Kask Bike Helmet Size Chart

1. Achieve the perfect fit by measuring your head circumference correctly.

2. Watch the video below to see how to measure your head correctly.

3. VIDEO: How To Measure For A Bike Helmet

Follow Heads Don’t Bounce on Youtube!

4. On the chart below, find the helmet model that you are interested in, then find your head measurement to see which size you need.

Kask Bike Helmet Size Charts

Kask Road and Urban Bike Helmets

ModelSMLXL
Lifestyle
51 – 5859 – 62

20 5/64″ – 22 53/64″  23 15/64″ – 24 13/32″
Mojito X48 – 5652 – 5859 – 6263 – 64
18 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 peak48 – 5652 – 5859 – 6263 – 64
18 7/64″ – 22 3/64″20 15/32″ – 22 53/64″23 15/64″ – 24 13/32″24 51/64″ – 25 13/64″
Rapido
52 – 5859 – 62

20 15/32″ – 22 53/64″23 15/64″ – 24 13/32″
Valegro50 – 5652 – 5859 – 62
19 11/16″ – 22 3/64″20 15/32″ – 22 53/64″23 15/64″ – 24 13/32″

Kask Triathlon Bike Helmets

ModelSML
Bambino pro
55 – 5859 – 62

21 21/32″ – 22 53/64″23 15/64″ – 24 13/32″
Bambino pro evo
55 – 58

21 21/32″ – 22 53/64″
Infinity
52 – 5859 – 62

20 15/32″ – 22 53/64″23 15/64″ – 24 13/32″
Mistral
55 – 5859 – 62

21 21/32″ – 22 53/64″23 15/64″ – 24 13/32″
Protone50 – 5652 – 5859 – 62
19 11/16″ – 22 3/64″20 15/32″ – 22 53/64″23 15/64″ – 24 13/32″
Utopia50 – 5652 – 5859 – 62
19 11/16″ – 22 3/64″20 15/32″ – 22 53/64″23 15/64″ – 24 13/32″

Kask Mountain Bike Helmets

ModelSMLXL
Caipi50 – 5652 – 5859 – 62
19 11/16″ – 22 3/64″20 15/32″ – 22 53/64″23 15/64″ – 24 13/32″
Defender55 – 5657 – 5859 – 6061 – 62
19 11/16″ – 22 3/64″22 7/16″ – 22 53/64″23 15/64″ – 23 5/8″24 1/64″ – 24 13/32″
Rex
52 – 5859 – 62

20 15/32″ – 22 53/64″23 15/64″ – 24 13/32″