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Scorpion EXO-400 Synergy Helmet (3XL Only)
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Video Reviews (3)

Scorpion EXO-400 Synergy Helmet (3XL Only) Videos

Scorpion EXO-400 Synergy Helmet

  • Advanced Polycarbonate Composite Engineered Shell: Quiet, aero-tuned design for wind-tunnel tested comfort. EPS-lined chin bar for additional protection.
  • SpeedShiftTM quick-change shield system (patent pending): Easy, secure tool-less faceshield changes in ten seconds or less.
  • EverClearTM no-fog faceshield: Optically-correct shield with state-of-the art fog-free technology and anti-scratch hardened coating.
  • KwikWickTM moisture-wicking helmet liner and cheek pads: Breathable, easily removable and washable.
  • Ventilation system: Adjustable, indexed front and rear vents with aero-tuned rear spoiler reduce lift, create vacuum and maximize airflow through helmet.
  • Breath-deflector: Enhanced fog-free performance.
  • Custom liner and cheek pad kits: Available in hot colors and wild patterns.
  • The EXO-400 Synergy Helmet is Snell M2010/DOT Certified. 
  • Size 3XL is DOT Certified Only.
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Scorpion EXO-400 Synergy Helmet 4.8 5 19 19
Perfect Fit This probably depends on the shape/size of your head, but this in medium is the perfect fit for me. I can wear the helmet all day without getting uncomfortable. It breathes nicely thanks to the many vents. I would recommend buying a tinted shield for this. The clear will not cut it on a sunny day; it is only good for nighttime use. March 2, 2014
My first helmet Being a new rider I wanted a decent helmet rather than a cheap eBay helmet like most newbies. I didn't want to go overboard with a $400 helmet or sacrifice quality. I was impressed with the finish the second I opened it, pictures do this helmet no justice. Cleaning the visor is a simple process so replacing the visor will be too when that time comes. My only issues were with fitment. The cheek pads were so thick they were literally pressing my cheeks against my teeth making it nearly impossible to talk even though I already ordered one size bigger than chart. I removed a little of the padding to where it fit snug but still had plenty of cushion to fix this, probably not a good practice, but in my opinion the padding is slightly overboard around the mouth area. People say these are loud helmets, but after trying a few others out, it doesn't seem any different. I went quite a while without knowing how to correctly operate the vents, now that I know how, honestly it doesn't seem to change anything. Even at higher speeds messing with the vents has little effect on airflow or noise. The only other complaint is the supposed scorpion anti fog visor. Living in Michigan as soon as the temps began hitting low 50s riding without the visor open became near impossible due to fogging. All in all for the price and looks it was well worth my $$$ but I think my next helmet will definitely be a top tier model. January 29, 2014
Great helmet for the money Helmet fit beautifully right out of the box. Vents are a touch small, but easy enough to find even with gloves on with a few minutes practice. The airflow is much better than my other helmet, fits better, and my breath doesn't fog up the visor! All in all, an excellent helmet for starting out. November 25, 2013
Feeling safe and stylish Great helmet! Snell and DOT certified leave me feeling safe in this beautiful gear. The video does the design and colors no justice. I got the chameleon XL and while it fits pretty snuggly in the cheeks it's pretty quiet and looks fantastic. Would definitely buy another (bigger) one. September 27, 2013
Great fit, style, and doesn't fog. It fits tight and snug as new. Feels like it will wear in to a perfect fit. Did not fog throughout a florida hot and humid, 6 hour motorcycle training class. August 22, 2013
Great product Picked the EXO-400 up on close out price. I've been very pleased with the product. August 19, 2013
Good helmet, good quality. After reading a lot of information, I ordered a medium, although I was just on the cusp of medium and large. This helmet turned out to be a scootch too small for me, but I liked it enough that I kept it for my fiancee, and purchased another helmet (a large) for myself. Nothing particularly outstanding, it has no negatives that are outstanding either. It is a good value, and a very good choice. August 19, 2013
Great helmet for price I have only been riding a short time and worn two helmets. This helmet took a little longer to break in than the HJC CL-16, but it fits great. I really like the look and it breathes well. Just as well as the HJC I would say. For the price, I cant imagine a better helmet in the range. after riding with this for a little while, I would venture to say it would hold up as a well as some higher end models. Very satisfied with this product. July 27, 2013
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Have a functionality, fit, or otherwise product-specific question about the Scorpion EXO-400 Synergy Helmet (3XL Only)? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Scorpion EXO-400 Synergy Helmet (3XL Only)
Already Asked: 2 Questions, 5 Answers
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RevZilla Store asked: Why did you choose this?
Kyle K: Needed another helmet for a passenger and this was Snell and DOT approved for maximum safety!!! Feb 14, 2014
John M: Size, there are limited 3xl helmets available, price. Dec 30, 2013
Bennett M: Cheap and good-looking Snell certified helmet. Aug 16, 2013

Scorpion Helmets

SizeHat SizeHead Circumference (in) Head Circumference (cm)
XS6 5/8
20 7/8 - 21 1/4
SM6 7/8 - 7
21 5/8 -2255-56
MD7 1/8 - 7 1/4 22 7/16 - 22 13/16
LG7 3/8 - 7 1/2
23 1/8 - 23 5/859-60
XL7 5/8 - 7 3/4
24 - 24 3/8
2XL7 7/8 - 8
24 13/16 - 25 3/16 63-64
3XL8 1/8 - 8 1/4
25 9/16 - 26

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Click here to see the full Scorpion Size Chart
Product Style RevZilla SKU ID Manufacturer Product # Availability
Red / XS 818668 40-7012 Out of Stock
Red / SM 818669 40-7013 Out of Stock
Red / MD 818670 40-7014 Out of Stock
Red / LG 818671 40-7015 Out of Stock
Red / XL 818672 40-7016 Out of Stock
Red / 2XL 818673 40-7017 Out of Stock
Red / 3XL 818674 40-7018 Out of Stock