The Triumph Speedmaster Roadster, released in 2009-10, is a four stroke, parallel twin, DOHC motorcycle with a capacity of 865 cc. The bike has a bore and stroke of 90 x 68 mm and a compression ratio of 9.2:1. The Speedmaster Roadster uses air cooling and multipoint sequential electronic fuel injection with SAI for induction. The motorcycle is started electrically and is powered by a maximum power output of 45.5 kW / 61 hp @ 6800 RPM and a maximum torque of 74.5 Nm / 7.6 kgf-m / 55 ft.-lb @ 3300 RPM. The transmission of the bike is a 5 speed manual, with the final drive using a chain. The Triumph Speedmaster Roadster has a tubular steel cradle frame and twin-sided, tubular steel swingarm. The front suspension is a 41mm telescopic fork, while the rear suspension is chromed spring twin shocks with adjustable preload. The front brakes are two 310mm discs with two piston calipers, and the rear is a single 285mm disc with a two piston caliper. The front tire measures 110/80-18, and the rear tire is 170/80-15. The bike has a seat height of 719mm / 28.3in and a dry weight of 229 kg / 504 lbs.
Technical specifications:
Make Model: Triumph Speedmaster Roadster
| Year | 2009 – 10 |
|---|---|
| Engine | Four stroke, parallel twin, DOHC, 4 valves per cylinder |
| Capacity | 865 cc / 52.8 cu in |
| Bore x Stroke | 90 x 68 mm |
| Compression Ratio | 9.2:1 |
| Cooling System | Air cooled |
| Induction | Multipoint sequential electronic fuel injection with SAI |
| Ignition | Digital inductive type |
| Starting | Electric |
| Max Power | 45.5 kW / 61 hp @ 6800 rpm |
| Max Torque | 74.5 Nm / 7.6 kgf-m / 55 ft.-lb @ 3300 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Clutch | Wet, multi-plate |
| 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 310 mm Discs, 2 piston calipers |
| Rear Brakes | Single 285 mm disc, 2 piston caliper |
| Front Tyre | 110/80-18 |
| Rear Tyre | 170/80-15 |
| Seat Height | 719 mm / 28.3 in |
| Dry Weight | 229 kg / 504 lbs |
