Sizing Chart & Specs for the Gmax GM11D Replacement Bottom Trim Rubber
GMAX Helmet Sizing Chart
Circumference
Helmet size
Metric cm
Inches
Letter
Number
47-48cm
18-7/8" - 19-1/4"
YS
6 - 6/18
49-50cm
19-11/16" - 20-1/16"
Yth S/M, YM
6-1/4 - 6-3/8
51-52cm
20-7/16" - 20-7/8"
Yth L/XL, YL, XXS
6-1/2 - 6-5/8
53-54cm
21-1/4" - 21-5/8"
X-Small
6-3/4 - 6-7/8
55-56cm
22" - 22-7/16"
Small
7 - 7-1/8
57-58cm
22-13/16" - 23-1/4"
Medium
7-1/4 - 7-3/8
59-60cm
23-5/8" - 24"
Large
7-1/2 - 7-5/8
61-62cm
24-3/8" - 24-13/16"
X-Large
7-3/4 - 7-7/8
63-64cm
25-3/16" - 25-5/8"
2X-Large
8 - 8-1/8
65-66cm
26" - 26-3/8"
3X-Large
8-1/4 - 8-3/8
The sizing information is provided by the manufacturer and does not guarantee a perfect fit. However, we are happy to assist you with any needed exchanges.
Part Number Status for Gmax GM11D Replacement Bottom Trim Rubber
