Suppliers State......This one-piece stretched gas tank has a proper dash mount and will give your Softail a longer, stretched look. This tank will change the appearance of your bike. Due to the stretch these tanks must be used with a Custom seat. Tanks are available for use with OEM style Screw-In style gas caps on the right hand side and fuel gauge on the left side. For those who can do without this gauge we have a tank available that uses our Quick Cam lockable gas caps on both sides. Tanks take approx. 5.1 gallon (19.3L.) of fuel.