The Protone is a an intersection of an aerodynamic design and a traditional road helmet. Kask put their best technologies into the Protone for an unparalleled aerodynamic helmet that suits for your need for speed. Looks and function aside, at its' core the Protone features an inner frame that is designed to break apart upon impact. This absorbs and defrays shock. Kask uses their Octo Fit rubber micro dial adjuster to distribute 180-degrees of equal tension. The floating cradle contact points work well with the internal gel pads to sit comfortably on any head shape. Coolmax inner padding and an eco-leather chin strap keep the Protone sitting comfortably on your head.
innovative inner strengthening frame offers a greater mechanical strength and a better compactness.
Incredibly aerodynamic and top performing shell tested in the wind-tunnel and able to provide a really impressive CX rate.
Faux-Leather Chinstrap made from faux leather
3D dry padding utilizes a multi-layer open cell construction process for the best comfort and performance
Colmax Fiber removable and wshable inner padding in Coolmax material
Inner frame offers greater mechanical strength and better compactness
In-molding joins the inner polystyrine cap to the outer plycarbin one ensuring better shock absorption
MIT guarantees greater safety and complete protection
Octo fit offers an improved fit
Sanitized treated fabric inner fabric treated with antimicrobial and antibacterial sanitized process
Aero-control wind tunnel tested and able to provide a really impressive CX rate
High-Visibility for maximum safety
EN 1078, CPSC 1203, AS/NZS 2063
235g (Size medium)
Head Circumference (in)
19-11/16" - 22-3/64"
20-15/32" - 22-53/64"
23-15/64" - 24-13/32"
Head Circumference (cm)
50cm - 56cm
52cm - 58cm
59cm - 62cm
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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