What is the average gas tank size and shape?

Gas tanks come in all shapes and sizes, making it hard to give an average gas tank size. Harley-Davidson motorcycles typically get 40-50 miles per gallon, which is a good reference point for how far you can ride based on the capacity of your gas tank.

Can motorcycle gas tanks be repaired?

To repair a motorcycle gas tank you first need to determine what it is made out of. Leaky steel gas tanks can be repaired by welding or brazing. This necessitates removing the gas tank and completely flushing and purging the old gas and fumes. The heat of welding typically damages the paint in the repair area. If it is dented repairs can be made by using body filler and repainting the gas tank. If the gas tank is fiberglass and is leaking it can be patched and repaired with fiberglass.

Should I replace my gas tank?

Replacing a gas tank is often due to damage, or to change the look and style of a motorcycle. If it is due to damage or age, a replacement gas tank is often the easiest option, as it can simply be bolted in place of the original. If replacing a stock gas tank with a custom one, it may be a bolt-on part, or, it may require some welding or fabrication to make it work. For an example of this check out our Motorcycle Gas Tank Install How-To article.

Do you have to seal a motorcycle gas tank?

It is our opinion that the inside of motorcycle gas tanks do not need to be sealed / lined. If a gas tank has been repaired or modified, it should be pressure tested to check for pinhole leaks along weld seams. If there are any leaks, they should be properly repaired by welding the pinhole. Lining a gas tank can stop flash rust from forming inside the tank, however, if the lining fails and starts coming loose from the gas tank walls, you have to remove the gas tank and totally strip the liner. There are pros and cons to lining a tank, and it is personal preference, but in our experience we do not find it useful. If you would like to line a tank, we recommend Caswell Gas Tank Liner as a superior product.

Motorcycle Gas Tanks

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Top view Frisco mount Sportster Gas Tank by Lowbrow Customs — Lowbrow Customs Frisco Mount Sportster Gas Tank - Standard Width - 2.5 gallon
82 reviews $189.99

Lowbrow Customs Narrow Sporty Frisco Gas Tank 2.5 gallon
38 reviews $219.99

Cycle Standard Wassell Peanut Mid-Tunnel Gas Tank 2.1 gallon
39 reviews $179.99

Lowbrow Customs WX Split Gas Tanks - Bolt-On for 1936 - 1984 Big Twin Harley-Davidsons - 2.25 gallon
67 reviews $384.99

Lowbrow Customs Frisco Mount Sportster Gas Tank - Narrow - 2.1 gallon
55 reviews $199.99

Cycle Standard Stock Style Harley Sportster Gas Tank 1986 - 2003 - Left Side Petcock - 2.2 gallon
66 reviews $164.99

Lowbrow Customs King P-Nut Frisco Shallow Tunnel Gas Tank 2.4 gallon
38 reviews $189.99

Lowbrow Customs Frisco Mount Sportster Gas Tank - Narrow - Bayonet Filler - 2.1 gallon
2 reviews $189.99

Cycle Standard Harley-Davidson Ironhead Sportster 1958 - 1978 Replica Stock Style Gas Tank - 2.4 gallon
49 reviews $149.99

Cycle Standard Wassell Peanut Deep Tunnel Gas Tank 2 gallon
6 reviews $179.99

Cycle Standard Blackbird Legacy Gas Tank for 2007-2022 EFI Harley-Davidson Sportsters - 3.5 gallon
13 reviews $299.99

Lowbrow Customs Reproduction Harley Model 125 / Model 165 / Hummer Gas Tank with Key Switch
2 reviews $239.99

Cycle Standard Stock Style Harley King Sportster Gas Tank 1995 - 2003 - Left Side Petcock - 2.9 gallon
10 reviews $149.99

V-Twin Manufacturing Frisco Mount Sportster Bobber Gas Tank - 2.5 gallon
3 reviews $152.56

Lowbrow Customs Coffin Chopper Gas Tank - 1.4 Gallon - USA Made
$264.95

Cycle Standard Sportster Style Frisco Mount Gas Tank - Narrow - 2.1 gallon
7 reviews $188.99

Lowbrow Customs Banana Gas Tank - Mid Tunnel - 2 Gallon
3 reviews $169.99 $199.99

Cycle Standard Axed Chopper Motorcycle Gas Tank 2.2 gallon
30 reviews $149.99

Lowbrow Customs Frisco Mount Sportster Gas Tank - Super Narrow - 1.6 gallon
31 reviews $199.99

Lowbrow Customs Frisco Mount Banana Gas Tank - Bayonet Filler - Shallow Tunnel
2 reviews $149.99 $199.99

Lowbrow Customs P-Nut Mid-Tunnel Gas Tank 1.8 gallon
46 reviews $169.99

Cycle Standard Stock Style Harley-Davidson Sportster Gas Tank 2004-2006 - 2.2 gallon
$202.02 $215.50

Cycle Standard Laredo Ribbed Gas Tank - Offset Filler
1 review $199.99

Cycle Standard Stock Style Gas Tank 2007-2022 Harley-Davidson Sportster EFI - 2.2 gallon
$196.08 $208.55

Lowbrow Customs Gas Tank Adapter Brackets 1982-2003 Harley Sportsters XL
47 reviews $44.99

Lowbrow Customs Super Banana Gas Tank - Mid Tunnel - 2.6 Gallon
14 reviews $199.99

Cycle Standard Narrow Alien Motorcycle Gas Tank - 2.1 gallon
5 reviews $149.99

Cycle Standard Sportster Style Frisco Mount Gas Tank - Standard Width - 2.5 gallon
1 review $188.99

Wyatt Gatling Emerald Flat Prism Chopper Gas Tank 2.2 gallon
$186.66 $219.60

Cycle Standard Axed Dual Cap Chopper Motorcycle Gas Tank 2.2 gallon
23 reviews $149.99

Cycle Standard Dished Wassell Peanut Frisco Mount Shallow-Tunnel Gas Tank - 2.2 gal
19 reviews $199.99

Cycle Standard Dished Wassell Peanut Mid-Tunnel Gas Tank - 2.0 gal
10 reviews $199.99

Cycle Standard Stock Style Harley King Sportster Gas Tank 1986 - 1994 - Right Side Petcock - 2.9 gallon
4 reviews $159.99

Lowbrow Customs P-Nut Frisco Shallow Tunnel Gas Tank 2 gallon
26 reviews $169.99

Lowbrow Customs Original P-Nut Tank Deep Tunnel Gas Tank 1.8 gallon
58 reviews $169.99

Cycle Standard Narrow Axed Chopper Motorcycle Gas Tank 1.9 gallon
14 reviews $164.99

Cycle Standard Frisco Mount 2007-2022 EFI Sportster Gas Tank - Standard Width - 2.5 gallon
7 reviews $199.99

Drag Specialties Diamond Pattern Gas Tank 2004 - 2006 Sportster XL Models
4 reviews $265.95

Cycle Standard Mustang Gas Tank - Single Filler - 3.3 Gallon
$159.99

Cycle Standard Narrow Ribbed Mustang Gas Tank 2.25 gallon
29 reviews $159.99

Lowbrow Customs Banana Gas Tank - Deep Tunnel - 1.8 gallon
7 reviews $199.99

Lowbrow Customs Frisco Mount Sportster Gas Tank - Standard Width - Bayonet Filler - 2.5 gallon
7 reviews $189.99

Cycle Standard Blackbird Legacy Gas Tank for 1982 - 2003 Harley-Davidson Sportsters - 3.5 gallon
13 reviews $279.99

Cycle Standard Narrow Wassell Peanut Shallow-Tunnel Gas Tank 1.8 gallon
6 reviews $179.99

Lowbrow Customs Ovate Axed Gas Tank - Super Narrow - 1.6 gallon
8 reviews $169.99

Cycle Standard Laredo Ribbed Gas Tank - Center Filler
$219.99

Cycle Standard Mustang Gas Tank - Dual Filler - 3.3 Gallon
$159.99

Wyatt Gatling Replica 3.2 Gallon King Gas Tank 2007-2022 EFI Harley-Davidson Sportster XL 883R 883N 1200N
1 review $218.70 $257.29

Drag Specialties Diamond Pattern Gas Tank 2007-2022 EFI Harley-Davidson Sportster XL Models
1 review $234.95

V-Twin Manufacturing Coffin Chopper Gas Tank 2.2 gallon
15 reviews $215.79

Wyatt Gatling Replica 3.2 Gallon King Gas Tank with Pop Up Cap 2007-2022 EFI Harley-Davidson Sportster XL883R 883N 1200N
$194.20 $228.47

Cycle Standard Wassell Peanut Frisco Gas Tank 2.1 gallon
$164.99

Saddlemen Ronan Tank Cover 2001-2022 Harley-Davidson Sportser
$200.00

V-Twin Manufacturing Replica 3.2 Gallon King Gas Tank 2004-2006 Harley-Davidson Sportster XL
1 review $319.11

Drag Specialties Fat Bob Style Gas Tanks - 1948-84 Harley-Davidson FX/FL - 5 Gallon
$239.95

Drag Specialties Fat Bob Style Gas Tanks - 1984-99 Harley-Davidson FXST/FLST 1985-86 FX/FXWG - 5 Gallon
$259.95

Drag Specialties Rubber-Mount Quickbob Gas Tank 1986-03 Harley-Davidson Sportster
$376.95

Drag Specialties Gas Tank with Aero-Style Gas Cap - 1995-03 Harley-Davidson Sportster - 3.3 Gallon
$261.95

Drag Specialties Fat Bob Style Gas Tanks - 1948-1984 Harley-Davidson FX/FL - 3.5 Gallon
1 review $260.95

V-Twin Manufacturing Harley-Davidson Ironhead Sportster Stock Style Gas Tank OEM #61006-57 1952-78 - 3.5 gallon
5 reviews $257.56

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