GMax OF77 Butterfly 3/4 Helmet

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Product Details

The OF77 features the all new SpaSoft Coolmax interior which combines the moisture wicking properties of Coolmax with the anti-microbial properties of bamboo. The OF77 is like having two helmets in one. It offers the comfort of an open face helmet with the ability to quickly and easily convert into a full face helmet with the installation of the optional snap-in jaw piece.


  • New SpaSoft DuPont Coolmax® interior keeps you dry and comfortable. Coolmax® wicks moisture away from your body and dries quickly. Charcoal bamboo fiber keeps odors away by eliminating bacterial growth
  • Removable, adjustable, washable Spa Soft Coolmax® interior allows for easy cleaning and custom fitting
  • GMAX D.E.V.S (dual exhaust venting system) top and rear vents reduce temperature by allowing hot air to escape from the top of the helmet
  • Vents close to completely seal out the cold
  • 100% UV400 protection from the anti-scratch hard coated face shield for a longer lasting clear view
  • Tinted inner sun shade with anti-fog coating
  • Lightweight polycarbonate shell. Large size only 3.2 lbs.
  • Optional anti-fog, maximum seal double lens face shield available (sold separately)
  • Optional brake light kit available (sold separately)
  • Optional snap-in jaw piece with breath guard and chin curtain available (sold separately)
  • DOT approved

5 Reviews Hide Reviews Show Reviews

  • Helmut


    Review by Debbie dolson on October 19th, 2023

    Great product fast service

  • Fit and color


    Review by Love it on September 6th, 2023

    I wanted a helmet that was pretty and you’re pretty limited, however this one is beautiful. Was hoping for purple, however pink was in stock. Super pleased and fits great. Bonus are the pockets for a headset. Love it.

  • Gmax helmet


    Review by Margaret Allaby on August 24th, 2023

    I absolutely love this helmet! The fit was true to size and it is nice and light.

  • Gmax 3/4 helmet . I was astonished of all the craftmanship. The headliner is what got me because it compares to my high end headliners. And all for $177.00


    Review by Tim on August 24th, 2023

    Fit and finish is everything and even the graphics are amazing.

  • Hèlent


    Review by Nancy Caron on July 21st, 2023

    Really nice and confortable. Delivery before i was supposed to get it. Easy to buy great price

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