density has a significant effect on sweat absorption, cooling and comfort. Thicker internal padding may run a little hotter but you’re less likely to get sweat running down your neck and the helmet will generally feel more comfortable. Channels are often formed into padding to improve air flow and speed up drying.

best mountain bike helmets

Retention device

Like on a baseball cap, a retention device allows you to adjust the fit of the helmet. Most use a rotating dial, which allows you to vary the tension with one hand while riding. On some you can also adjust the overall height of the device and starting diameter.

best mountain bike helmets


EPS can dent easily, so to increase durability it’s protected by a thin micro-shell. This is made from plastic, making it lightweight, easy to mould and available in a wide range of colours.


To keep you cool, vents at the front and back of the helmet allow air to flow across your scalp. The size and number of vents is key but it’s also important the peak integrates with the vents properly.

best mountain bike helmets


Adjustability is the name of the game – the best visors cab be tilted up and down so they’re out of your eye line when riding. Ratchet or thumb screws are handy to stop the visor rattling or falling down.

best mountain bike helmets

Goggle parking/strap gutter

On some helmets the visor can be tilted up so you can ‘park’ goggles underneath when you’re not using them. Usually this feature comes hand in hand with a strap gutter – a shallow channel on the back of the helmet that holds the strap in place.

best mountain bike helmets

Bottom wrapping

To add extra protection to a high wear area on the lower edge the micro-shell often wraps under the bottom of the helmet.

How to find your helmet size

Get hold of a fabric or paper tape measure if possible. If you don’t have one, don’t try and wrap a metal tape measure around your noggin, it doesn’t work – believe us. In the absence of a fabric/paper tape measure, find some string and wrap that around your head and note its length.

Whereabouts to measure around your head? Essentially around the widest (biggest circumference) part of your head. Around your forehead and around the most prominent bit of the back of your head. Note down the measurement in centimetres. All helmets have size ranges and with your head measured it’s then easy enough to find which sizing has your head size covered.

How often should you replace a helmet?

You should replace a helmet after any slightly significant impact or crash. A lot of helmet companies offer crash replacement schemes so it’s worth checking out their websites for info about such things.

In terms of general lifespan, it’s typically advised that you should think about replacing your helmet every two to three years. Some companies in the past have stated a longer term than this but we’d feel a bit iffy using a helmet that’s had more than three years proper trail riding use. General wear and tear as well as things like UV degradation can have negative affects on the performance and reliability of your helmet.