TestedProtone Icon road bike helmet from Kask

Matthias Borchers

 · 12.09.2022

Tested: Protone Icon road bike helmet from KaskPhoto: Matthias Borchers

In this article, we use so-called affiliate links. With every purchase through these links, we receive a commission from the merchant. All relevant referral links are marked with . Learn more.

The new Protone Icon from Kask is here. TOUR has tested the racing bike helmet from Italy. Here are the most important parameters.

The central air intake on the new Protone Icon from Kask is strikingly V-shaped. The wind flows noticeably through this and the 13 other slits in the helmet shell, which effectively cools heated heads in summer temperatures.

Convincing workmanship

The workmanship of the new top model from Italian production - almost all competitors have their helmets made in China - is also impressive: the helmet shell shows no signs of moulding, the pads fitted with Velcro fasteners are cleanly cut, the seams of the webbing are first-class.

The easy-grip dial with a fine detent for adjusting the width is very pleasing, as is the generously adjustable headband height with a five centimetre difference. In size M, the 233 gram helmet fits perfectly on heads with a circumference of 55 to a maximum of 58 centimetres, with plenty of room for the ears in the strap triangle. Some testers complained of slight pressure marks on the forehead after wearing the helmet for a long time, and the leather chin strap is relatively stiff.

Facts about the Kask Protone Icon

Price: 275 Euro >> available here

Weight233 gram (M)
Sizes: S (50-56 cm), M (52-58 cm), L (59-62 cm)

How do you like this article?
Protone Icon road bike helmet from KaskPhoto: Matthias BorchersProtone Icon road bike helmet from Kask

+ great workmanship, well ventilated, lightweight

- Chin strap a little stiff


Matthias Borchers is an expert for clothing and accessories in the test department of TOUR. As an amateur cyclist, he has completed the TOUR-Transalp and the TOUR-Trans Austria. His reportage trips from San Francisco to Sakai and 17 trips to the Tour de France with around 30,000 motorhome kilometres are also formative.

Most read in category Buying advice