
Gas Caps
The ultimate accessory gives your bike the "WOW" factor!
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You're going to love the look of our 50's style mechanical gas/oil caps. These classic, hot rod-style caps have a unique locking mechanism that feature a lid and arm/link with controlled stopping points to avoid contact with painted or polished surfaces. This gives you keyless access and it allows you to fill bigger tanks.
These patent-pending caps feature billet aluminum and stainless steel construction and O-ring seals and are available in aluminum, chrome, black anodized or custom finishes. The caps will mount to any flat surface gas or oil tank and our plug in or screw in adaptors mean you can have the perfect look for your style - you can even mix and match.
Here's why you must have a 50's Boy Gas Cap!

Video: Customize with 50's Boy Gas Caps (wmv)
Brochure: Gas Caps (pdf)
How To: Gas Caps Installation Guide (pdf)
Press Review: American Bagger (pdf)
Gas Caps
Give your bike the ultimate accessory.
50's Boy Gas Cap is available in five finishes with three different styles of adaptors to fit Harley-Davidson and Suzuki Hayabusa bikes.
Click to enlarge images
| Finishes | |||||
| Standard | Chrome | Black Anodized |
Copper | Brass | |
| Adaptors | |||||
| Threaded | Push-in | Bung |
| Select the gas caps that fit your motorcycle: | |
| Harley-Davidson | |
| Suzuki Hayabusa | |
| If you do not see your motorcycle in this list, ask 50's Boy Advisor. | |
Video: Customize with 50’s Boy Gas Caps (wmv)
Brochure: Gas Caps (pdf)
How To: Gas Caps Installation Guide (pdf)
Press Review: American Bagger (pdf)
Gas Caps
Mounts to any flat surface tank.
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50's Boy Gas Caps will mount to any flat surface gas or oil tank using our matching adaptors. Screw-in and plug-in gas cap adaptors are also available. Or take your gas caps to an authorized 50's Boy Dealer near you for quick and easy installation. See Gas Cap Installation Guide for full instructions. Love your ride!
Video: Customize with 50's Boy Gas Caps (wmv)
Brochure: Gas Caps (pdf)
How To: Gas Caps Installation Guide (pdf)
Press Review: American Bagger (pdf)
Gas Caps
The accessory everyone is talking about.
The press and the bike crowd are raving about the ultimate accessory - 50's Boy hot rod-style gas cap. Here's what they say:
American Bagger on The 50's Boy gas cap:
"It's the cat's meow of gas caps."
(November 2007)
...The stock dash has a domed gas cap cover, which requires a key to open. The 50's Boy gas cap eliminates the key requirement and looks like a million dollars...read more (PDF).
All I can say is WOW about 50's Boy...It all started with American Bagger Magazine and the ad for the new 50's Boy gas cap. I knew I had to have it. It's happened to all true hot rodders, you see something and you know you just gotta have one.
So, I placed an order over the internet for the cap and adapter. Very smooth, quick confirmation over a secure site. Within a few hours I received a call from 50's Boy to tell me that I had ordered the wrong cap and THEY wanted to make sure I got the correct one. I agreed with the very friendly lady that I indeed wanted the correct part.
Upon receiving the order (two days) I wanted to get the absolutely beautiful cap on the bike ASAP. Well, it did not fit. I immediately called 50's boy and spoke to Fred. My application needed a special piece made and Fred called me many times to make sure he had the correct dimensions. Two days later (on a weekend, no less) I had a custom machined adapter (this is from one coast to the other) in hand. The piece corrected any issues.
How many vendors will make a custom piece, send it to you Next Day Air, weekend delivery all within a time frame of 3 days. NOT MANY, I have never seen better customer relations with any other supplier, and I have been in the Hot Rod/Bike Custom industry for 35 years! Most will tell you that you need to make it fit, Not 50's Boy...They stand behind the product they manufacture and sell. I could have just said "BEST DAMN CUSTOMER SERVICE, ANYWHERE, PERIOD...and Killer, Beautiful products."
Robin "Hotrod Hoodlum" Brubaker
North Manchester, Indiana
Video: Customize with 50's Boy Gas Caps (wmv)
Brochure: Gas Caps (pdf)
How To: Gas Caps Installation Guide (pdf)
Press Review: American Bagger (pdf)