Being a Sportster lover, you may know how intimidating it is to run out of fuel when traveling down gravel roads and bumpy tracks. 

Sportsters mostly come with small tanks that carry peanuts of fuel capacity, known as peanuts fuel tanks.

These tanks are no good for longer rides, but when you have to put down some miles, they can help.

That’s why a need to swap those with bigger gas tanks arises. You may be wondering how to swap gas tanks and what features different gas tanks hold.

Worry Not! We are here to guide you in choosing the right gas tank for your Sportster.

Let’s get started.

What Are the Biggest Gas Tanks for Sportsters?

If you are looking for greater fuel capacity, several options are available that boggle the mind. Have a look at some of them:

Fat Bob-Style Tanks

These gas tanks come with 5 gallons of fuel capacity which makes them impressive. Along with increasing the fuel capacity, Fat Bob-Style tanks also add to the look of your bike.

You need to carefully install them, keeping in mind the year or model of your Sportster.

Large Capacity Sportster Fuel Tank by Harley Davidson

This custom tank can hold 4.5 gallons of fuel. It is designed according to the radical styling of the Sportster.

They are great for long rides with friends or country cruising.

Can You Put a Bigger Gas Tank on a Harley Sportster?

Yes, you can swap the usual tank with bigger gas tanks. Most common gas tanks hold 2.2 -2.5 gallons of fuel.

You can swap it with 3.3 versions present in the market in different styles. A V-twin manufacturing replica 3.5-gallon gas tank is one of the good options you can opt for.

How Much Does a Sportster Gas Tank cost?

The biggest tanks for Sportster can cost from $150 to as high as $1000. The cost increases as you opt for greater fuel capacity tanks.

How Many Miles Can a 1200 cc Sportster do?

The Harley XL883L Sportster can hold 3.3 gallons of fuel and easily cover 45 to 55 miles per gallon.

Please look at different Harley models, their fuel capacity, and the mileage they cover. It will help you have a better idea before swapping the tanks.

ModelYearFuel CapacityMileage
Harley-Davidson XL1200C20124.5 gal/ 17 liters 41.7 MPG
Harley-Davidson Trike Freewheeler20156 gal/22 liters39 MPG
Harley Davidson Forty-Eight20102.1 gal/7.8 liters48 MPG
Harley-Davidson FLD Switchback20154.7 gal/17.8 liters43 MPG
Harley-Davidson SuperLow20164.5 gal/17 liters51 MPG

Can You Put a Bigger Gas Tank on a Harley Sportster?

Yes, you can swap with custom tanks with greater fuel capacities. 2.2 and 3.3 gallons are the most commonly available gas tanks for Sportster.

Can you put a bigger gas tank on a Harley 48?

Yes, you can put a bigger gas tank on Harley 48. You can swap with 3.3 gallons, and 4+ gallons can also fit. If you want bigger than 3.3 gals, it may cause mirror issues.

How many gallons does a Sportster tank hold?

Different models can hold up to different fuel capacities. Some can hold peanuts such as 2.2 gals, while others may hold up to 5-6 gal.

How big is a Sportster 883 gas tank?

Harley Davidson iron 883 has a fuel tank of 12.5L. You can swap it with a 4.5-gallon tank to keep on with longer rides.


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