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Throttle Addiction has the best selection of custom motorcycle gas tanks for your chopper or bobber, Sportster of vintage Harley Davidson

Choosing the Correct Custom Gas Tank For Your Motorcycle

Custom motorcycle gas tanks come in a variety of configurations.  There are the universal fit gas tanks, which traditionally have 2 "D tabs" for mounting.  These tabs are welded to the tank on the front and back, and usually require you to drill the tabs prior to mounting.  This style of universal gas tanks are designed to fit on or over a single round backbone that is usually present on custom chopper frames, or earlier style Harley Davidson Frames, Triumph Frames, or XS 650 Frames.  When Mounting, the installer should weld threaded bungs into the frame on the motorcycles to ensure the integrity of the frame is maintained. Universal fit gas tanks allow the installer to choose where on the frame they would like to mount the tank. Throttle Addiction stocks a variety of frisco Sportster tanks, as well as many configurations of Wassell style gas tanks.

Bolt On Custom Motorcycle Gas Tanks

The other style of custom gas tanks feature custom designs and shapes, but have mounting provisions on them to fit specific stock motorcycle frame applications.  This would be called a "bolt on" part.  No fabrication is required to mount this style of tank.  We carry custom tanks for Harley Sportster frames, as well as Softail and Shovelhead frames. 

Stock Replacement Motorcycle Gas Tanks

Lastly, Throttle Addiction carries stock replacement fuel tanks for many Harley applications.  These would include stock Sportster gas tanks, Panhead gas tanks, Shovelhead gas tanks, and Knucklehead Gas tanks.

Don't Forget Your Gas Tank Accessories

After you've selected your new custom gas tank, be sure to pair it with a new petcock and gas cap.  Throttle Addiction carries the appropriate motorcycle petcocks and gas caps to fit all of the gas tanks that we sell.  Over time, rubber gaskets on these items wear out, so be sure to replace yours when purchasing a new tank.  Most custom gas tanks seem to utilize the small and compact 1/4" NPT petcock, and the Harley style Cam gas cap.  We stock a variety of styles for both of these parts.  

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  • Throttle Addiction Cam Style Harley Davidson Gas Cap - Vented Throttle Addiction Cam Style Harley Davidson Gas Cap - Vented Throttle Addiction Cam Style Harley Davidson Gas Cap - Vented

    Throttle Addiction

    Cam Style Harley Davidson Gas Cap - Vented

    This vented cam or bayonet-style gas cap fits most custom gas tanks and Harley Davidson gas tanks from 1936-1982.  On stock Harley motorcycles running two separate fuel tanks, this is the right side gas cap. Features: Chrome steel with rubber...

    $14.99
  • Throttle Addiction Narrow Frisco Sportster Gas Tank Throttle Addiction Narrow Frisco Sportster Gas Tank Throttle Addiction Narrow Frisco Sportster Gas Tank Throttle Addiction Narrow Frisco Sportster Gas Tank Throttle Addiction Narrow Frisco Sportster Gas Tank

    Throttle Addiction

    Narrow Frisco Sportster Gas Tank

    For years, chopper heads have been cutting up and narrowing the classic Harley Sportster tank.  Lowering the tunnel to give it that "Frisco" style was utilized to squeeze every last drop of fuel out.  We've removed all that effort of cutting...

    $189.99
  • Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Whiskey Reserve Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Whiskey Reserve

    Throttle Addiction

    Fuel Reserve Bottle - 1.5 Liter - "Whiskey Reserve"

    Peace of mind and some more miles is what our anodized aluminum 1.5 liter fuel bottle gets you. Not only can it dish out confidence, it can make a statement and bring a smile to your face.   Dimensions:  12" tall - from top of cap to...

    $24.99
  • Throttle Addiction 1/4 NPT Petcock - 90 Degree - Black Handle Throttle Addiction 1/4 NPT Petcock - 90 Degree - Black Handle

    Throttle Addiction

    1/4" NPT Petcock - 90 Degree - Black Handle

    1/4" NPT petcock will fit many custom motorcycle gas tanks or other power sports applications.  Male 1/4" national pipe threads with 90 degree outlet barb to fit 1/4" fuel line. 100% made in the USA. Feature: Steel construction with zinc...

    $17.99
  • Throttle Addiction Inline Motorcycle Fuel Filter

    Throttle Addiction

    Inline Motorcycle Fuel Filter

    These small, compact inline fuel filters work great for ridding your gas of any debris, rust, or dirt prior to hitting the carb.  Their small design and clear plastic construction won't attract much attention to them, which is just how we want it...

    $3.99
  • Throttle Addiction Wassell Peanut Gas Tank - Mid Tunnel Throttle Addiction Wassell Peanut Gas Tank - Mid Tunnel Throttle Addiction Wassell Peanut Gas Tank - Mid Tunnel Throttle Addiction Wassell Peanut Gas Tank - Mid Tunnel Throttle Addiction Wassell Peanut Gas Tank - Mid Tunnel

    Throttle Addiction

    Wassell Peanut Gas Tank - Mid Tunnel

    The mid-tunnel Wassell style peanut tank is the happy medium between our Frisco Wassell gas tank and our Deep Tunnel Wassell gas tank.  It’s like the Goldilocks of gas tanks:  not too high, not too deep, it sits just right.  This...

    $164.99
  • Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Black Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Black

    Throttle Addiction

    Fuel Reserve Bottle - 1.5 Liter - Black

    Peace of mind and some more miles is what our anodized aluminum 1.5 liter fuel bottle gets you. This one is as black as it gets and the only thing blasted into it is safety crap. You're welcome, Darth.   Dimensions:  12" tall - from top of...

    $24.99
  • Throttle Addiction Frisco Sportster Peanut Gas Tank Throttle Addiction Frisco Sportster Peanut Gas Tank Throttle Addiction Frisco Sportster Peanut Gas Tank Throttle Addiction Frisco Sportster Peanut Gas Tank Throttle Addiction Frisco Sportster Peanut Gas Tank

    Throttle Addiction

    Frisco Sportster Peanut Gas Tank

    This classic Sportster gas tank has been set up with a low "Frisco" tunnel to maximize fuel capacity and sit high and stylish on the backbone. Commonly refered to as a Peanut Tank,  It will give your chopper or bobber a custom look but still carry...

    $149.99
  • Throttle Addiction Narrow Wassell Gas Tank Throttle Addiction Narrow Wassell Gas Tank Throttle Addiction Narrow Wassell Gas Tank Throttle Addiction Narrow Wassell Gas Tank Throttle Addiction Narrow Wassell Gas Tank

    Throttle Addiction

    Narrow Wassell Gas Tank

    This unique gas tank starts with the same shells we use for our other Wassell inspired gas tanks, then we narrowed it 1” before the halves were welded together.  It’s a unique tank that is perfect for Triumphs, XS 650s or even Sportsters...

    $164.99
  • Throttle Addiction Frisco Wassell Peanut Style Gas Tank Throttle Addiction Frisco Wassell Peanut Style Gas Tank Throttle Addiction Frisco Wassell Peanut Style Gas Tank Throttle Addiction Frisco Wassell Peanut Style Gas Tank Throttle Addiction Frisco Wassell Peanut Style Gas Tank

    Throttle Addiction

    Frisco Wassell Peanut Style Gas Tank

    This tank has a classic Wassell shape with a Frisco tunnel.  It sits high and level with your frame backbone.  Features: Undrilled mounting tabs Bungs for two 1/4" NPT petcocks Measurements: 2.3 gal capacity 14.5" long x 9" wide x...

    $189.99
  • Throttle Addiction Stock Sportster Gas Tank Shell Throttle Addiction Stock Sportster Gas Tank Shell Throttle Addiction Stock Sportster Gas Tank Shell

    Throttle Addiction

    Stock Sportster Gas Tank Shell

    This Sportster gas tank shell is a great start to a custom gas tank fabrication project. This is the same size as the stock Sportster shells of the '90s and early 2000 models. Don’t waste your time cutting up an old Harley Sportster tank. ...

    $79.99
  • Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Blue Ribbon Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Blue Ribbon Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Blue Ribbon

    Throttle Addiction

    Fuel Reserve Bottle - 1.5 Liter - "Blue Ribbon"

    Peace of mind and some more miles is what our anodized aluminum 1.5 liter fuel bottle gets you. Not only can it dish out confidence, it can make a statement and bring a smile to your face.   Dimensions:  12" tall - from top of cap to...

    $24.99
  • Throttle Addiction Custom Frisco Sporty Gas Tank Throttle Addiction Custom Frisco Sporty Gas Tank Throttle Addiction Custom Frisco Sporty Gas Tank Throttle Addiction Custom Frisco Sporty Gas Tank Throttle Addiction Custom Frisco Sporty Gas Tank

    Throttle Addiction

    Custom Frisco Sporty Gas Tank

    This Frisco Sportster gas tank has the classic Sportster shape with the custom features you want.  It has a Frisco bottom low tunnel mount paired with an offset gas cap and rear petcock bung for max fuel capacity.  We also took the time to...

    $189.99
  • Throttle Addiction 1/4 Clear Fuel Line

    Throttle Addiction

    1/4" Clear Fuel Line

    High quality 1/4” clear polyurethane fuel line will look great on your chopper.  Designed for modern ethanol gas to resist fading or break down.  Packaged in pre-cut 3 ft lengths. Measurements: 3’ long ¼” ID 3/8”...

    $6.99
  • Throttle Addiction Throttle Addiction Fuel Reserve Bottle Carrier Throttle Addiction Throttle Addiction Fuel Reserve Bottle Carrier Throttle Addiction Throttle Addiction Fuel Reserve Bottle Carrier Throttle Addiction Throttle Addiction Fuel Reserve Bottle Carrier Throttle Addiction Throttle Addiction Fuel Reserve Bottle Carrier

    Throttle Addiction

    Throttle Addiction Fuel Reserve Bottle Carrier

    You were smart enough to get your hands on one of our Fuel Reserve Bottles, but you don't have a saddle bag (or room in it) to put your extra fuel?  We now offer a way for you to haul that precious go-juice without having to put it in a bag...

    $19.99
  • Throttle Addiction 1/4 NPT Petcock - Straight - 180 Degree - Black Handle Throttle Addiction 1/4 NPT Petcock - Straight - 180 Degree - Black Handle

    Throttle Addiction

    1/4" NPT Petcock - Straight - 180 Degree - Black Handle

    1/4" NPT petcock will fit many custom motorcycle gas tanks, or other power sports applications.  Male 1/4" national pipe threads with straight outlet barb to fit 1/4" fuel line. 100% made in the USA. Feature: Steel construction with zinc plating...

    $17.99
  • Throttle Addiction Frisco Flat Tunnel Tank Base Throttle Addiction Frisco Flat Tunnel Tank Base

    Throttle Addiction

    Frisco Flat Tunnel Tank Base

    This flat tunnel base makes Frisco mounting any tank a snap!  Cut to suit and weld to your custom tank or one of our sporty tank shells. Measurements: 17 3/4" x 11 3/8" 14 gauge mild steel Tunnel is 2" wide x 1" deep

    $37.99
  • Throttle Addiction Narrow Sportster Tank Shell Throttle Addiction Narrow Sportster Tank Shell

    Throttle Addiction

    Narrow Sportster Tank Shell

    This single piece stamped shell is the same one used to construct our narrow sporty gas tank.  If you are looking to put your own touch on a narrow Sportster style tank, this is a great start that is certain to save you time. Features: Single...

    $89.99
  • Throttle Addiction Wassell Peanut Motorcycle Gas Tank - Deep Tunnel Throttle Addiction Wassell Peanut Motorcycle Gas Tank - Deep Tunnel Throttle Addiction Wassell Peanut Motorcycle Gas Tank - Deep Tunnel Throttle Addiction Wassell Peanut Motorcycle Gas Tank - Deep Tunnel Throttle Addiction Wassell Peanut Motorcycle Gas Tank - Deep Tunnel

    Throttle Addiction

    Wassell Peanut Motorcycle Gas Tank - Deep Tunnel

    This reproduction of the original Wassell peanut tank sits deep over your frame’s backbone, creating a low profile look.  It uses a vented Harley cam style cap.  This tank is a great choice for your vintage inspired chopper or bobber...

    $164.99
  • Universal Cycle Axed Chopper Gas Tank - Single Cap Universal Cycle Axed Chopper Gas Tank - Single Cap Universal Cycle Axed Chopper Gas Tank - Single Cap Universal Cycle Axed Chopper Gas Tank - Single Cap Universal Cycle Axed Chopper Gas Tank - Single Cap

    Universal Cycle

    Axed Chopper Gas Tank - Single Cap

    The classic axed chopper tank is also referred to as a wasp or alien gas tank.  It gets its name from the process through which its built:  a set of split fat bob tanks are "axed" or cut up and then welded together to create one tank.  We...

    $139.99
  • Throttle Addiction Narrow Axed Motorcycle Gas Tank Throttle Addiction Narrow Axed Motorcycle Gas Tank Throttle Addiction Narrow Axed Motorcycle Gas Tank Throttle Addiction Narrow Axed Motorcycle Gas Tank Throttle Addiction Narrow Axed Motorcycle Gas Tank

    Throttle Addiction

    Narrow Axed Motorcycle Gas Tank

    With this tank, we narrowed up the axed gas tank just a little bit.  It’s a subtle difference but provides a nice skinny look.  This tank has a low tunnel, petcock bung on the left side and Harley Davidson cam style filler offset to the...

    $164.99
  • Universal Cycle Black 1/4 Neoprene Fuel Line Universal Cycle Black 1/4 Neoprene Fuel Line

    Universal Cycle

    Black 1/4" Neoprene Fuel Line

    Black neoprene motorcycle fuel line is reinforced with a high strength rayon mesh. Resists fuel, oil and grease Maximum PSI of 200 with a burst pressure of 450 PSI Sold in 3' lengths, 10' lengths or 25' lengths

    $3.99 - $17.99
  • Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Filler-Up Low Life Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Filler-Up Low Life

    Throttle Addiction

    Fuel Reserve Bottle - 1.5 Liter - "Filler-Up Low Life"

    Peace of mind and some more miles is what our anodized aluminum 1.5 liter fuel bottle gets you. Not only can it dish out confidence, it can make a statement and bring a smile to your face.   Dimensions:  12" tall - from top of cap to...

    $24.99
  • Throttle Addiction Mini Sportster Gas Tank Throttle Addiction Mini Sportster Gas Tank Throttle Addiction Mini Sportster Gas Tank Throttle Addiction Mini Sportster Gas Tank Throttle Addiction Mini Sportster Gas Tank

    Throttle Addiction

    Mini Sportster Gas Tank

    If you want small and compact, this is your gas tank.  It is the smallest, most stylish gas tank on the market! Features: Single 1/4" NPT petcock bung on left side of tank Undrilled mounting tabs Single piece stamped top shell Single piece...

    $164.99
  • Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Fuel Lite Throttle Addiction Fuel Reserve Bottle - 1.5 Liter - Fuel Lite

    Throttle Addiction

    Fuel Reserve Bottle - 1.5 Liter - "Fuel Lite"

    Peace of mind and some more miles is what our anodized aluminum 1.5 liter fuel bottle gets you. Not only can it dish out confidence, it can make a statement and bring a smile to your face.   Dimensions:  12" tall - from top of cap to base 3.5"...

    $24.99
  • Leather Washers - 10 pack - 1 with 5/16 Center Leather Washers - 10 pack - 1 with 5/16 Center

    Leather Washers - 10 pack - 1" with 5/16" Center

    Grab a pack of these leather washers for your next custom install. Save yourself from scratches when putting on your freshly painted tins or just use them to give your bike a special finished look. 1" diameter with a 5/16" center opening.  Made with...

    $5.99
  • Throttle Addiction Axed Chopper Gas Tank - Dual Cap Throttle Addiction Axed Chopper Gas Tank - Dual Cap Throttle Addiction Axed Chopper Gas Tank - Dual Cap Throttle Addiction Axed Chopper Gas Tank - Dual Cap Throttle Addiction Axed Chopper Gas Tank - Dual Cap

    Throttle Addiction

    Axed Chopper Gas Tank - Dual Cap

    The classic axed chopper tank is also referred to as a wasp or alien gas tank.  It gets its name from the process through which its built:  A set of split fat bob tanks are "axed" or cut up and then welded together to create one tank.  We...

    $144.99
  • Universal Cycle 1/4 NPT Petcock - 90 Degree - Chrome Universal Cycle 1/4 NPT Petcock - 90 Degree - Chrome Universal Cycle 1/4 NPT Petcock - 90 Degree - Chrome

    Universal Cycle

    1/4 NPT Petcock - 90 Degree - Chrome

    1/4" NTP chrome petcock for custom gas tanks with a 3/8" NPT bung.  Outlet is angled 90 degrees and fits 1/4" ID fuel line.   Features: On, off and reserve Chrome plating Filter screen

    $24.99
  • Throttle Addiction Pinched Sportster Tank Shell Throttle Addiction Pinched Sportster Tank Shell Throttle Addiction Pinched Sportster Tank Shell Throttle Addiction Pinched Sportster Tank Shell Throttle Addiction Pinched Sportster Tank Shell

    Throttle Addiction

    Pinched Sportster Tank Shell

    This single piece stamped Sportster gas tank shell is the same one used to construct our Custom Frisco Sporty gas tank.  If you are looking to weld up your own custom Sportster style tank, this is a great start that is certain to save you time...

    $79.99
  • Throttle Addiction Wassell Peanut Gas Tank Shell Throttle Addiction Wassell Peanut Gas Tank Shell Throttle Addiction Wassell Peanut Gas Tank Shell Throttle Addiction Wassell Peanut Gas Tank Shell Throttle Addiction Wassell Peanut Gas Tank Shell

    Throttle Addiction

    Wassell Peanut Gas Tank Shell

    These pre-fabricated Wassell style tank shells are a great start to a custom gas tank.  Since the hard part has already been completed, you'll have the rest finished up in no time.  You'll need to drill a few holes for your different bungs and...

    $89.99
  • Throttle Addiction Narrow Mustang Gas Tank Throttle Addiction Narrow Mustang Gas Tank Throttle Addiction Narrow Mustang Gas Tank Throttle Addiction Narrow Mustang Gas Tank Throttle Addiction Narrow Mustang Gas Tank

    Throttle Addiction

    Narrow Mustang Gas Tank

    The Narrow Mustang tank is about as chopper as it gets. This is the tank they used on the Captain America bike for crying out loud!   Features: Universal mounting tabs 2.2 gallon capacity 9.5" wide x 16.5" Long 6.5" Tall 18.5" end of tab to...

    $145.99
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