Sidi Sale — Save 20% or more on elite shoes for ultimate rides
This carousel displays a list of buttons that updates the main product image when a button is clicked
  • Options
  • Detail Images

LeattMTB 4.0 AllMtn Helmet


Item # LBRI063

Select options
  • Cancel
  • Select options
  • Black, L ($189.99)
  • Black, M ($189.99)
  • Black, S ($189.99)
  • Cactus, L ($189.99)
  • Cactus, M ($189.99)
  • Cactus, S ($189.99)
  • Chilli, L ($189.99)
  • Chilli, M ($189.99)
  • Chilli, S ($189.99)
  • Sand, L ($189.99)
  • Sand, M ($189.99)
  • Sand, S ($189.99)
  • 100% Guaranteed Returns
  • Free Shipping on orders over $50

Item # LBRI063

Why We Like The MTB 4.0 AllMtn Helmet

Brush up on your history of Leatt, and you'll discover a rich past based upon the creation of safer, smarter equipment for those that ride off-road. The California-based brand's two decades of experience has provided us with reliable gear from body armor to neck braces, and the MTB 4.0 AllMtn Helmet is their latest launch to offer superior protection at an affordable price. Its rugged frame is built from a lightweight polymer compound to reduce neck fatigue as you grind up the mountain, and EPS foam handles higher speed impacts no matter where the trail takes you. We especially like Leatt's 360-degree Turbine Technology, which dramatically reduces harmful rotational and low-G impact forces.
  • Rugged full-face helmet tackles trail rides and enduro
  • Chin bar shields the lower face over difficult terrain
  • 360° Turbines guard against low-speed and rotational impacts
  • Polymer shell pairs with EPS foam to absorb greater impacts
  • Dri-Lex liner wicks moisture to promote breathability
  • Fidlock magnetic buckle for easy entry and exit
  • Optional neck brace compatibility provides greater protection

Tech Specs
Shell Materialpolymer compound
Impact FoamEPS, EPO
Ventilation22 vents
Fit Adjustmentretention dial
Full Faceyes
CertificationsAS/NZS 2063:2008, ASTM F1952–10, EN1078, CPSC 1203
Recommended Usedownhill, enduro, trail
Manufacturer Warrantylimited


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.

What do you think about this product?