Kask Protone Helmet

We’ve read the reviews across the web for the Kask Protone Helmet and summarize the results below:

Universal Ranking

PeakScore: 87 (out of 100)
User Rating: 4.5 stars 
Expert Rating: 4 stars

Number of Ratings Reviewed: 280

Pros & Cons

Reasons to buy:

User Reviews

  • Lightweight.
  • Protone fit provides full contact, adding to improved safety and security.
  • High quality strapping system.
  • Very comfortable and well ventilated.
  • Rear neck strap adjusts for height and tightness.
  • Top-of-the-line in terms of safety and protection against trauma.
  • Easy to put on and stays in place.
  • Leather chin strap for comfort.
  • Helmet tightens via dial, and also adjusts up and down.
  • Plenty of options for adjustment with vertical/horizontal retainer system.
  • No wind noise.

Expert Reviews

  • The cradle fastens to the inside of the helmet’s polystyrene body at your temples and at the rear for a snug and protective fit.
  • Straps always sit flat and there are no dividers to set underneath your ears.
  • Chinstrap is easy to wipe clean when it becomes sweaty.
  • Antibacterial and antimicrobial inner padding.
  • Large ventilation holes at the front of the helmet.
  • Designed using fluid dynamics software to have one of the lowest drag coefficients of any ventilated helmet.
  • 20 vents for good ventilation.
  • Select from 19 color combinations.

Reasons NOT to buy:

User Reviews

  • Some of the grey cushion inserts in the adjustable back part of the fit mechanism come off.
  • Not the sleekest or lowest profile design.

Expert Reviews

  • Rear plastic parts occasionally dig in at first but can be adjusted for a better fit.
  • No rear ventilation.
  • Expensive.
  • Uncomfortable.


The Kask Protone Helmet is a high-end choice that is ideal for serious cyclists who aren’t afraid to spend money on an aerodynamic, stylish, functional, breathable, and extremely safe helmet. The high price is overlooked due to the protective mechanisms which have proven to save lives in crashes, and aerodynamic technology which is ideal for all competitive cyclists.


Note: User and expert rankings were reviewed across the web, including here: 1, 2, 3, 4.