Triumph Speed Four - 2004 Specifications and Reviews

The 2004 Triumph Speed Four is a lightweight naked bike designed for riders seeking accessible, engaging performance in an agile package. Its 599cc four-cylinder engine delivers crisp acceleration and refined handling, making it ideal for commuting and spirited riding. Known for combining classic British styling with modern technology, it appeals to both newcomers and experienced riders valuing nimble dynamics.

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General information

CategoryNaked bike
Year2004
ModelTriumph Speed Four
 
 

Engine and Transmission Specifications

Gearbox6-speed
Cooling systemLiquid
Fuel controlDOHC
Fuel systemInjection
Bore x stroke68.0 x 41.3 mm (2.7 x 1.6 inches)
Compression12.5:1
Torque68.00
Power97.00
Stroke4
Engine typeIn-line four
Capacity:599.00 ccm (36.55 cubic inches)

Physical measures and capacities

Wheelbase1,395 mm (54.9 inches)
Overall width690 mm (27.2 inches)
Overall length2,060 mm (81.1 inches)
Overall height1,150 mm (45.3 inches)
Seat height810 mm (31.9 inches) If adjustable, lowest setting.
Dry weight170.0 kg (374.8 pounds)
 
 

Triumph Speed Four dimensions and frame

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter310 mm (12.2 inches)
Front brakesDouble disc
Rear tyre dimensions180/55-ZR17
Front tyre dimensions120/70-ZR17

Speed and acceleration

Power/weight ratio0.5706 HP/kg

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity18.00 litres (4.76 gallons)

Performance Profile & Rider Fit

98 hp
Peak Power
3.4s
0-60 mph

Best For

Track75%
City70%
Cornering88%
Daily Riding55%
Touring30%
Passenger35%

Rider Profile

Best ForBest suited to riders with some prior experience, as the high-revving inline-four and sharp chassis reward a confident, active riding style.
PurposeBuilt for spirited road riding and canyon carving, blending a screaming supersport-derived engine with an upright naked-bike stance.
Rider FitA light dry weight and moderate seat height make it manageable for most rider sizes, though the firm sporty ergonomics ask for decent wrist and core engagement.
CharacterA fiery, revvy little naked bike that loves being thrashed near redline and rewards aggressive, playful riding.
Not Ideal ForNot ideal for riders seeking long-distance comfort, passenger-friendly touring, or off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2004 Triumph Speed Four Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 810mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2004 Triumph Speed Four, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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