What category is the 2004 Yamaha XT 660 X Supermotard?

The 2004 Yamaha XT 660 X Supermotard has a Category of Super motard.

What is the engine size of the 2004 Yamaha XT 660 X Supermotard?

The 2004 Yamaha XT 660 X Supermotard has a Capacity: of 659.00 ccm (40.21 cubic inches).

What type of engine does the 2004 Yamaha XT 660 X Supermotard have?

The 2004 Yamaha XT 660 X Supermotard has a Engine type of Twin.

What is the engine power of the 2004 Yamaha XT 660 X Supermotard?

The 2004 Yamaha XT 660 X Supermotard has a Power of 47.33.

What is the torque of the 2004 Yamaha XT 660 X Supermotard?

The 2004 Yamaha XT 660 X Supermotard has a Torque of 58.40.

Is the 2004 Yamaha XT 660 X Supermotard air cooled or liquid cooled?

The 2004 Yamaha XT 660 X Supermotard has a Cooling system of Liquid.

How much does the 2004 Yamaha XT 660 X Supermotard weigh?

The 2004 Yamaha XT 660 X Supermotard has a Dry weight of 173.0 kg (381.4 pounds).

What is the seat height of the 2004 Yamaha XT 660 X Supermotard?

The 2004 Yamaha XT 660 X Supermotard has a Seat height of 875 mm (34.4 inches) If adjustable, lowest setting..

Yamaha XT 660 X Supermotard - 2004 Specifications and Reviews

Name: 2004 Yamaha XT 660 X Supermotard
Brand: Yamaha

The 2004 Yamaha XT 660 X is a versatile supermotard that appeals to riders seeking a practical blend of street performance and off-road capability. Powered by a 659cc liquid-cooled twin engine delivering 47 horsepower, it excels at urban commuting and weekend adventures on varied terrain. Known for its lightweight agility, comfortable ergonomics, and genuine dual-sport character, it's ideal for riders wanting honest, manageable performance without unnecessary complexity.

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2004

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Yamaha XT 660 X Supermotard 2004 55409 Thumb

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General information
Category	Super motard
Year	2004
Model	Yamaha XT 660 X Supermotard
Engine and Transmission Specifications
Cooling system	Liquid
Fuel control	DOHC
Bore x stroke	100.0 x 84.0 mm (3.9 x 3.3 inches)
Compression	10.0:1
Torque	58.40
Power	47.33
Stroke	4
Engine type	Twin
Capacity:	659.00 ccm (40.21 cubic inches)

Physical measures and capacities
Wheelbase	1,485 mm (58.5 inches)
Ground clearance	200 mm (7.9 inches)
Overall width	860 mm (33.9 inches)
Overall length	2,131 mm (83.9 inches)
Overall height	1,349 mm (53.1 inches)
Seat height	875 mm (34.4 inches) If adjustable, lowest setting.
Dry weight	173.0 kg (381.4 pounds)
Yamaha XT 660 X Supermotard dimensions and frame
Rear brakes diameter	245 mm (9.6 inches)
Rear brakes	Single disc
Front brakes diameter	320 mm (12.6 inches)
Front brakes	Single disc
Rear tyre dimensions	160/60-17
Front tyre dimensions	120/70-17
Rear suspension travel	191 mm (7.5 inches)
Rear suspension	Monocross with linkage
Front suspension travel	200 mm (7.9 inches)
Front suspension	Telescopic fork, diameter 43mm
Speed and acceleration
Power/weight ratio	0.2736 HP/kg

Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Color options	Racing blue, Yamaha black

Performance Profile & Rider Fit

47.3 hp

Peak Power

4.8s

0-60 mph

Best For

Track60%

City82%

Cornering88%

Daily Riding65%

Touring42%

Passenger40%

Rider Profile

Best For	Best suited to intermediate to experienced riders who enjoy a light, flickable bike that rewards aggressive throttle and brake inputs.
Purpose	Designed for sharp, playful cornering on twisty tarmac and urban streets rather than long-distance cruising or serious off-road work.
Rider Fit	The tall 875mm seat height and narrow, upright single-cylinder-style stance suit taller riders comfortable with a lean, top-heavy feel at low speed.
Character	A punchy big-bore single-twin motard character with strong torque delivery, sharp street-focused handling, and a raw, minimalist riding experience.
Not Ideal For	Not ideal for riders seeking plush long-haul comfort, pillion-friendly touring, or genuine off-road capability given its supermoto tyres and firm setup.

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

Rider Fit Visualizer

2004 Yamaha XT 660 X Supermotard Rider Ergonomics Assessment

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Feet:

At 875mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with tip-toe one foot on the 2004 Yamaha XT 660 X Supermotard, with a relaxed knee angle of around 140 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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