| MODEL | TRIUMPH SPEEDMASTER ROADSTER 2003 - 2004 |
| Year | 2003 - 2004 |
| Engine Type | Four-stroke, parallel twin, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 790 cc / 48.2 cu in |
| Bore X Stroke | 86 x 68 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air cooled |
| Max Power | 45.2 kW / 62 hp @ 7400 rpm |
| Max Torque | 60 Nm / 40.6 lb-ft @ 3500 rpm |
| Ignition | Digital inductive |
| Induction | 2 x carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Tubular steel cradle; twin-sided tubular steel swingarm |
| Front Suspension | 41 mm telescopic forks |
| Rear Suspension | Chromed spring twin shocks with adjustable preload |
| Front Brakes | 2 x 310 mm discs, 2-piston calipers |
| Rear Brakes | Single 285 mm disc, 2-piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 229 kg / 504 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 110/80-18 |
| Rear Tyre | 170/80-15 |
| FUEL SYSTEM | |
| Fuel Capacity | 16.6 Litres / 4.4 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The first Speedmaster was Triumph's cruiser take on the Bonneville America, using the air-cooled 790 cc parallel twin with a 270-degree crank. It offered a stripped hot-rod look with a low riding position and a five-speed box, aimed at the Sportster class.
