Kask Protone Icon

52 - 58 cm
65Ratings
BrandMore from Kask
Test reportsVery good based on 1 test
Delivered between Wed, 1.7. and Thu, 2.7.
More than 10 pieces in stock at supplier
free shipping

Colour15

Size3

Product details

New Kask Top Road Helmet – Improved Aerodynamics, Compatible with Sunglasses

The Protone is arguably the most advanced helmet in the current Kask lineup. Technically innovative and featuring a unique look, it was developed in collaboration with the successful Team Sky, setting standards in ventilation, heat dissipation, and aerodynamics. The large openings significantly reduce the contact area with the head, while an internal substructure keeps the helmet intact in the event of a fall.

Details:

  • In-Moulding Construction: The innovative injection molding technology bonds the inner polystyrene GAP foam with the outer polycarbonate shell, providing better shock absorption.
  • Multilayer Open-Cell Construction: Ensures higher safety and seamless protection, thanks to a polycarbonate layer on the top shell, sides, and back.
  • 20 ventilation openings
  • 3D-Dry System: Antibacterial padding made from Coolmax material (removable and washable).
  • Headset with Octo-Fit System for optimal adjustability: Rubberized micro-dial adjustment system for improved grip.
  • Antibacterial ECO-Leather Chin Pad: Allergy-free and washable closure system that is extremely comfortable and prevents skin irritation.
  • Note: Size corresponds to head circumference. Please measure beforehand!
  • Intended use: Road and MTB
  • S = 50-56 cm, 205 g
  • M = 52–58 cm, 215 g
  • L = 59–62 cm, 250 g.

Key specifications

Colour
Grey
Bike helmet type
Racing bike helmet
Bike helmet size
M
Head circumference
52 - 58 cm
Helmet features
Active ventilation, Reflectors

General information

Item number
19491792
Manufacturer
Kask
Category
Bike helmets
Manufacturer No.
CHE00097-313-58
Release date
8.2.2022

Colour

Colour
Grey
Exact colour description
Grey

Material

Material group
Leather
Material
Coolmax, Kevlar, Polycarbonate shell

Target group

Target group
Women
Age group
Adults

Helmet properties

Bike helmet type
Racing bike helmet
Bike helmet size
M
Head circumference
52 - 58 cm
Helmet shape
Classic
Helmet features
Active ventilation, Reflectors
Air vents
26x

Origin

Country of origin
Japan

Voluntary climate contribution

CO₂ emissions
4.05 kg
Climate contribution
CHF 0.11

Product dimensions

Weight
230 g

Package dimensions

Length
37 cm
Width
23.30 cm
Height
19.60 cm
Weight
789 g

30-day right of return
24 Months Warranty (Bring-in)
1 additional offer

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Bike helmets» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 37.Nutcase
    0.8 %
  • 37.Poc
    0.8 %
  • 39.Kask
    1 %
  • 39.Lumos
    1 %
  • 41.Frezzo
    2.5 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 8.Giro
    2 days
  • 8.MET
    2 days
  • 10.Kask
    3 days
  • 11.iXS
    4 days
  • 12.Bell
    5 days

Return rate

How often is a product of this brand in the «Bike helmets» category returned?

Source: Digitec Galaxus
  • 25.Unit1
    19.8 %
  • 26.Nutcase
    20 %
  • 27.Kask
    20.7 %
  • 28.Thousand
    21.5 %
  • 29.Scott Sports
    21.6 %
Source: Digitec Galaxus

Translation: machine translated
Very good90/100
Rennrad Radsportmagazin Logo
Rank 2 out of 21Rennrad RadsportmagazinHelmtestReleaseJune 2026
  • PositiveWeight
  • PositiveVentilation
  • PositiveFit and comfort
  • PositiveColour selection
  • NegativePrice

Weighing in at 236 grammes, the Kask Protone Icon is by far the lightest helmet in this comparison. It offers excellent comfort even when worn for long periods. The smooth-running, fine-adjustment system with a large rubberised dial allows for very precise fine-tuning. Ventilation is also of a very high standard...