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Saddle Tank

The term saddle tank refers to a type of fuel tank design used in various vehicles, particularly in trucks, motorcycles, and some heavy equipment. It can refer to different mounting configurations depending on the application:


1. Automotive/Truck Application

A saddle tank in trucks or large vehicles is a fuel tank mounted above or alongside the rear axle, typically straddling it like a saddle. These tanks are:

  • Positioned on either side of the vehicle frame, often in pairs.
  • Designed to maximize fuel capacity while maintaining vehicle balance.
  • Common in commercial trucks, buses, and military vehicles.

Key Features:

  • Accessible for refueling.
  • Often constructed from steel or aluminum.
  • May include fuel transfer systems for balancing fuel between tanks.

2. Motorcycle Application

In motorcycles, a saddle tank refers to a fuel tank that is mounted over the top frame tube, resembling the shape of a horse saddle draped across the bikes spine.

Key Features:

  • Classic design found in vintage and cruiser motorcycles.
  • Positioned to lower the center of gravity and improve handling.
  • May be split into two halves on either side of the frame for stylistic or functional reasons.

Summary:

A saddle tank earns its name from the way it “sits” over or around a part of the vehicle—like a saddle on a horse—either over the rear axle in trucks or the top frame tube in motorcycles. It is used primarily for fuel storage and weight distribution.

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