It appears you're interested in specifications for the Harley-Davidson FLSTF Fat Boy. This Custom / cruiser model is powered by a V2, four-stroke engine with 1338.00 ccm (81.64 cubic inches) of actual displacement before 8.5:1 compression. Fueling is metered via allowing this machine to produce its 56.00 HP (40.9 kW) horsepower and 97.00 Nm (9.9 kgf-m or 71.5 ft.lbs) torque. According to our records engine heat of the Harley-Davidson FLSTF Fat Boy is moderated by Air. You'll need to get familiar with the 5-speed transmission and pay attention to final drive Belt maintainence. Our best information shows that the front tire size is and the rear is . The entire package is supported by the frame, . We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc front brakes and Single disc rear brakes. The Harley-Davidson FLSTF Fat Boy was launched in 1999, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.