| MODEL | HARLEY-DAVIDSON HERITAGE SOFTAIL CLASSIC FLSTC/I 2005 - 2006 |
| Year | 2005 - 2006 |
| Engine Type | Four stroke, 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 | 115 Nm / 85 lb-ft @ 3000 rpm |
| Ignition | Single-fire, non-wasted, map-controlled spark ignition |
| Induction | FLSTC: 40 mm CV carburettor with enrichener and accelerator pump; FLSTCI: ESPFI sequential port fuel injection, 38 mm throttle bore |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump, crank-driven gerotor pressure and dual scavenge pump, spin-on filter |
| Gear Box | 5 Speed |
| Clutch | 9-plate wet |
| Final Drive | Belt |
| CHASSIS SPECS | |
| Frame | Mild steel, rectangular-section backbone |
| Front Suspension | 41.3 mm telescopic fork with "beer can" covers |
| Rear Suspension | Hidden horizontal shocks, triangulated hardtail-look swingarm |
| Front Brakes | Single 292 mm disc, 4-piston caliper |
| Rear Brakes | Single 292 mm disc, 4-piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2400 mm / 94.5 in |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 647.7 mm / 25.5 in (laden), 696 mm / 27.4 in (unladen) |
| Wheelbase | 1638 mm / 64.5 in |
| Ground Clearance | 129.5 mm / 5.1 in |
| Dry Weight | 326 kg / 719 lbs |
| Wet Weight | 341 kg / 750 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 | 41-48 mpg (US) carb; 43-48 mpg (US) EFI |
| Top Speed | — |
The last Twin Cam 88B Heritage Softail Classics kept the five-speed gearbox and the choice of carburettor or injection. Equipment was much as before - studded 1950s-style bags with quick-release buckles, Lexan windshield, passing lamps and floorboards with heel-and-toe shifter - with chrome-laced aluminium wheels as a factory option. For 2007 the model moved to the 96 cu in engine and six speeds.
