GMAX GM78S SPC Full Face Helmets can be used as a street or snow helmet, making it extremely versatile. The GM78S Helmet is a full face helmet with an internal flip lens. All GMAX Helmets are lightweight to reduce neck strain and showcase top-quality finishes. They offer superior venting and removable/washable padding. Outer shells are hard coated for a durable, long life and have custom designed graphics covered in clear coat. GMAX GM78S Helmets are offered in Black with an optional Electric Shield. Whichever option you choose, GMAX will put your head in the best helmet you've ever worn!
Lightweight D.O.T. approved thermo-plastic ploy alloy shell
New integrated multi-function red LED rear light with three distinct settings; steady on, slow flash and rapid flash.
Optional wireless L.E.D. brake light kit available
GMAX “D.E.V.S.” adjustable “Dual Exhaust Venting System” Top, side and rear venting reduces fogging and sweating by allowing hot air to escape from the mouth area and top of head
Adjustable chin vent directs air upward across the inside of the shield to help reduce fogging
Interior and styro designed for controlled air flow
New Inner flip tint sun lens with the best anti-fog coating available today
Inner flip shield is easily raised or lowered with a lever located on the exterior of the helmet
State of the art anti-fog double lens shield with anti-scratch hard coated outer lens for longer lasting clear view
Large eye-port for improved range of vision
Removable, washable interior and cheek pads
Deluxe ear pockets for better fit and comfort
Built in speaker pockets for communication systems
Snap-in snowmobile chin curtain for added warmth
Snap-in maximum seal breath guard reduces fogging
Excellent shield sealing reduces cold air and noise
Gmax GM78 Helmet Review at Competition Accessories |
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| Gmax GM78 Helmet Review at Competition Accessories |
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| GMAX Helmet Sizing Chart | | | |
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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
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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.
| Options |
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SKU |
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Retail Price |
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Our Price |
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Availability |
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X-Small, Black
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GM-78SN-XS-BK |
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$149.95 |
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$127.45 |
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Usually Ships in 1-5 Business Days
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X-Small, Black - Electric Shield
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GM-78SN-XS-BKEL |
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$224.95 |
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$191.45 |
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Usually Ships in 1-5 Business Days
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Small, Black
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GM-78SN-S-BK |
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$149.95 |
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$118.95 |
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Usually Ships in 1-5 Business Days
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Small, Black - Electric Shield
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GM-78SN-S-BKEL |
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$224.95 |
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$183.95 |
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Usually Ships in 1-5 Business Days
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Medium, Black
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GM-78SN-M-BK |
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$149.95 |
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$118.95 |
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Usually Ships in 1-5 Business Days
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Medium, Black - Electric Shield
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GM-78SN-M-BKEL |
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$224.92 |
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$183.95 |
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Usually Ships in 1-5 Business Days
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Large, Black
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GM-78SN-L-BK |
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$149.95 |
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$118.95 |
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Usually Ships in 1-5 Business Days
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Large, Black - Electric Shield
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GM-78SN-L-BKEL |
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$224.95 |
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$183.95 |
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Usually Ships in 1-5 Business Days
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X-Large, Black
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GM-78SN-XL-BK |
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$149.95 |
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$118.95 |
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Usually Ships in 1-5 Business Days
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X-Large, Black - Electric Shield
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GM-78SN-XL-BKEL |
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$224.95 |
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$183.95 |
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Usually Ships in 1-5 Business Days
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2X-Large, Black
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GM-78SN-2X-BK |
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$149.95 |
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$118.95 |
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Usually Ships in 1-5 Business Days
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2X-Large, Black - Electric Shield
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GM-78SN-2X-BKEL |
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$224.95 |
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$183.95 |
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Usually Ships in 1-5 Business Days
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3X-Large, Black
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GM-78SN-3X-BK |
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$149.95 |
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$118.95 |
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Usually Ships in 1-5 Business Days
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3X-Large, Black - Electric Shield
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GM-78SN-3X-BKEL |
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$224.95 |
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$183.95 |
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IN STOCK
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