Kask Sizing Chart

KASK Sizing Chart

Adult Bike Helmets (circumference in cm)

Helmet ModelSmallMediumLargeX-Large
Bambino Pro55 - 58cm59 - 62cm
Infinity52 - 58cm59 - 62cm
Mistral55 - 58cm59 - 62cm
Mojito48 - 56cm52 - 58cm59 - 62cm63 - 64cm
Mojito X48 - 56cm52 - 58cm59 - 62cm63 - 64cm
Mojito X Peak48 - 56cm52 - 58cm59 - 62cm63 - 64cm
Protone50 - 56cm52 - 58cm59 - 62cm
Rapido52 - 58cm59 - 62cm
Rex52 - 58cm59 - 62cm
Utopia50 - 56cm52 - 58cm59 - 62cm
Valegro50 - 56cm52 - 58cm59 - 62cm


Adult Bike Helmets (circumference in inches)

Helmet ModelSmallMediumLargeX-Large
Bambino Pro21 21/32 - 22 53/64"23 15/64 - 24 13/32"
Infinity20 15/32 - 22 53/64"23 15/64 - 24 13/32"
Mistral21 21/32 - 22 53/64"23 15/64 - 24 13/32"
Mojito18 7/64 - 22 3/64"20 15/32 - 22 53/64"23 15/64 - 24 13/32"24 51/64 - 25 13/64"
Mojito X18 7/64 - 22 3/64"20 15/32 - 22 53/64"23 15/64 - 24 13/32"24 51/64 - 25 13/64"
Mojito X Peak18 7/64 - 22 3/64"20 15/32 - 22 53/64"23 15/64 - 24 13/32"24 51/64 - 25 13/64"
Protone19 11/16 - 22 3/64"20 15/32 - 22 53/64"23 15/64 - 24 13/32"
Rapido20 15/32 - 22 53/64"23 15/64 - 24 13/32"
Rex20 15/32 - 22 53/64"23 15/64 - 24 13/32"
Utopia19 11/16 - 22 3/64"20 15/32 - 22 53/64"23 15/64 - 24 13/32"
Valegro19 11/16 - 22 3/64"20 15/32 - 22 53/64"23 15/64 - 24 13/32"


How To Determine Your Size

— Helmets —How To Measure
Head Circumference:"Measure the circumference of your head at a spot approx 2 cm (+/- 1 inch) above the eyebrows. Choose the helmet size most closely matching your head’s circumference in the size chart. "
MIPS Helmet Choice:Please note: MIPS equipped helmets fit slightly tighter than standard helmets, so if you are near the upper limit, consider buying a larger size.
Sizing Tip:If your head measurement matches the extreme borderline between two sizes you may want to go with the LARGER size so you have more adjustment room for summer or winter head accessories.


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