Buell XB12R Firebolt


Make Model.

Buell XB12R Firebolt




45° V-Twin, four stroke, pushrod actuated overhead valve. hydraulic self-adjusting lifters, 2 valve per cylinder.


1203 cc / 73 cu in
Bore x Stroke 88.9 x 96.8 mm
Compression Ratio 10.0:1
Cooling System Air cooled
Exhaust Free breathing, 2-into-1 Buell Interactive exhaust system


Ø49 mm downdraft DDFI II fuel injection



Max Power

86.9 kW / 103 hp @ 6800 rpm

Max Torque

114 Nm / 11.6 kgf-m / 84 ft-lbs @ 6000 rpm


5 Speed

Final Drive

Frame Aluminium frame with Uniplanar™ Powertrain vibration isolation system




83 mm / 3.3"

Front Suspension

Showa Ø43 mm inverted forks compression damping, rebound damping and spring preload adjustable

Front Wheel Travel

120 mm / 4.7"

Rear Suspension

Showa coil-over monoshock, remote underseat reservoir and adjustable compression damping, rebound damping and spring preload, 127mm wheel travel

Rear Wheel Travel

127 mm / 5.0"

Front Brakes

ZTL type brake, 6 piston, fixed caliper, Ø375 mm single-sided, inside out, stainless steel, floating rotor

Rear Brakes

Single Ø240 mm disc, 1 piston floating caliper

Front Wheel

3.50 x 17"

Rear Wheel

5.50 x 17"

Front Tyre

120/70 ZR17, Pirelli Diablo

Rear Tyre

180/55 ZR17 Pirelli Diablo


Length: 1924 mm / 75.7"

Width:     768 mm / 30.2"

Height:  1092 mm / 43.0"

Wheelbase 1320 mm / 52.0"
Ground Clearance 127 mm / 5.0"
Seat Height 775 mm / 30.5"

Dry Weight

179 kg / 395 lbs

Fuel Capacity

14 L / 3.7 US gal

Average Fuel Consumption

5.6 L/100 km / 17.9 km/L / 42 US mpg

Standing ¼ Mile

11.4 sec, 182 km/h / 113 mph

Top Speed

249 km/h / 155 mph
Reviews Greg Sanchez

A premium sportfighter motorcycle, the Firebolt XB12R utilizes a compact wheelbase and race-inspired chassis geometry for nimble, intuitive handling. The 1203cc Buell Thunderstorm V-Twin engine makes 103 peak horsepower at 6800 rpm, and 84 ft. lbs. of peak torque at 6000 rpm, with 75 percent of peak torque available at 3500 rpm. The Buell InterActive Exhaust system utilizes a valve in the dual-chamber muffler that is controlled by the ECM and adjusts exhaust flow according to riding conditions to smooth torque delivery and optimize engine power. The Firebolt features clip-on handlebars for optimal control, an aerodynamic quarter-fairing with dual projector-beam headlamps, and a sleek, covered passenger pillion. The suggested retail price of the Firebolt XB12R has been reduced by $500, to $9,995.

In a convergence of American V-Twin muscle and track-inspired chassis dynamics, the 2008 Buell Firebolt XB12R offers sportbike riders an unrivaled riding experience. Powerful, well-balanced, reliable and also easy to own, the Buell Firebolt is a sport motorcycle designed to take its rider to a new level of performance, whether as a track-day champ or as an exhilarating canyon carving tool. A winner of multiple pro and amateur roadracing championships around the world, the Firebolt was also presented with the coveted "Best Cornering Motorcycle of All Time" award by Britain's Bike magazine.

The Firebolt XB12R is powered by the air/oil/fan-cooled 1203cc Thunderstorm V-Twin engine tuned to deliver immediate, usable power over a broad rpm range and launch the Firebolt out of corners and down the road. The Buell Trilogy of Technology principles – frame rigidity, low unsprung weight and mass centralization  are employed to give the Firebolt uncanny, intuitively responsive handling. Styled to reveal its pure, mechanical beauty, the Buell Firebolt looks and performs like no other motorcycle on the road.

 What's New on the Firebolt XB12R for 2008 onwards
Modifications enhance the performance of the Thunderstorm 1203 V-Twin powertrain, reduce maintenance costs, and allow a redline of 7100 rpm (see separate Thunderstorm release for details)

The Firebolt is pre-wired for installation of accessory heated hand grips, with 18 watts per side and High and Low heat settings.

The instrument panel styling is refreshed and the tachometer reflects the new 7100-rpm redline.

A commemorative Buell 25th Anniversary graphic with Erik Buell's signature is placed on the upper triple clamp.

Cosmetic frame protectors help reduce damage to the frame in case of a tip-over incident.

A new color choice: Arctic White body panels, Hero Blue Translucid wheels and windscreen, and a Graphite Grey frame.


Buell Thunderstorm 1203 V-Twin engine
103 peak hp @ 6800 rpm (per SAE J607)
84 ft. lbs. peak torque @ 6000 rpm (per SAE J607)
Buell InterActive Exhaust
New DDFI 3 Electronic Fuel Injection ECM
New eight-row oil cooler with Jiffy-tite fittings
Dry Weight: 395 pounds
Wheelbase: 52 inches
Fully adjustable 43 mm Showa inverted fork
Fully adjustable Showa rear shock absorber
Buell ZTL front brake
Goodyear Hibrex drive belt with Flexten Plus technology
New Cosmetic Frame Protectors
New Pre-Wired for Available Heated Grips
New Instrument Panel Graphics
Pirelli Diablo T tires
New Arctic White/Hero Blue Translucent colors
Commemorative Buell 25th Anniversary badge