Helmet MTB AllMtn 4.0 - 2025

Discover the pinnacle of mountain biking. Leatt’s all-new MTB All-MTN 4.0 helmet is created for those who venture where the air is thinner, and the trails are tougher. Whether you're a traditional mountain biker or an eBiker enthusiast, experience a helmet that seamlessly fuses style with cutting-edge protection, embodying the spirit of alpine adventure.

The ultra-stylish design is not just about looks - the helmet houses 360° Turbine Technology, significantly reducing brain acceleration during impacts. The features include an adjustable visor and sunglasses dock port, making it the perfect companion for high-altitude escapades. Enjoy all-day comfort, mountain-ready durability, and unmatched functionality in one helmet. Dive into the new age of mountain biking with the MTB All-MTN 4.0.

• Lightweight Polymer shell
  
• Sunglasses dock port for easy, secure storage
  
• Fidlock magnetic closure system
  
• 360° Turbine Technology
  
• Reduced peak brain acceleration by up to 30% at impact speeds associated with concussion
  
• Reduces peak brain rotational acceleration by up to 40%
  
• Adjustable visor with breakaway function for rotational impact force reduction
  
• Maximized ventilation with 18 vents. Optimized for riding and effective even at low speeds
  
• Moisture wicking, breathable, anti-odour and washable inner liner
  
• In-moulded EPS + EP0 impact foam for superior energy absorption
  
• Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15, NTA 8776 (Helmets for S-EPAC riders)
  
• Weight:
  
• From 430 g (0.95 lb)
  
• Sizing
  
• #S (51-55cm – 20-21 5⁄8")
  
• #M (55-59cm – 21 5⁄8- 23 1⁄4")
  
• #L (59-63cm – 23 1⁄4 - 24 3⁄4")