Kask Protone Helmet

$299.95 $179.99
(You save $119.96)
Black with Black Trim
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Kask Protone Helmet was developed in conjunction with Team Sky who BTW are a group of stylish guys with some very high demands. The  Protone is the fourth Kask helmet to be developed in collaboration with Team Sky others are the Mojito, Bambino time trial helmet and the Infinity aero helmet.

Aero, light and well ventilated the new Protone has it all and is offered in a variety of colors to suite every kit. 

The Protone takes into account the riders’ posture and how they behave while riding, for example catering for the rider taking off their glasses and inserting them into the the helmet without increasing drag.”

The Protone is lightweight, hitting the scales at a claimed 210g, and Kask reckon that the Octo Fit adjustment system will fit any kind of head shape. It uses removable and washable inner padding, made from Coolmax fabrics which have an antimicrobial treatment.


M - 52-58 cm – 20-1/2 - 22-7/8 Inches
L - 59-62 cm – 23-3/8 - 24-1/2 Inches

Claimed Weight
[size medium] 230 g, [size large] 250 g
  • 5
    Kask Protone Helmet

    Posted by Nam on 29th Jul 2019

    Nice helmet. Perfectly fix. looks nice on the head too. Awesome.

  • 5
    Kask Protone Helmet

    Posted by Wayne Larochelle on 1st Sep 2017

    This is my second Kask and I love this model even more than the first one from 2014. The fir is perfect right out of the box and adjustability is simple with the one touch dial initially or on a ride. I previously used a Giro because of the MIPS feature, but pieces started snapping after a few months. I have a narrow profile and many other models look like a salad bowl on my head. The Kask has a slim profile yet still provides great air flow. Yes a bit pricey, but when you spend 12-15 hours on your bike every week, a great helmet is worth the money.