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YAMAHA XT 660X (2004-2005) Specs, Performance & Photos

Segment: Trial
Production years: 2004, 2005

YAMAHA XT 660X 2004-2005 10 Photos
YAMAHA XT 660X (2004-2005)YAMAHA XT 660X (2004-2005)YAMAHA XT 660X (2004-2005)YAMAHA XT 660X (2004-2005)YAMAHA XT 660X (2004-2005)YAMAHA XT 660X (2004-2005)YAMAHA XT 660X (2004-2005)YAMAHA XT 660X (2004-2005)YAMAHA XT 660X (2004-2005)YAMAHA XT 660X (2004-2005)

In 2004, the Japanese motorcycle manufacturer launched the Yamaha XT 660X, a motorcycle produced alongside the XT 660R racing motorcycle. Both motorcycles packed the same engine and shared some chassis components.

The bike was fitted with standard features, such as a high-mounted front fender, a single headlight, a small front cowl with a tiny windscreen, a one-piece dual seat with passenger grab handles, a dual exhaust system with a silencer on each side, and wire-spoke wheels with road tires.

The bike was built around a steel tubular diamond frame with a 43 mm telescopic fork on the front end, providing 225 mm of travel, and a monocross suspension system on the rear, delivering 200 mm of travel.

In the braking department, the XT 660X had installed a 320 mm disc grabbed by a four-piston caliper on the front wheel and a 245 mm disc managed by a single-piston caliper on the rear wheel, delivering optimum braking performance.

In the performance department, the 2004 Yamaha XT 660X had installed a 659cc four-stroke liquid-cooled single-cylinder engine managed by a fuel injection system. As for the power figures, the power unit provided 48 hp with a peak force at 6,000 rpm and 58 Nm (43 lb-ft) torque at 5,250 rpm.

The power produced by the engine was sucked into a five-speed manual transmission with a wet multi-plate clutch and sent to the rear end through a final chain drive.

YAMAHA XT 660X 2004-2005

YAMAHA XT 660X 660

engine specs
Type:Liquid-cooled, Single Cylinder, 4-stroke
Displacement:659 cm3
Bore X Stroke:4x3.3 in OR 102 mm
Compression Ratio:10:1
Horsepower:48/6000 KW(hp)/RPM
Torque:43.1/5250 lb-ft/RPM OR 58/5250 Nm/RPM
Fuel System:Electronic Injection
transmission specs
Gearbox:5-Speed
Clutch:Wet multi-plate
Primary Drive:-
Final Drive:Chain
chassis specs
Frame:Steel tubular diamond frame with dual tank rails
Front Suspension:Telescopic Fork
Rear Suspension:Monocross With Linkage
Front Brake:Single 320 Mm With 4-piston Calipers
Rear Brake:Single 245 Mm Disc With 2-piston Calipers
dimension specs
Overall Length:83.9 in OR 2131 mm
Overall Width:33.9 in OR 861 mm
Seat Height:34.4 in OR 874 mm
Wheelbase:58.5 in OR 1486 mm
Ground Clearance:7.9 in OR 201 mm
Weight:381 lbs OR 173 kg
Fuel Capacity:4 gallons OR 15.1 L
tyres specs
Front:120/70-17
Rear:160/60-17
power system specs
Power pack:-
Nominal Capacity:-
Maximum Capacity:-
Charger type:-
Charging time (normal):-
Charging time (quick):-
Range:-
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