The Triumph Speedmaster Roadster was made from 2003-2004 and had a four stroke, parallel twin, DOHC engine with 4 valves per cylinder and a capacity of 790 cc. It had a compression ratio of 9.2:1 and was air cooled with 2 electronic carburetors. The ignition and starting were digital inductive type. Its maximum power was 45.2 kW / 62 hp at 7400 rpm and the maximum torque was 60 Nm / 6.1 kgf-m / 40.6 lb-ft at 3500 rpm. The motorcycle had a 5-speed transmission with a chain final drive. The frame was tubular steel cradle with a twin-sided, tubular steel swingarm. The front suspension was 41mm telescopic forks and the rear suspension was chromed spring twin shocks with adjustable preload. The front brakes were 2 x 310mm discs with 2 piston calipers and the rear brakes were a single 285mm disc with a 2 piston caliper. The front tire was 110/80-18 and the rear tire was 170/80-15. Its dry weight was 229 kg / 504 lbs and its fuel capacity was 16.6 Liters / 4.4 US gal / 3.65 Imp gal.
Technical specifications:
Make Model: Triumph Speedmaster Roadster
| Year | 2003 – 04 |
|---|---|
| Engine | Four stroke, parallel twin, DOHC, 4 valves per cylinder |
| Capacity | 790 cc / 48.2 cu in |
| Bore x Stroke | 86 x 68 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air cooled |
| Induction | 2 x Electronic carburetors |
| Ignition / Starting | Digital inductive type |
| Max Power | 45.2 kW / 62 hp @ 7400 rpm |
| Max Torque | 60 Nm / 6.1 kgf-m / 40.6 [email protected] 3500 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Frame | Tubular steel cradle. Swingarm: twin-sided, tubular steel |
| Front Suspension | 41mm Telescopic forks |
| Rear Suspension | Chromed spring twin shocks with adjustable preload |
| Front Brakes | 2 x 310mm Discs, 2 piston calipers |
| Rear Brakes | Single 285 mm disc, 2 piston caliper |
| Front Tyre | 110/80-18 |
| Rear Tyre | 170/80-15 |
| Dry Weight | 229 kg / 504 lbs |
| Fuel Capacity | 16.6 Litres / 4.4 US gal / 3.65 Imp gal |
