Wrap a tape measure horizontally around your forehead. Select the helmet that is the closest fit to that size. A helmet should fit snug on your head. If it moves while wearing, it is too large. If it is painful to wear, it is too small.
ADULT SIZES
Size
Centimeter
Hat Size
Inches
2X-Small
51-52
6
3/8 - 6 1/2
20 - 20 1/2
X-Small
53-54
6
5/8 - 6 3/4
20 7/8 - 21 1/4
Small
55-56
6
7/8 - 7
21 5/8 - 22
Medium
57-58
7
1/8 - 7 1/4
22 1/2 - 7 7/8
Large
59-60
7
3/8 - 7 1/2
23 1/4 - 23 5/8
X-Large
61-62
7
5/8 - 7 3/4
24 - 24 3/8
2X-Large
63-64
7
7/8 - 8
24 3/4 - 25 1/4
3X-Large
65-66
8
1/8 - 8 1/4
25 5/8 - 26
HJC CS-5N Helmet Reviews :
Customer Reviews
HJC CS-5N Helmet
Rated 10
out of 10
based on 3 reviews
Comment: I love this helmet!! The fit is perfect & I usually have a hard time since I am right in the middle btwn XS & S. The small is snug enough without being too constrictive. Made well & looks sharp!
Lucy
Atlanta, GA
HJC CS5N Helmet
Comment: Love it, fits really good and is comfortable.
Dusty Taylor
Colorado
HJC CS-5N Helmet
Comment: Very comfortable, love the color, fits great.