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A glossy black full-face motorcycle helmet with a clear visor, shown from a three-quarters angle on a white background. The brand name 'RMX' is visible on the side of the helmet.
A glossy black full-face motorcycle helmet with a clear visor, featuring ventilation slots and a visible DOT 160 rating logo on the side.
A glossy black full-face motorcycle helmet shown from the front against a plain white background, featuring a clear visor and visible DOT 13 certification logo on the lower front.
A top-down view of a black full-face motorcycle helmet with the GMAX logo printed on the lower front, set against a plain white background.
A glossy black full-face motorcycle helmet with a clear flip-up visor, shown from a three-quarters angle on a white background. The brand name 'SCMAX' is visible on the side of the visor.
Black motorcycle helmet with clear visor on a white background
A matte black full-face motorcycle helmet with a clear visor, featuring the brand name 'CMAX' printed in white on the side.
Matte black full-face motorcycle helmet with visible interior padding, ventilation slots, and a printed DOT certification mark on the side, shown against a plain white background.
Black motorcycle helmet with GMAX logo on a white background
Matte black full-face motorcycle helmet with a clear visor and the GMAX logo printed in white on the lower front, shown from a top-down angle against a white background.
A matte black full-face motorcycle helmet with a clear visor, featuring the CMX logo on the side, shown against a plain white background.
A matte black full-face motorcycle helmet with a clear visor, featuring the CMX logo on the forehead, shown against a plain white background.
A glossy black full-face motorcycle helmet with a clear visor, shown from a three-quarters angle on a white background. The brand name 'RMX' is visible on the side of the helmet.
A glossy black full-face motorcycle helmet with a clear visor, featuring ventilation slots and a visible DOT 160 rating logo on the side.
A glossy black full-face motorcycle helmet shown from the front against a plain white background, featuring a clear visor and visible DOT 13 certification logo on the lower front.
A top-down view of a black full-face motorcycle helmet with the GMAX logo printed on the lower front, set against a plain white background.
A glossy black full-face motorcycle helmet with a clear flip-up visor, shown from a three-quarters angle on a white background. The brand name 'SCMAX' is visible on the side of the visor.
Black motorcycle helmet with clear visor on a white background
A matte black full-face motorcycle helmet with a clear visor, featuring the brand name 'CMAX' printed in white on the side.
Matte black full-face motorcycle helmet with visible interior padding, ventilation slots, and a printed DOT certification mark on the side, shown against a plain white background.
Black motorcycle helmet with GMAX logo on a white background
Matte black full-face motorcycle helmet with a clear visor and the GMAX logo printed in white on the lower front, shown from a top-down angle against a white background.
A matte black full-face motorcycle helmet with a clear visor, featuring the CMX logo on the side, shown against a plain white background.
A matte black full-face motorcycle helmet with a clear visor, featuring the CMX logo on the forehead, shown against a plain white background.
New

Gmax FF-18 Solid Helmets (2026)

Gmax FF-18 Solid Helmets (2026)

Brand: Gmax

Type: Helmet

$169.95
$169.95 $169.95
Shipping calculated at checkout.

Available in stock (10)

Riding Styles
Street, Sport, Touring

The GMAX FF-18 Helmet delivers comfort, convenience, and everyday street performance in a lightweight full-face design. Featuring a lightweight poly-alloy shell, integrated drop-down sun shield, SpaSoft™ comfort liner with COOLMAX® CORE technology, and excellent ventilation, the FF-18 is built for commuting, touring, and weekend rides. 

Color: Black
Size: XS

GMAX Helmet Size Charts

To find your approximate helmet size, use a soft sewing tape measure. Start at your forehead about one inch above your eyebrows and measure around the largest portion of the back of your head. If you do not have a soft measuring tape, use a string or phone charging cord, then lay it flat and measure it with a ruler.

GMAX Full Face Helmet Size Chart
Size Head Size (CM) Head Size (IN)
YS 49–50 cm Approx. 19–20 in
YM 51–52 cm Approx. 20–21 in
YL / XS 53–54 cm Approx. 21 in
S 55–56 cm Approx. 21–22 in
M 57–58 cm Approx. 22 in
L 59–60 cm Approx. 23 in
XL 61–62 cm Approx. 24 in
2XL 63–64 cm Approx. 24–25 in
3XL 65–66 cm Approx. 25 in
GMAX Modular Helmet Size Chart
Size Head Size (CM) Head Size (IN)
YS 49–50 cm Approx. 19–20 in
YM 51–52 cm Approx. 20–21 in
YL / XS 53–54 cm Approx. 21 in
S 55–56 cm Approx. 21–22 in
M 57–58 cm Approx. 22 in
L 59–60 cm Approx. 23 in
XL 61–62 cm Approx. 24 in
2XL 63–64 cm Approx. 24–25 in
3XL 65–66 cm Approx. 25 in
GMAX Off-Road Helmet Size Chart
Size Head Size (CM) Head Size (IN)
YS 49–50 cm Approx. 19–20 in
YM 51–52 cm Approx. 20–21 in
YL / XS 53–54 cm Approx. 21 in
S 55–56 cm Approx. 21–22 in
M 57–58 cm Approx. 22 in
L 59–60 cm Approx. 23 in
XL 61–62 cm Approx. 24 in
2XL 63–64 cm Approx. 24–25 in
3XL 65–66 cm Approx. 25 in
GMAX Half Helmet Size Chart
Size Head Size (CM) Head Size (IN)
YS 49–50 cm Approx. 19–20 in
YM 51–52 cm Approx. 20–21 in
YL / XS 53–54 cm Approx. 21 in
S 55–56 cm Approx. 21–22 in
M 57–58 cm Approx. 22 in
L 59–60 cm Approx. 23 in
XL 61–62 cm Approx. 24 in
2XL 63–64 cm Approx. 24–25 in
3XL 65–66 cm Approx. 25 in
GMAX Youth Helmet Size Chart
Size Head Size (CM) Head Size (IN)
YS 49–50 cm Approx. 19–20 in
YM 51–52 cm Approx. 20–21 in
YL / XS 53–54 cm Approx. 21 in
S 55–56 cm Approx. 21–22 in
M 57–58 cm Approx. 22 in
L 59–60 cm Approx. 23 in
XL 61–62 cm Approx. 24 in
2XL 63–64 cm Approx. 24–25 in
3XL 65–66 cm Approx. 25 in
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A glossy black full-face motorcycle helmet with a clear visor, shown from a three-quarters angle on a white background. The brand name 'RMX' is visible on the side of the helmet.

Gmax FF-18 Solid Helmets (2026)

$169.95
$169.95 $169.95

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