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Discontinued Product!

The Speed and Strength SS300 Moto Mercenary Helmet
has been discontinued and will not be returning
Replacement Suggestion:
Speed & Strength Moto Mercenary
Out of Stock
Speed and Strength SS300 Moto Mercenary Helmet
  • Speed and Strength SS300 Moto Mercenary Helmet - Matte Black
  • Speed and Strength SS300 Moto Mercenary Helmet - Matte Black

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Video Reviews (2)

Speed and Strength SS300 Moto Mercenary Helmet Videos

Weight: 2.02 lbs

What's this?

Speed and Strength SS300 Moto Mercenary Helmet


  • “A.T.P.A.” Advanced  Thermo-Poly Alloy Shell
  • Meets or exceeds DOT standards
  • Comes with a Double D-Ring chin strap or a Speed Strap quick release chin strap
  • Includes three snap shorty visor

Note: Does not come with vents or ear pads as noted in the video. 

Speed & Strength Helmet Sizing

Size Head (cm)
XS 53 - 54
SM 55 - 56
MD 57 - 58
LG 59 - 60
XL 61 - 62
2XL 63 - 64

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

How To Measure

H Head Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
Product Style RevZilla Item # Manufacturer Product # Availability
Matte Black / XS 876377 877725 Out of Stock
Matte Black / SM 876378 877726 Out of Stock
Matte Black / MD 876379 877727 Out of Stock
Matte Black / LG 876380 877728 Out of Stock
Matte Black / XL 876406 877729 Out of Stock
Matte Black / 2XL 876407 877730 Out of Stock


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We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

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Speed and Strength SS300 Moto Mercenary Helmet 5 5 7 7
Cool look Fits well, looks cool, easy snap off. Bought on clearance, no regrets January 26, 2016
Seems like a nice helmet I bought this for my wife. She rides a Vespa. She has one Fulmer scooter style helmet which she loves. I bought this helmet and the S&S matching shoes for her. In NY she hasn't ridden with it yet. The quality looks really good. The graphics are beautiful. Quick release is a nice feature too. Size seems pretty comparable to other brands. There is wide range of sizes available. She says it's comfortable. As a SHOEI guy, I am please with this helmet. Especially since REVZILLA has a great closeout price. I wouldn't hesitate to buy this or other S&S again March 1, 2016
Love it!! This helmet fits true to size and is very stylish looking in the design. RevZilla customer service is very friendly and easy to work with August 22, 2015
Awesome half helmet that doesn't lift at high speeds!! I love everything about his helmet. I was looking for a half helmet for summer that was not too expensive and didn't lift up on the highway. I found it!!! The graphics are great looking. Also, the quick release chin strap is the best thing ever. Really durable and super easy to open and close. It's so easy, you can do it with your gloves on, no problem. I have quite a small head. (6 7/8). The size chart said I was a small but I'm glad I went with the XS. It's snug but comfortable. Hope that helps! June 5, 2015
Good product Helmet fits snug and doesn't move around at highway speeds. The speed clip works well. Only complaint is the lack of venting that cheaper helmets offer. May 25, 2015
This product has great features I like the quick clip for putting helmet on and removing. September 1, 2014
My new go-to helmet I received this helmet right before my trip to OBX Bike Week so I was able to get some good riding time in with it. I'll try to hit on all the major points... Looks: The looks alone are reason enough to buy this helmet. The flat black finish is awesome and the graphics have this "tattered" look to them, so the helmet already looks like it's seen the open road many times before. Features: The chin strap is my favorite part of this helmet, it latches and disconnects in seconds. It acts almost exactly like a seatbelt. Just pull the strap, slide the buckle into the slot, and you're done. It's so easy you can do it with your gloves on, for those of you who forget to put your helmet on before your gloves like myself. Like the description says, it does not come with the front vent. This wasn't a deal breaker for me but I did notice the helmet gets a little hot on long rides. Fit: My helmet size is between a medium and large so I opted for the large on this helmet. The sizing is perfect, it's a snug fit but not uncomfortable by any means. I also like that I didn't experience any "helmet lift" like I have with other half helmets. Overall I couldn't be happier with this helmet. It's become my new go-to helmet and at just over 60 bucks it's a no brainer. Get it. April 30, 2014
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