Biker’s Choice One Piece 4.2 Gallon Stretched Tank For Harley Softail 1984-1999

The Ultimate “Slippery” Custom Look: Biker’s Choice One Piece Stretched Tank

Elevate your Softail’s aesthetic to the level of a professional custom build with the Biker’s Choice One Piece 4.2 Gallon Stretched Tank. Designed specifically for the 1984–1999 Harley-Davidson Softail family, this tank is engineered to provide the long, flowing lines typically found on high-end boutique choppers. Unlike inferior tanks that use bolt-on or weld-on extensions, this Biker’s Choice unit features a stretched section that is an integral part of the tank’s one-piece steel construction. This ensures a perfectly smooth transition from the tank to the frame, creating a “slippery” look that streamlines the entire profile of your Evolution-powered machine.

Large Capacity Meets Smooth-Top Styling

This isn’t just a styling upgrade; it’s a functional one. With a generous 4.2-gallon capacity, this tank allows you to stretch your miles just as much as your style. It is designed as a “smooth top” tank, meaning it is intended to be used without a dashboard. This minimalist approach allows the curves of the tank to speak for themselves, making it the perfect centerpiece for a custom project. By eliminating the dash, you create a clean, uncluttered cockpit that highlights the raw power and heritage of your FXST or FLST model. Whether you’re building a stripped-down bobber or a high-end custom cruiser, the added fuel volume ensures you can enjoy the open road with fewer interruptions.

Technical Specifications and Fitment

Crafted from heavy-duty steel, this tank is built to withstand the rigors of the road and the vibrations of the classic Evo engine. It is designed to fit standard flatside mounts, making the physical installation straightforward for those familiar with Softail frames. The tank is equipped with a 22mm external thread fuel valve bung, giving you the flexibility to choose from a variety of high-performance aftermarket petcocks. To maintain the clean, custom aesthetic, this tank is designed to accept screw-in style gas caps (sold separately), which provide a low-profile and secure seal.

• Fitment: 1984–1999 Harley-Davidson Softail (FXST, FLST, Fat Boy, Heritage, etc.).
• Construction: Heavy-duty one-piece steel.
• Cap Style: Accepts 1983-up screw-in style vented gas caps.
• Petcock: 22mm external thread.

Builder’s Guide: Preparation and Customization

The tank arrives in a raw, unpainted steel finish, providing you with a blank canvas for your custom paint scheme. Because this is a high-performance metal component, proper preparation is vital for a show-quality result. We strongly recommend that the tank be pressure tested and internally sealed before any bodywork or paint is applied. Using a high-quality tank liner protects the interior from modern ethanol-blended fuels and prevents potential damage to your custom finish. Additionally, due to the stretched design, custom narrow seats (such as Silhouette-style seats) are required, as stock seats will likely interfere with the extended tail of the tank. Always perform a “dry fit” on your frame before painting to ensure perfect clearance with your handlebars and seating arrangement.

Biker’s Choice One Piece 4.2 Gallon Stretched Tank For Harley Softail

Features:

• Smooth top with no dash
• Made of heavy-gauge steel
• Bolts on to stock tank mounts
• 4.2 gallon gas tank
• Must use screw-in style vented gas cap, sold separately
• Includes mounting hardware

Note: Painted image of gas tank is for display purpose only

Note: Body work and painting required