Buell Lightning XB12S - 2004 Specifications and Reviews

The 2004 Buell Lightning XB12S is a raw, aggressive naked bike designed for riders seeking authentic performance and character. Its 1203cc twin-cylinder engine delivers 100 horsepower and impressive 109.7 lb-ft torque, making it best known for combining American V-twin muscle with lightweight agility and sharp handling characteristics.

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General information

CategoryNaked bike
Year2004
ModelBuell Lightning XB12S

Engine and Transmission Specifications

Transmission typefinal driveBelt
Gearbox5-speed
Cooling systemAir
Fuel controlOHV
Valves per cylinder2
Fuel systemInjection
Bore x stroke88.9 x 96.8 mm (3.5 x 3.8 inches)
Compression10.0:1
Torque109.70
Power100.00
Stroke4
Engine typeTwin
Capacity:1203.00 ccm (73.41 cubic inches)

Physical measures and capacities

Wheelbase1,320 mm (52.0 inches)
Ground clearance127 mm (5.0 inches)
Overall width831 mm (32.7 inches)
Overall length1,924 mm (75.7 inches)
Overall height1,232 mm (48.5 inches)
Seat height765 mm (30.1 inches) If adjustable, lowest setting.
Dry weight179.0 kg (394.6 pounds)
 
 

Buell Lightning XB12S dimensions and frame

Rear brakes diameter240 mm (9.4 inches)
Rear brakesSingle disc
Front brakes diameter375 mm (14.8 inches)
Front brakesSingle disc
Rear tyre dimensions180/55-ZR17
Front tyre dimensions120/70-ZR17
Rear suspension travel127 mm (5.0 inches)
Rear suspensionShowa shock absorber with adjustable compression damping, rebound damping and spring preload
Front suspension travel120 mm (4.7 inches)
Front suspensionShowa inverted fork with adjustable compression damping, rebound damping and spring preload
Trail83 mm (3.3 inches)
Rake (fork angle)21.0°
Frame typeAluminium Frame with Uniplanar powertrain vibration isolation system
 
 

Speed and acceleration

Power/weight ratio0.5587 HP/kg

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsMidnight Black, Racing Red/Graphite-Grey/Translucent Amber
Fuel capacity14.00 litres (3.70 gallons)

Performance Profile & Rider Fit

103 hp
Peak Power
3.3s
0-60 mph

Best For

Track65%
City75%
Cornering92%
Daily Riding60%
Touring40%
Passenger35%

Rider Profile

Best ForBest suited to riders with intermediate to advanced experience who can handle a torquey, quick-steering V-twin with sharp, unconventional handling traits.
PurposeBuilt for aggressive backroad blasting and twisty-road carving rather than commuting or long-distance touring.
Rider FitA light, compact naked bike with a low dry weight and short wheelbase that rewards an active, engaged riding style over raw muscle.
CharacterDelivers punchy low-end torque, a distinctive American V-twin growl, and razor-sharp cornering agility thanks to its mass-centralized design and steep steering geometry.
Not Ideal ForNot ideal for riders wanting plush comfort, pillion-friendly ergonomics, or a bike suited to long highway journeys or off-road use.

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

Rider Fit Visualizer

2004 Buell Lightning XB12S Rider Ergonomics Assessment

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Feet:

At 765mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2004 Buell Lightning XB12S, with a moderate knee angle of around 110 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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