Helmet Size Guide

Helmet Size Guide

  • Measure circumference of head just above top of ears.
  • Wrap tape gently around head making certain tape lies midway on your occipital bone (that little bump in the middle of the back of your head).
  • Measure 2 or 3 times to be accurate
  • For more information about helmets technology click here.
  • Specialized helmets you can find here.


Models with MIPS technology

S-Works Evade II a Prevail II, Propero 3
Size cm
Small 51 - 56 cm
Medium 55 - 59 cm
Large 59 - 63 cm

Ambush, Ambush Comp a Ambush Comp E-bike
Size cm
Small 51 - 56 cm
Medium 54 - 58 cm
Large 57 - 61 cm
XLarge 59 - 63 cm

Echelon II, Tactic 3
Size cm
Small 51 - 56 cm
Medium 55 - 59 cm
Large 59 - 63 cm

Align, Chamonix
Size cm
Small/Medium 52 - 56 cm
Medium/Large 56 - 60 cm

Universal fit helmet sizing
Model cm
Centro LED 56 - 60 cm
Shuffle Youth 52 - 57 cm
Shuffle Child 50 - 55 cm
Mio 46 - 51 cm


Older models without MIPS technology

"3-SIZE" helmet sizing
Size cm inch
Small 51 - 57 cm 20" - 22,5"
Medium 54 - 60 cm 21,25" - 23,5"
Large 57 - 63 cm 22,5" - 24,75"

Universal fit helmet sizing
Model cm inch
Flash 50 - 58 cm 19,75" - 23"
Sierra 50 - 58 cm 19,75" - 23"
Align 54 - 62 cm 21,25" - 24"
Max 56 - 64 cm 22" - 25,25"

Covert helmet sizing
Size cm inch
Small 52 - 56 cm 20,5" - 22"
Medium 54 - 60 cm 22" - 23,5"
Large 60 - 63 cm 23,5" - 24,75"

Dissident helmet sizing
Size cm inch
Small 54 - 55 cm 21,25" - 21,75"
Medium 56 - 67 cm 22" - 22,5"
Large 58 - 59 cm 22,25" - 23,25"
X Large 60 - 62 cm 23,5" - 24,5"

Small Fry helmet sizing
Model cm inch
Toddler
 44 - 52 cm
 17,375" - 20,5"
Child 47 - 55 cm 18,5" - 21,625"

TT2 helmet sizing
Size cm inch
X Small/Small 52 - 58 cm 20,5" - 23"
Medium/Large 55 - 61 cm 21,75" - 24"

Asia helmet sizing
Size cm inch
Small/Medium 54 - 62 cm 21,25" - 24,5"
Large/X Large 56 - 64 cm 22" - 25,25"