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KaskDefender Bike Helmet


Item # KSKZ00C

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  • Black, L ($595.00)
  • Black, M ($595.00)
  • Blue, S ($595.00)
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Item # KSKZ00C

Defender Bike Helmet

We've always loved Kask helmets for their superior comfort and quality, so we're happy to see they've entered the world of gravity mountain biking with the Defender full-face helmet. It features a full carbon shell with 18 large ventilation ports, making for a strong, lightweight, well-ventilated helmet with full ASTM downhill race certification. The chin guard provides comprehensive coverage, and uses a replaceable foam air filter that preserves airflow while guarding against dust and debris.

  • A lightweight, downhill-certified, carbon full-face helmet
  • Ideal for downhill, enduro, and freeride mountain biking
  • Carbon shell offers first-rate protection at a low weight
  • Excellent airflow thanks to 18 large ventilation ports
  • Engineered for the widest possible field of vision
  • Double D-ring strap is a secure, trustworthy closure
  • Includes breathable anti-odor padding and a helmet bag
  • Quick-release cheek padding for easy cleaning and safe removal after a crash

Tech Specs
Shell Materialcarbon
Impact FoamEPS
VentilationHyVent (18 ventilation ports)
Fit Adjustmentdouble D-ring closure
Visoradjustable break-away
CertificationsEN 1078: 2012+A1:2012, ASTM F1952-15
Manufacturer Warrantylimited lifetime


Mojito X, Mojito X Peak
Head Circumference

18.1 - 22in

(48 - 56cm)

20.5 - 22.4in

(52 - 58cm)

23.2 - 24.4in

(59 - 62cm)

24.8 - 25.2in

(63 - 64cm)

Infinity, Protone, Rex, Rapido, Valegro, Utopia, Caipi
Head Circumference

19.7 - 22in

(50 - 56cm)

20.5 - 22.4in

(52 - 58cm)

23.2 - 24.4in

(59 - 62cm)

Bambino Pro
Head Circumference

21.7 - 22.4in

(55 - 58cm)

23.2 - 24.4in

(59 - 62cm)

How to Measure:
Measure around your head where your hat would fit comfortably.

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