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Shoei RF-1100 Diabolic Feud Helmet
  • Black/Silver
  • Black/Silver
  • Black/Silver
  • White/Silver
  • White/Silver

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Video Reviews (3)

Shoei RF-1100 Diabolic Feud Helmet Videos

Shoei RF-1100 Diabolic Feud Helmet

SHOEI is proud to introduce the all-new RF-1100 Helmet, which is built on the strongest pedigree in the motorcycle helmet business. The Shoei RF-1000 Helmet has enjoyed great success since its 2003 inception, but that didn’t stop SHOEI’s world-class development team from throwing out the molds to build a brand-new helmet from scratch. Combining  dealer and customer requests with advanced technology, modern testing practices, and fifty years of helmet-building experience, SHOEI delivers the finest sport-touring helmet that money can buy. The all-new, groundbreaking Shoei RF-1100 - where aggressive styling meets SHOEI’s unrivaled attention to detail, and the evolution of perfection is once again met.

AIM+ Shell Construction:

  • Aerodynamic properties are maximized through extensive wind tunnel and professional riders’ feedback
  • High performance fiber materials are combined with extremely elastic organic fibers to create shell structure that is ultra lightweight, rigid and resilient
  • 5 Shell Sizes and six EPS liner configurations present increased fit options that comfortably fit most head sizes
  • A third generation Tail Fin, integrated into the bottom rear beading in combination with the Shell-Integrated Spoiler, allows smooth airflow that reduces drag and lift

CW-1 Face Shield

  • The CW-1, three-dimensionally curved shield is both wider and taller than the CX-1V it replaces 

Q.R.S.A. (Quick Release Self-Adjusting) Base Plate System

  • Q.R.S.A. base plate allows for tool-less face shield removal and installation. 
  • Every time the shield is lowered, the spring-loaded base plate pulls the shield back to contact the window beading evenly, ensuring a wind and waterproof seal between shield and helmet

Variable Ventilation System

  • Upper Air Intake Vent is positioned to maximize air volume into the helmet interior
  • Top outlet vent is separate from the shell
  • Integrated Spoiler, allowing it to be positioned for optimum flow-through ventilation
  • Four rear outlet vents allow for adjustment of airflow based on riding position
  • Enlarged lower air intake/defroster vent reduces shield fogging and increases ventilation
  • The rear/neck outlets allow for effective air exhaust
  • Breath guard and chin curtain included 

Interior System

  • The entire interior lining (cheek pads, crown liner and chin strap covers) is easily removed to allow cleaning
  • Each component of the inner liner is ergonomically designed to offer the ultimate in safety, fit and comfort
  • Eyeglass compatible

Tech Specs

  • 5 shell sizes
  • Weight: 3.54 Pounds / 1604grams (based on size medium / solid color)
  • DOT and Snell M2010 approved

Note: Due to manufacturer restrictions, Shoei products can only be shipped to addresses within the United States

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Shoei RF-1100 Diabolic Feud Helmet 4.7 5 22 22
This product is excellent! This is another quality helmet from Shoei. Everything is just as they described it. I highly recommend it! April 21, 2014
a great value for the money This is my third helmet in three years. The first 2 were very uncomfortable. This is extremely comfortable so don't make the mistake in buying a cheap helmet like i did the first 2 times. A helmet is very well the most important purchase for riding a bike. Shoei is the best in helmets and revzilla is the best company to purchase all motorcycle items for me. April 7, 2014
Great so far Got this helmet about a month ago, so only had the bike out once. The medium fit a little snug but the chek pads break in some so it fits great now. The one ride it was only in the 60's so couldn't see how great the air flow was. I searched for a while before getting this and the RF1100 is a great helmet you can tell from all the reviews. I have dark smoke shield on it and with the white helmet it looks sharp. February 10, 2014
Love this helmet. I had the enigma shoei rf 1100. This was an ok graphic but not as cool as the Diabolic imo. I had a lowside crash where myself and my bike ended up in a ditch facing the wrong way about 4 months ago unfortunately. I had some bruised ribs and a puncture on my right arm do to a branch hitting the stretch panel on my jacket. My head and neck where fine after. The helmet did its job perfectly. The face shield stayed on even though it was completly scratched. The upper right air vent cover was ripped off. I replaced the face shield with a a spare I had and you can hardly tell the thing was in a reck. I know once you are in a crash you are exposed to retire your helmet that's why I bought this new one. Hope my misfortune helps you buy a great helmet. February 10, 2014
Great Helmet Fits a bit snug, I have the chip munk cheeks look. I am quite sure this will break in better as I get to ride with it more and more. I love this helmet besides this. The finish is excellent, and the workmanship appears to be great. The noise level is very good. The ventilation is noticeable, will come in handy during the summer. January 20, 2014
This product has the style and protection i was looking for This is the second helmet i've purchased and I have to say its been holding up pretty good. My first helmet's shield has been coming loose and has been letting air in the face shield. This helmet has an awesome shield and has a locking switch to lock it shut. Also, its surprisingly comfortable you can't beat the style. It just looks really good when you're wearing it. January 13, 2014
Black Friday FTW!!! I've had my eye on this Shoei for a while now, since it was up for pre-order. We all know what the rf-1100 is a great lid and the series is now being replaced for the 1200 series. With that said, I bought this in the white version and could not be more pleased with it. The paint job is wicked, so detailed that Im feeling the pain already of debris hitting it and scuffing it up. But, I ride and that is to happen. All I can say is pick this up while Zilla still has your size. For 359, you cant go wrong! Thanks Revzilla for slashing the price down a bit! December 4, 2013
Very good helmet! This is my first helmet and I am really satisfied! It looks amazing, the design is awesome. It is light, quiet, and comfortable. I would totally recommend it! September 2, 2013
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Have a functionality, fit, or otherwise product-specific question about the Shoei RF-1100 Diabolic Feud Helmet? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

Shoei RF-1100 Diabolic Feud Helmet
Already Asked: 8 Questions, 27 Answers
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RevZilla Store asked: Why did you choose this?
Paul M: my friends i ride with have this helmet and love it. Feb 24, 2014
Roger B: I crashed in my old rf1100 and it saves my bacon. I love the detail on the graphic. I would have bought a rf 1200 but I think they did a cheap job on the graphics this year. Jan 18, 2014
Richard N: Needed a new helmet and for the price and looks - Can't beat the price. Dec 27, 2013
Vernon B: Looks, cost, and safety Dec 19, 2013
CHARLENE B: It's a gift for my husband...not only a great brand, but the graphics are awesome! Dec 16, 2013
Matthew B: Great deal, and Shoei fits best for me. Nov 24, 2013
Kristin W: awesome graphics Nov 23, 2013
jeffrey w: your mom wanted it Nov 19, 2013

Shoei Helmets

Size Hat Size Measurement (in)
2XS 6 3/8 - 6 1/2 20 1/8 - 20 1/2
XS 6 5/8 - 6 3/4 20 7/8 - 21 1/4
SM 6 7/8 - 7 21 5/8 - 22
MD 7 1/8 - 7 1/4 22 1/2 - 22 7/8
LG 7 3/8 - 7 1/2 23 1/4 - 23 5/8
XL 7 5/8 - 7 3/4 24 - 24 3/8
2XL 7 7/8 - 8 24 3/4 - 25 1/4
3XL 8 1/8 - 8 1/4 25 5/8 - 26

RF-1100 / X-12 Shell Size Breakdown

Helmet Size Shell EPS Liner
XS (RF1100)
XS (X-12) SM

X-12 Cheekpad Sizing

Size (mm) Defaults
31 optional
33 optional
35 XS - 2XL
37 optional
39 optional
41 optional

RF1200 Cheekpad Sizing

Size (mm) Defaults
31 2XL
35 SM-XL
39 XS
43 optional

RF1100 Cheekpad Sizing

Size (mm) Defaults
31 3XL
33 optional
35 XS - 2XL
37 optional
39 2XS
41 optional

GT-Air Cheekpad Sizing

Size (mm) Defaults
31 2XL
35 SM-XL
39 XS

Qwest Cheekpad Sizing

Size (mm) Defaults
31 optional
33 optional
35 XS - 2XL
37 optional
39 2XS
41 optional

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

Click here to see the full Shoei Helmets Size Chart
Product Style RevZilla SKU ID Manufacturer Product # Availability
Black/Silver / XS 850390 0113-2005-03 Out of Stock
Black/Silver / SM 850391 0113-2005-04 Out of Stock
Black/Silver / MD 850392 0113-2005-05 Out of Stock
Black/Silver / LG 850393 0113-2005-06 Out of Stock
Black/Silver / XL 850394 0113-2005-07 Out of Stock
Black/Silver / 2XL 850395 0113-2005-08 Out of Stock
White/Silver / XS 850396 0113-2006-03 Out of Stock
White/Silver / SM 850397 0113-2006-04 Out of Stock
White/Silver / MD 850398 0113-2006-05 Out of Stock
White/Silver / LG 850399 0113-2006-06 Out of Stock
White/Silver / XL 850400 0113-2006-07 Out of Stock
White/Silver / 2XL 850401 0113-2006-08 Out of Stock