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  • Leatt 3.0 All Mountain Helmet
  • Leatt 3.0 All Mountain Helmet
  • Leatt 3.0 All Mountain Helmet
  • Leatt 3.0 All Mountain Helmet
  • Leatt 3.0 All Mountain Helmet
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Leatt3.0 All Mountain Helmet
Sale 21% Off$134.95 $169.99

Item # LBR0074

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Item # LBR0074

Protection for the real world.

Until a few years ago, most helmets on the market only absorbed the crushing forces of straight-on impacts, which is ultimately a poor design, considering most trail riders experience crashes at an angled plane of impact. Understanding this divergence between theoretical protection and the reality of crashes on the trail, Leatt designed the 3.0 All Mountain Helmet with 360˚ Turbine Technology, alongside a host of functional ventilation, customizable fit options, and striking style for the all-mountain rider.

This technology disperses rotational forces with tiny, turbine-like circles made of Armourgel placed throughout the helmet. Armourgel turbines are relatively soft and pliable until impact, at which point they harden up and rotate ever-so-slightly to lessen the force applied to your cranium, should you take a nasty fall or crash into rocks and trees lining the trail. Don't just take our word for it—Leatt is claiming an impressive 30 percent decrease in rotational forces with this ingenious design. Combined with the up-to-date construction techniques, such as a lightweight polycarbonate shell and 3D in-mold impact foam, this helmet is set to conquer the most technical of trails without sacrificing protection.

  • Exceptional protection from angled crashes
  • 360˚ Turbine Technology disperses rotational forces
  • Lightweight polycarbonate shell with 18 large vents
  • 3D in-mold impact foam for certified impact protection
  • Adjustable visor breaks away for additional safety
  • Fidlock magnetic buckle and adjustable dial fit system
  • Moisture-wicking, breathable liner with anti-odor finish
Tech SpecsSize
Tech Specs
This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to
Shell Material
Impact Foam
3D in-molded impact foam, 360 Turbine Technology
18 sculpted vents
Fit Adjustment
Fidlock mangetic buckle, micro-adjustment dial
break-off, adjustable
EN 1078, CPSC 1203
Recommended Use
mountain bike
Manufacturer Warranty


Head Circumference

20.8 - 21.25in

(53 - 54cm)

21.6 - 22in

(55 - 56cm)

22.5 - 22.8in

(57 - 58cm)

23.3 - 23.7in

(59 - 60cm)

24 - 24.5in

(61 - 62cm)

24.8 - 25.2in

(63 - 64cm)

How to Measure:
Measure the circumference of your head with a tape measure. Place the tape measure slightly above the ear and bring it across the mid forehead completely circling the head about 1 inch above the eyebrows. Take several measurements to make sure you have the largest size. If you do not have a tape measure, use a string and measure it against a ruler.

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Best fit ever

  • Familiarity: I've put it through the wringer

This Leatt 3.0 Helmet fits very well. Probably the best fit I've ever had. I always felt between sizes with the last brand I wore (which worked awesome last time I hit my head), but not so with the Leatt 3.0. Regarding the other features, it is well ventilated, fit dial works smoothly with a large range, and the non-buckle chin strap is the best. I highly recommend it.

Very comfortable!

  • Familiarity: I've used it several times

This helmet is super comfortable. I tried several other helmets before I landed on this one. The retention system is great, and I appreciate that it has a torsional impact protection system. My only worry is that I may not be able to strap my light onto it due to the vent spacing/locations. Other than that, I don't have any complaints at all.