Bonanza Helmet - Flat Black

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5 Star Rating
(23) See Reviews


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Overview: The Bonanza's interior features a custom-shaped EPS safety shell and a hand-stitched removable liner with moisture wicking brushed Lycra panels and open-cell foam padding for breathability and comfort.

• Injection-molded ABS outer shell with hand-painted finish
• Expanded polystyrene inner shell
• Hand-sewn removable brushed Lycra liner with contrasting diamond-stitched quilted open-cell foam padding
• Meets DOT safety standards
• Rugged plated steel D-ring neck strap with adjustment strap end retainer
• XS through XXL sizes

Sizing Chart Product Video DIY Tips & Tricks Related Items



5 Star Rating

05/30/2018 10:50am

Best helmet that I’ve ever owned hands down. I’ve had mine about 4 years now and going strong. It is light and the most comfortable helmet that I’ve worn. I have the mirrored bubble shield with the flat black helmet and the shield is fantastic. Made a ride a couple of years back down to FL with a bunch of friends who joked about mynshield but after a long days ride, they were all sunburnt and I had no burns so the joke was on them. Highly recommend the helmet. It will be the best money that you’ve ever spent on a helmet and the comfort is it of this world.


5 Star Rating

02/13/2018 06:54pm

Perfect fit, great quality, but took a point off because I still look like the Great Gazoo.


Todd Schulz
5 Star Rating

07/30/2017 01:46pm

Awesome helmet! They fit true to the measurement chart, crazy comfy, and unlike my half helmet the wind doesn't lift it off my head. First time out, had a guy follow me for like 3 miles and ask me where I got it. I paired it up with the gold mirror bubble shield, matched one up for my wife too!


5 Star Rating

06/20/2017 03:22pm

Girls will give you their phone number if you buy this helmet.


Daniel Jimenez Costa Rica
5 Star Rating

05/05/2017 12:50pm

It was love at first sight! I received my Bonanza helmet and I just love it, it's comfortable, elegant, safe and fantastic for the photographs when you combine it with any Bubble Shield! At first I had many doubts about what would be the perfect size for me, but the guide of choice helped me a lot, you're going to be safe if you use it! The Bubble Shield Chrome Mirror is amazing, even to handle at night is perfect! Thanks for this incredible product...


Bryce Job
5 Star Rating

07/06/2016 08:40pm

The Biltwell Bonanza is the most comfortable helmet I've ever owned. I paired it with the chrome mirror bubble shield and it sure looks mean on my Triumph Speedmaster!


Jeff Turley
5 Star Rating

05/24/2016 09:13pm

Very comfy. When paired with a mirror bubble shield you can go anywhere. Getting a green gringo to add to my collection. Keep up the good shit


5 Star Rating

04/15/2016 09:58am

Absolutely love this helmet!! I ordered the bonaza helmet yesterday, and it showed up today. Un-believable! I'm so happy with it, it fits perfect, and weighs less than a bulimic cheerleader! I went with a large, in the bell 500 I'm a medium. I only got to get up to around 65mph and didn't feel it lift. With the bell, around 60 I felt like the helmet was trying to run away from my head. I can't wait to order more from biltwell.


5 Star Rating

10/02/2015 02:31pm

First ride with it today. Extremely comfortable. Great helmet!!


Rhys Taylor
5 Star Rating

06/23/2015 05:11pm

Arrived all the way to Australia 6 days after I ordered it :) When I picked up the box couldn't believe there was a helmet in it... so light. Thanks for the speedy service!


Paul Marino
5 Star Rating

05/22/2015 05:24pm

Road my sporty from Delaware to Myrtle Beach for bike week. Had this helmet on for 9 hours. It was comfortable and lighter than my Bell Rogue and Fly .357. I wore the bubble shield and it worked great. Oh and thanks for all the stickers.


5 Star Rating

05/02/2015 02:51pm

On a more serious note I crashed in this helmet going about 60mph and smacked my head pretty hard; leaving a huge gash in it. If it weren't for this helmet I probably would've had some serious damage or could've died. It's a great helmet. Great fit and comfortable, plus it'll save your life.


5 Star Rating

04/21/2015 09:40am

I heard about this helmet on HD Forums last year. This year, I found a local dealer and tried one on. I bought it right then and there. I've worn it for over 500 miles and I can say that it's a great helmet. Very comfortable, light and I love the no frills basic look to it.


5 Star Rating

12/23/2014 05:11am

This helmet is ridiculously comfortable. Best 3/4 I've ever had


5 Star Rating

12/15/2014 08:47am

Far superior to other 3/4 helmets on the market. The quality of the Bonanza is unreal. The padding is incredibly plush quilting that is comfortable and quiet. I can't wear the Bell Custom 500 because it creates a pressure point on my forehead but this thing fits like a glove. Sits low on your forehead which reduces helmet rise at speed. I'm loving this helmet. Buy one.


5 Star Rating

12/06/2014 09:15am

great Helmet!!! The best online


5 Star Rating

09/05/2013 10:31am

Product quality is great but unfortunately the old Hustler fits me much better than the Bonanza.


5 Star Rating

07/22/2013 09:37am

The product is better than expected. It not only looks awesome but its really comfortable. Erik and the team at Biltwell helped me out with some shipping and sizing issues and made sure I got the right helmet.

Thanks Erik and the rest of the Biltwell Team!


5 Star Rating

07/08/2013 03:08pm

This helmet fit perfect and was the best replacement for my old Hustler. Always have had a great experience with Biltwell products


5 Star Rating

06/10/2013 03:15am

Reminds me of my old MIL-issue flight helmet, only much more comfortable. Perfect for my vintage bike and all-day wear.


JD Spill
5 Star Rating

05/31/2013 05:55pm

Used the size chart and the fit is spot on. Cool retro look and comfy.


5 Star Rating

05/23/2013 08:38am

The DOT-approved Bonanza version looks a little bit bigger than the novelty version. However, when I tried both of them Bonanza is much more comfortable like it says. Also it gives more safety. I love it.


James OToole
5 Star Rating

04/04/2013 02:44pm

As far as the helmet is concerned, it's the most comfortable open face helmet I've ever owned, and the quality is top notch.

As far as the customer service is concerned, it was probably the best online customer service experience I've ever had. Thanks to Erik for going the extra mile to help me out!