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Kask K31 Crono Helmet

Out of Stock

Item # KSK0008

Don't worry though, we have a lot more Time Trial Helmets in stock than that.

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Item # KSK0008


Kask gives you the aerodynamic edge with the K31 Crono Helmet. With a host of intuitive features that work to keep you comfortable and eliminate drag, the Crono is your ticket to a new level of on-the-bike speed.

  • Horizontal and vertical adjustments for a custom fit
  • Reflective straps and rear logo for safety
  • Easy-to clean, non-allergic synthetic leather chin strap reduces irritation and odor
  • Dual-layer CoolMax liner wicks sweat away
  • Built-in eye shields for better aerodynamics
  • Internal frame keeps helmet together during impact

Tech Specs

Claimed Weight:
280 g
[shell] polycarbonate, [inner shell] polystyrene, [chin strap] non-allergenic synthetic leather, [straps] nylon, [lining] CoolMax
Recommended Use:
time trials
Manufacturer Warranty:
30 days

Size chart


Vertigo, K50 EVO, K50 MTB
Head Circumference18.9-22.8in
K10 MTB, K31 Crono, K10 Race
One Size
Head Circumference20.9-24.0in
How to Measure:
Measure around your head where your hat would fit comfortably.

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Here's what others have to say...

What does it mean by "built in eye...

What does it mean by "built in eye shields"?

Responded on


The eye shield tucks away under the outer shell of the helmet. Thanks

Does this come with the visor?

Does this come with the visor?

Best AnswerResponded on

Visor is extra and runs about $65 but it doesn't look like we have any in stock at the moment.


black k-31 kask helmet

    This is a great fitting helmet with lots of ventalation. the one size fits all really works and the behind the head adjustment works very well. i ride for 3 -4 hrs in summer heat & still as cool as.many regular helmets... the flip up visor is a plus and allows the wind screen to be half open or in any position ... i would recomend the helmet and use it for everyday rides ... have used giro advantage 2 ...