Triumph Speed Four: history, specs, pictures

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2002-Triumph-Speed-Four.jpg
Triumph Speed Four
Manufacturer
Production 2003 - 2006
Class Naked
Engine
Liquid-cooled, DOHC, in-line 4-cylinder, 4-stroke
Bore / Stroke 68.6mm x 68.6mm
Compression ratio 12.5:1
Horsepower 98.03 HP (73.1 KW) @ 11750RPM
Torque 50.16 ft/lbs (68.0 Nm) @ 10500RPM
Fuel System Multipoint sequential electronic fuel injection with forced air induction
Air Filter K&N TB-6000 `03-05[1]
Ignition digital - inductive type - via electronic engine management system
Spark Plug NGK CR9EK '03-05
Battery YUASA YB14L-A2 '03-05
Transmission Gear box: Gears

Final Drive: X-ring chain

Clutch: Wet, multiplate
Final Drive Chain: 525 `02-06[2]
Suspension Front: 43mm forks with dual rate springs and adjustable preload, rebound and compression damping
Rear: Monoshock with adjustable preload, rebound and compression damping
Brakes Front: Twin 310mm floating discs, 4 piston calipers
Rear: Single 220mm disc, single piston caliper
Front Tire 120/70 ZR17
Rear Tire 180/55 ZR17
Wheelbase 54.88 inches (1394 mm)
Length 85.2 inches (2164 mm)
Width 27.2 inches (691 mm)
Height 43.7 inches (1110 mm)
Seat Height 31.89 inches (810 mm)
Weight 374.79 pounds (170.0 Kg) (dry), 170.0 kg (wet)
Fuel Capacity 4.39 Gallon (16.60 Liters)
Related Triumph Speed Triple
Manuals Service Manual


The Triumph Speed Four was a Liquid-cooled, DOHC, in-line 4-cylinder, 4-stroke Naked motorcycle produced by Triumph between 2003 and 2006. Max torque was 50.16 ft/lbs (68.0 Nm) @ 10500 RPM. Claimed horsepower was 98.03 HP (73.1 KW) @ 11750 RPM.

Engine[edit]

The engine was a liquid cooled Liquid-cooled, DOHC, in-line 4-cylinder, 4-stroke. A 68.6mm bore x 68.6mm stroke result in a displacement of just 599.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin cam (dohc).

Drive[edit]

The bike has a Gears transmission. Power was moderated via the Wet, multiplate.

Chassis[edit]

It came with a 120/70 ZR17 front tire and a 180/55 ZR17 rear tire. Stopping was achieved via Twin 310mm floating discs, 4 piston calipers in the front and a Single 220mm disc, single piston caliper in the rear. The front suspension was a 43mm forks with dual rate springs and adjustable preload, rebound and compression damping while the rear was equipped with a Monoshock with adjustable preload, rebound and compression damping. The Speed Four was fitted with a 4.39 Gallon (16.60 Liters) fuel tank. The bike weighed just 374.79 pounds (170.0 Kg). The wheelbase was 54.88 inches (1394 mm) long.

2003 Triumph Speed Four[edit]

2003 Triumph Speed Four 2003 Triumph Speed Four 2003 Triumph Speed Four 2003 Triumph Speed Four

An intriguing presence, the 2002 Speed Four is a naked supersport bike with an ultra-aggressive styling meant to boast both performance and the head-turning factor. Powerful and exceptionally maneuverable, the 2002 Speed Four comes with a lightweight chassis and progressive, predictable brakes and fully adjustable suspensions, front and rear.

For both track fun and city slicing, the 2002 Speed Four is a valid choice in case you're looking for high-adrenaline fun and modern British character.


2004 Triumph Speed Four[edit]

2004 Triumph Speed Four 2004 Triumph Speed Four 2004 Triumph Speed Four

The 2003 Speed Four is a sweet derivation from the acclaimed Daytona 600 machine, but it rather establishes a class of its own. Most likely it's the radical styling which will make heads turn: naked, agile and utterly aggressive, the Speed Four also comes with exceptional handling and a strong feeling of being in control.

With powerful brakes and its lightweight construction, the 2003 Speed Four is a sweet choice for urban riding, being an excellent commuter and doubling as a nimble machine for weekends at the track or just leisure riding.


2005 Triumph Speed Four[edit]

2005 Triumph Speed Four 2005 Triumph Speed Four 2005 Triumph Speed Four

The 2004 Speed Four carries on the naked roadster heritage and brings all the brawn of a supersport machine in a more streetable package which is great for daily riders as it is rewarding on the track or for weekend getaways. Exceptional handling and an upright riding position add a lot of usability for this bike, while the uncompromised, straightforward styling is all radical Triumph DNA.

Light and nimble, the 2004 Speed Four is a great sporty all-rounder which will provide enormous fun in pretty much any scenario.


2006 Triumph Speed Four[edit]

2006 Triumph Speed Four 2006 Triumph Speed Four 2006 Triumph Speed Four 2006 Triumph Speed Four 2006 Triumph Speed Four

One of the last in-line 4 machines manufactured by Triumph, the Speed Four is a high-performance roadster which boasts its ultra-aggressive styling and matches it with equally thrilling performance from the supersport-class 599cc engine.

A middleweight naked beast for exceptional fun in the busy urban traffic and even more fun for fast weekend getaways around the city, the Speed Four is a great choice for a daily bike. And with adjustable suspensions, there's no telling how fun time spent aboard it can be.

References[edit]

  1. 2019 K&L Supply Co Catalog. K&L Supply Co. 2019. 
  2. 2019 Western Power Sports Catalog. Western Power Sports. 2019.