The Triumph Speed Four is a motorcycle model from 2002-03 with a four-stroke, transverse four-cylinder, DOHC engine with four valves per cylinder and a 599cc capacity. It has a liquid cooling system, 12.5:1 compression ratio, and multipoint sequential electronic fuel injection with forced air induction. The bike has a max power of 71.4 kW/98 hp at 11750 rpm and a max torque of 55 Nm/5.6 kg-m/41 lb-ft at 8000 rpm. It has a six-speed transmission and a chain final drive. The bike has a 43mm fork front suspension, monoshock with adjustable preload, compression and rebound damping rear suspension, and front and rear brakes with disc and caliper configurations. It has a 24o rake, 89.1mm/3.5in trail, and dimensions of 2165 mm/85.2 in length, 690 mm/27.2 in width, and 1110 mm/43.7 in height. It has a wheelbase of 1395 mm/54.9 in, a seat height of 810 mm/31.9 in, and weighs 170 kg/375 lbs dry and 202 kg/446 lbs wet. It has an 18-liter/4.8 US gal/4.0 Imp gal fuel capacity and gets an average consumption of 4.8 L/100 km/20.8 km/l/49 US mpg/59 Imp mpg. It can complete a standing 1/4 mile in 11.4 sec and has a top speed of 231.4 km/h/144 mph. Cycle World gave the Triumph Speed Four a favorable review.
Technical specifications:
Make Model: Triumph Speed Four
| Year | 2002 – 03 |
|---|---|
| Engine | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity | 599 cc / 36.6 cu in |
| Bore x Stroke | 68 x 41.3 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 12.5:1 |
| Induction | Multipoint sequential electronic fuel injection with forced air induction |
| Ignition | Digital inductive type, via electronic engine management |
| Starting | Electric |
| Max Power | 71.4 kW / 98 hp @ 11750 rpm |
| Max Torque | 55 Nm / 5.6 kg-m / 41 lb-ft @ 8000 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Front Suspension | 43 mm Forks with dual rate springs and adjustable preload, compression and rebound damping |
| Rear Suspension | Monoshock with adjustable preload, compression and rebound damping |
| Front Brakes | 2 x 320 mm Discs, 4 piston calipers |
| Rear Brakes | Single 220 mm disc, 1 piston caliper |
| Front Tyre | 120/70 ZR 17 |
| Rear Tyre | 180/55 ZR 17 |
| Rake | 24o |
| Trail | 89.1 mm / 3.5 in |
| Dimensions | Length 2165 mm / 85.2 in Width 690 mm / 27.2 in Height 1110 mm 43.7 in |
| Wheelbase | 1395 mm / 54.9 in |
| Seat Height | 810 mm / 31.9 in |
| Dry Weight | 170 kg / 375 lbs |
| Wet Weight | 202 kg / 446 lbs |
| Fuel Capacity | 18 Litres / 4.8 US gal / 4.0 Imp gal |
| Consumption Average | 4.8 L/100 km / 20.8 km/l / 49 US mpg / 59 Imp mpg |
| Standing 1/4 Mile | 11.4 sec |
| Top Speed | 231.4 km/h / 144 mph |
| Review | Cycle World |
