Yamaha XT660X - 2009 Specifications and Reviews

The 2009 Yamaha XT660X is a nimble supermoto designed for riders seeking versatile street and light off-road capability. Its liquid-cooled 660cc single-cylinder engine delivers predictable mid-range power and torque, making it accessible for intermediate riders. Known for agility and maneuverability, it excels as an affordable urban commuter with genuine adventure credentials.

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General information

CategorySuper motard
Year2009
ModelYamaha XT660X

Engine and Transmission Specifications

ClutchWet, multiple-disc coil spring
Gearbox5-speed
Cooling systemLiquid
Lubrication systemDry sump
Fuel controlSOHC
Fuel systemInjection
Bore x stroke100.0 x 84.0 mm (3.9 x 3.3 inches)
Compression10.0:1
Torque60.00 Nm (6.1 kgf-m or 44.3 ft.lbs)
Power47.33
Engine typeSingle cylinder, four-stroke
Capacity:660.00 ccm (40.27 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakes diameter245 mm (9.6 inches)
Rear brakesSingle disc
Front brakes diameter320 mm (12.6 inches)
Front brakesSingle disc
Rear tyre dimensions160/60-R17
Front tyre dimensions120/70-R17
Rear suspension travel200 mm (7.9 inches)
Rear suspensionSwingarm (monocross)
Front suspension travel200 mm (7.9 inches)
Front suspensionTelescopic forks
Trail94 mm (3.7 inches)
Frame typeSteel tube, diamond shaped

Physical measures and capacities

Oil capacity2.90 litres (0.19 quarts)
Fuel capacity15.00 litres (3.96 gallons)
Wheelbase1,490 mm (58.7 inches)
Ground clearance205 mm (8.1 inches)
Overall length2,175 mm (85.6 inches)
Overall height1,170 mm (46.1 inches)
Seat height875 mm (34.4 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc189.0 kg (416.7 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsWhite, blue, black

Performance Profile & Rider Fit

47.3 hp
Peak Power
5.5s
0-60 mph

Best For

Track60%
City70%
Cornering85%
Daily Riding60%
Touring40%
Passenger35%

Rider Profile

Best ForBest suited to riders with at least some prior experience, since the tall seat, supermoto-tuned chassis, and sharp handling reward confident, active riding.
PurposeBuilt as a road-focused supermoto, this bike is meant for flicking through tight city streets and attacking twisty backroads rather than long-distance cruising or serious off-road work.
Rider FitThe 865mm seat height and light 186kg weight favor taller or more athletic riders who can comfortably manage the bike at a stop and enjoy standing-up, aggressive body positioning.
CharacterIt suits a playful, corner-hungry rider who values sharp steering, sporty street handling, and a punchy single-cylinder engine over outright top speed or plush comfort.
Not Ideal ForIt is not a good match for riders seeking a relaxed touring companion, heavy passenger carrying capability, or a highly capable off-road adventure machine.

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

Rider Fit Visualizer

2009 Yamaha XT660X Rider Ergonomics Assessment

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

Feet:

At 875mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with tip-toe one foot on the 2009 Yamaha XT660X, 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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