Usually available in two configurations, convertible mountain bike helmets always strike a compromise. Throw three configurations into the mix and you would expect an even finer balancing act. However, Leatt’s three-in-one MTB Enduro 3.0 pretty much nails each of them. It’s comfortable, breezy, and easy to use, but even then, it’s not totally without flaw, as its visor can catch the wind, and in its full open-face guise, it’s a little on the weighty side.

 

Leatt MTB Enduro 3.0 helmet – Technical details

Claiming to be the most versatile helmet you can buy, the MTB Enduro 3.0 from Leatt offers three configurations: open face, ¾ over-ear, and full face. These can all be swapped out thanks to a hook and button system, where the sides hook into slots at the temples of the helmet, with two button-actuated clips that click in place into large black holes towards the lower rear. Releasing the attachment requires just a press of a button and a bit of a pull.

2025 leatt mtb 3.0 helmet 34.jpg
2025 leatt mtb 3.0 helmet 34 (Image Credit: Farrelly Atkinson)
2025 leatt mtb 3.0 helmet 34.jpg, by Liam Mercer

Even with the three options, the helmet is certified to ASTM F1952-10 for downhill use. That’s as well as AS/NZS 2063:2008, EN 1078, and CPSC 1203, so it’s primed for all types of riding from trail, e-MTB, bikepark, and downhill.

Bringing the protection is an in-molded impact foam wrapped with a polymershell and complete with Leatt’s own 360 Turbine system. There’s also an in-molded PowerBridge force absorber.

2025 leatt mtb 3.0 helmet interior.jpg
2025 leatt mtb 3.0 helmet interior (Image Credit: Farrelly Atkinson)
2025 leatt mtb 3.0 helmet interior.jpg, by Liam Mercer

20 vents promise good airflow, there’s a Fidlock magnetic closure, 20 vents, an adjustable breakaway visor, and a sunglasses dock at the rear vents. A micro-adjuster at the rear sorts fit adjustment both vertically and for the circumference of your head.

As for weights, in its open-face configuration it comes in at 458g, with the ear pieces it’s 588g, and in full-face mode it’s 721g. So, without any attachments, it is heavier than a standard open-face lid, it’s lighter than the Fox Dropframe Pro with the ear guards installed, and it’s lighter than similarly certified full-face helmets with the chin guard in place.

For easy transport, Leatt includes a drawstring bag.

Leatt MTB Enduro 3.0 helmet – Performance

When in open-face mode, the Enduro 3.0 helmet is far from a featherweight, which has become par for the course for a convertible lid. It’s certainly not uncomfortably heavy, far from it, but it can feel a little wobbly on the head. But the helmet’s at its very best when paired with either the over-ear attachments or the chin guard, where the extra face-hugging support stablises the helmet, effectively hiding the helmet’s weight.

2025 leatt mtb 3.0 helmet hole.jpg
2025 leatt mtb 3.0 helmet hole (Image Credit: Farrelly Atkinson)
2025 leatt mtb 3.0 helmet hole.jpg, by Liam Mercer

Adding the ear covers, or chin bar, is super simple. Simply slip the tabs on the attachment into the slots at the temples of the main helmet, then locate the large black buttons in their holes. This can be done with the helmet on your head, but it’s not something I’d recommend. It’s tricky, and far easier done with the helmet off, before you ride, or drop into a track. 

The MTB Enduro 3.0 boasts generous internal padding, and it comes with two thicknesses in the box to help dial in the fit further. Settling on the thinner option and padding is still generous. With that comes excellent comfort as there are no hard points around the head, and well, the helmet’s a great place to be. Add the over-ear covers or the chin guard, and the helmet doesn’t become uncomfortable at all. If anything, it gets even more so thanks to the added stability I mentioned earlier.

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_MG_2161 (Image Credit: Farrelly Atkinson)
_MG_2161.jpg, by Liam Mercer

When beginning my test of this helmet, I didn’t expect it to deliver the level of airflow that it does. It’s plentiful, and as it’s guided around the head thanks to internal channels, the Enduro 3.0 doesn’t overheat. That’s in all configurations, too, but in full-face mode, with the chin bar attached, I’ve been very impressed with how open and airy it feels. It’s by no means claustrophobic, and thanks to vents in the chin bar itself, air flows freely throughout. 

Although its weight can’t be felt when worn with no attachments, the downsides are incredibly few. However, there are a couple – the sunglasses dock isn’t perfect. It works best when paired with glasses with straight arms. Those with arms that bend around the ear don’t hold as securely, and don’t slide into place all the way. But it is good to see some kind of eyewear storage solution, and with goggles, there’s plenty of space for them to sit under the visor.

2025 leatt mtb 3.0 helmet reaar.jpg
2025 leatt mtb 3.0 helmet reaar (Image Credit: Farrelly Atkinson)
2025 leatt mtb 3.0 helmet reaar.jpg, by Liam Mercer

Secondly, the rather large visor catches the wind at higher speeds. This then causes the helmet to pull on the head. It’s still secure, without a doubt, it’s just a very mild strain under certain scenarios. 

Leatt MTB Enduro 3.0 helmet – Verdict

£250 is quite the investment on a helmet, for sure, but you are getting three in one here, and thankfully, it works very well in each configuration. Compare that with the price of a good open-face helmet and a good full-face, and you’re easily saving money.

Despite there not being any other helmets that offer the three-in-one function, there are other convertible hats that are worth looking at, such as MET’s Parachute MCR. It’s a heavier helmet, but it’s breezy, and although its Fidlock chinbar mounts are fiddly to use, the chin bar can be installed as the helmet is worn. This is a £300 helmet

The Bell Super DH Spherical is more expensive again at £315. It’s downhill certified, but the real selling point is that it uses Mips Spherical, which is made up of two foam cups that slide separately from each other under impact, to put it as simply as possible. Bell’s Super Air Spherical is cheaper at £225, but it is not DH certified.

By bringing three configurations to the game, the Leatt MTB Enduro 3.0 helmet is one of the more ambitious convertible helmets on the market. However, it manages to excel and perform regardless of how you set it up. Airflow is good, comfort is great, and the attachment mounting system is fairly straightforward. It does fall foul to the classic convertible helmet problems, being heavier than a regular open face helmet and additionally, the sunglasses dock isn’t perfect, nor is the visor but as a hat that’s designed to fulfill three purposes, it does and excellent job – why buy three helmets when you can buy one?

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Test report Leatt Enduro 3.0 MTB convertible helmet review £250.00

Helmets

Product purpose: 

Leatt says, “The most versatile helmet you can buy! The Enduro 3.0 helmet offers three different levels of protection. Wear the half shell for those light trail days or attached the over ear coverage for slightly more aggressive trails. For total protection clip in the chin bar for full-face protection when you need it! ” and the brand certainly isn’t wrong here.

Build extra: 

PowerBridge in-molded force absorber
Lightweight polymer shell in three sizes
3-IN-1 helmet design:
1) Half-shell open face helmet
2) Removable chin bar with easy push-button system
3) Optional over-the-ear guards with easy push-button system
Sunglasses dock port for easy, secure storage
Fidlock magnetic closure system
360° Turbine Technology
Helps reduce peak brain acceleration at impact speeds associated with concussion
Helps reduce peak brain rotational acceleration
Adjustable visor with breakaway function for rotational impact force reduction
In-molded impact foam for superior energy absorption
Maximized ventilation with 20 vents effective even at low speeds
Moisture wicking, breathable, anti-odor and washable inner liner
Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952–10
Weight:
From 690g (1.52 lbs).
Without chin bar: from 360g (0.79 lbs)
Sizing
#S (51-55cm – 20-21 58″)
#M (55-59cm – 21 58- 23 14″)
#L (59-63cm – 23 14 – 24 34″)

Product construction 


Product construction extra: 

Just a little heavy as an open face

Product performance 


Product performance extra: 

And that extra weight can make the helmet feel a little unstable but only as an open face. Otherwise, performance is truly excellent.

Product weight 


Product weight extra: 

A little heavy in open face mode but lighter than competitors with ear or chin guards attached.

Product comfort 


Product comfort extra: 

Excellent padding and plenty of airflow.

product value 


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Product value extra: 

Three helmets for the price of one good full face helmet.

Overall performance: 

Leatt has done an excellent job. It’s an ambitious helmet in offering three configurations rather than the standard two, for a convertible helmet, but each is a very valid option, providing and comfortable and protective experience.

Product likes: 

Ease of changing configurations, comfort, airflow.

Product dislikes: 

A little heavy in open face mode

Enjoy: 

Yes

Buy: 

Yes

Recommend: 

Yes

Conclusion: 

If you are happy with the weight sacrifice, this helmet has loads to offer.