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Specifications

  • Type: Aggressive Trail / Enduro / XC MTB Helmet
  • Vents: 20
  • Coverage: Lower occipital bone rear, extended temporal coverage front
  • Construction: In-Moulding system, MIT technology
  • Shell: Polycarbonate outer with EPS inner liner
  • Visor: Removable multi-position ratcheting visor with alloy bolts
  • Retention: Octo Fit (rubberised Micro Dial, halo-style cradle)
  • Padding: CoolMax (removable, washable, sweat-evaporating frontal pads)
  • Chinstrap: Eco Leather (anallergic, washable)
  • Goggle Retention: Integrated rear clips
  • Action Cam Mount: Built-in, optimized for GoPro
  • Weight: 310g (size M, CPSC)
  • Certification: CPSC 1203
  • Color: Light Blue / White

Sizing Chart

  • M: 52-58 cm (20 1/2 - 22 7/8 in)
  • L: 59-62 cm (23 3/8 - 24 1/2 in)

FAQ

What is the Rex best for?

Aggressive trail riding, enduro, and XC racing where you want full cranial coverage, goggle compatibility, and a built-in action cam mount. The Rex is Kask's most aggressive half-shell MTB helmet.

How does the Rex compare to the Caipi?

The Rex is more enduro-focused with a multi-position ratcheting visor, integrated goggle retention clips, and a built-in GoPro mount. The Caipi is lighter, more streamlined toward XC and gravel use, and has 22 vents with no goggle clips. Choose the Rex for enduro and aggressive trail; choose the Caipi for XC, marathon, and gravel.

Can I run goggles with the Rex?

Yes. The visor pivots up high enough to stash goggles underneath, and integrated goggle retention clips at the rear keep the strap from slipping during rough descents and steep technical sections.

What cameras does the action cam mount work with?

The built-in action cam mount on the top of the shell is optimized for GoPro cameras. It removes cleanly when not needed, leaving a flush plate over the helmet.

Best For

Enduro racers, aggressive trail riders, and XC racers who want full cranial coverage, goggle compatibility, integrated camera mount, and Kask's premium build quality in a lightweight half-shell MTB helmet.

Kask Rex – Light Blue/White Reviews:

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