Leatt 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.

Leatt Bike Helmet Size Charts

Half shellSML
DBX 1.0 Mountain51 – 55cm55 – 59cm59 – 63cm
20″ – 21⅝”21⅝” – 23¼”23¼” – 24¾”
DBX 2.0 Trail51 – 55cm55 – 59cm59 – 63cm
20″ – 21⅝”21⅝” – 23¼”23¼” – 24¾”
DBX 2.0 V19.1 Trail51 – 55cm55 – 59cm59 – 63cm
20″ – 21⅝”21⅝” – 23¼”23¼” – 24¾”
DBX 3.0 All-Mountain51 – 55cm55 – 59cm59 – 63cm
20″ – 21⅝”21⅝” – 23¼”23¼” – 24¾”
DBX 3.0 All-Mountain V19.151 – 55cm55 – 59cm59 – 63cm
20″ – 21⅝”21⅝” – 23¼”23¼” – 24¾”
DBX 3.0 All-Mountain V19.251 – 55cm55 – 59cm59 – 63cm
20″ – 21⅝”21⅝” – 23¼”23¼” – 24¾”
Half shellXS/SM/L
DBX 1.0 Urban51 – 55cm55 – 59cm
20″ – 21⅝”21⅝” – 23¼”
Full-Face – DHSMLXL
DBX 3.0 DH V20.155 – 56cm57 – 58cm59 – 60cm61 – 62cm
21⅝” – 22″22½” – 22¾”23¼” – 23⅝”24″ – 24½”
DBX 4.0 V19.155 – 56cm57 – 58cm59 – 60cm61 – 62cm
21⅝” – 22″22½” – 22¾”23¼” – 23⅝”24″ – 24½”
DBX 4.0 V19.355 – 56cm57 – 58cm59 – 60cm61 – 62cm
21⅝” – 22″22½” – 22¾”23¼” – 23⅝”24″ – 24½”
DBX 4.0 V20.155 – 56cm57 – 58cm59 – 60cm61 – 62cm
21⅝” – 22″22½” – 22¾”23¼” – 23⅝”24″ – 24½”
Full-Face – DH/BMXXSSMLXLXXL
DBX 5.0 V19.153 – 54cm55 – 56cm57 – 58cm59 – 60cm61 – 62cm63 – 64cm
20¾” – 21¼”21⅝” – 22″22½” – 22¾”23¼” – 23⅝”24″ – 24½”24¾” – 25¼”
DBX 6.0 CARB V2353 – 54cm55 – 56cm57 – 58cm59 – 60cm61 – 62cm63 – 64cm
20¾” – 21¼”21⅝” – 22″22½” – 22¾”23¼” – 23⅝”24″ – 24½”24¾” – 25¼”
Convertible – DHSML
DBX 3.0 ENDURO V251 – 55cm55 – 59cm59 – 63cm
20″ – 21⅝”21⅝” – 23¼”23¼” – 24¾”
DBX 3.0 ENDURO V19.151 – 55cm55 – 59cm59 – 63cm
20″ – 21⅝”21⅝” – 23¼”23¼” – 24¾”
MTB 4.0 ENDURO V2151 – 55cm55 – 59cm59 – 63cm
20″ – 21⅝”21⅝” – 23¼”23¼” – 24¾”