Bell Helmets
Bell Helmet Sizing Chart
Size Head Circumference
Metric
Head Circumference
Inches
ADULT HELMETS
XS53-54cm20 7/8"- 21 1/4"
SM55-56cm21 5/8"- 22"
MD57-58cm22 3/8"- 22 3/4"
LG59-60cm23 1/4"- 23 5/8"
XL61-62cm24"- 24 3/8"
XXL63-64cm24 3/4"- 25 1/4"
ADULT HELMETS (DRIFTER ONLY)
XS52-53cm20 1/2"- 20 7/8"
SM54-55cm21 1/4"- 21 5/8"
MD56-57cm22" - 22 3/8"
LG58-59cm22 3/4" - 23 1/4"
XL60-61cm23 5/8" - 24"
XXL62-63cm24 3/8" - 24 3/4"
ADULT HELMETS (SHORTY ONLY)
XXS51-52cm20" - 20 1/2"
XS52-53cm20 1/2"- 20 7/8"
SM54-55cm21 1/4"- 21 5/8"
MD56-57cm22" - 22 3/8"
LG58-59cm22 3/4" - 23 1/4"
XL60-61cm23 5/8" - 24"
XXL62-63cm24 3/8" - 24 3/4"
YOUTH HELMETS (SC-X JR ONLY)
S/M49-50cm19 1/4" - 19 3/4"
M/L51-52cm20" - 20 1/2"