| MODEL | HARLEY-DAVIDSON SOFTAIL FAT BOY FLSTF 2000 |
| Year | 2000 |
| Engine Type | Air-cooled 45° V-twin, Twin Cam 88B (counterbalanced, rigid-mounted), pushrod OHV, hydraulic lifters, 2 valves per cylinder |
| Displacement / Capacity | 1449 cc / 88.4 cu in |
| Bore X Stroke | 95.3 x 101.6 mm |
| Compression Ratio | 8.9:1 |
| Cooling System | Air cooled |
| Max Power | 48.8 kW / 67 hp @ 5200 rpm |
| Max Torque | 116.6 Nm / 86 lb-ft @ 3500 rpm |
| Ignition | Single-fire, non-wasted, map-controlled spark ignition |
| Induction | 40 mm CV carburettor with enrichener and accelerator pump (FLSTF); ESPFI fuel injection, 38 mm throttle bore (FLSTFI) |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump, crank-driven gerotor pressure and dual scavenge pump, spin-on filter |
| Gear Box | 5-speed |
| Clutch | Wet 9-plate |
| Final Drive | Belt |
| CHASSIS SPECS | |
| Frame | Mild steel tubular frame, rectangular-section backbone; stamped, cast and forged junctions; MIG welded |
| Front Suspension | 41.3 mm telescopic fork with "beer can" covers, 130 mm / 5.1 in travel |
| Rear Suspension | Hidden, horizontally mounted coil-over shocks, 109 mm / 4.3 in travel |
| Front Brakes | Single 292 mm disc, 4-piston caliper |
| Rear Brakes | Single 292 mm disc, 4-piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2395 mm / 94.3 in |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 645 mm / 25.4 in (laden); 699 mm / 27.5 in (unladen) |
| Wheelbase | 1638 mm / 64.5 in |
| Ground Clearance | 130 mm / 5.1 in |
| Dry Weight | 310 kg / 683 lbs |
| Wet Weight | 324 kg / 714 lbs |
| WHEEL SPECS | |
| Front Tyre | MT90B16 72H |
| Rear Tyre | 150/80B16 71H |
| FUEL SYSTEM | |
| Fuel Capacity | 18.9 Litres / 5.0 US gal |
| Fuel Consumption | — |
| Top Speed | 170 km/h / 106 mph |
For 2000 the Fat Boy switched from the Evolution to the new Twin Cam 88B, a counterbalanced version of the Twin Cam built for the Softail's rigid engine mounts, which needed a revised frame. The bigger 1449 cc engine brought more torque and less vibration, and the bike also gained improved brakes, while the solid-disc wheels, wide FL front end and shotgun exhausts kept its signature look.
