Engine Upgrades Enhance Performance and Durability of 2008 XB12R.
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
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.
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.
Buell Firebolt XB12R highlights:
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
Engine Engine: Air/oil/fan-cooled, 4-stroke, 45˚ V-Twin Valve Train: OHV, two valves per cylinder, self-adjusting Bore x Stroke: 3.50 in. x 3.81 in. (88.90 mm x 96.82 mm) Displacement: 73.40 cu. in. (1202.81 cc) Compression Ratio: 10.0:1 Fuel Delivery: 49 mm down draft DDFI III fuel injection Intake (Air Cleaner for Blast): Zero-resistance airbox Exhaust: Tuned, tri-pass resonance chamber with InterActive valve and mass-centralized mounting Torque (North America per SAE J607): 84 ft. lbs. @ 6000 rpm (113.9 NM @ 6000 rpm) Horsepower (North America per SAE J607): 103 hp @ 6800 rpm Lubrication: Dry-sump Oil Capacity: 2.50 qts. (2.37 L) Oil Filtration: Screw-on disposable element
Drivetrain Primary Drive: Chain, 1.500:1 (57/38) ratio Final Drive: Constant path, 14 mm pitch aramid-reinforced Goodyear Hibrex® belt with Flexten® Plus technology, 2.407:1 (65/27) ratio Clutch: Wet, multi-plate, compensated, reduced lever effort Transmission: 5-speed, helical gear Gear Ratios:
2008 Buell Firebolt XB12R
Chassis Frame: Aluminum frame with Uniplanar powertrain vibration isolation system, fuel in frame Front Fork: 43 mm Showa inverted forks with adjustable compression damping, rebound damping,and spring preload Rear Shock: Showa coil-over monoshock with remote, under-seat reservoir and adjustable compression damping, rebound damping, and spring preload Wheels: Cherry Bomb Translucent or Hero Blue Translucent (new)
Front: 6-spoke, ZTL cast aluminum, 3.50 in. x 17 in. (88.90 mm x 431.80 mm)
Rear: 6-spoke, cast aluminum, 5.50 in. x 17 in. (139.70 mm x 431.80 mm)
Rear: Single-piston, floating caliper; 240 mm stainless steel, fixed rotor
Front Wheel: 4.72 in. (1119.89 mm)
Rear Wheel: 5.06 in. (128.52 mm)
Electric Battery (per Battery Council International Rating): Sealed lead acid, maintenance-free, 12V, 12 amp/hour, 200 cca (per Battery Council International Rating) Charging: 30-amp, permanent magnet, single-phase alternator with solid-state regulator Starting: 1.2 kW electric with solenoid shift starter motor engagement Lights (as per country regulation):
Headlamp(twin projector beam [H3]): 55-watt low beam, 55-watt high beam
Tail / Stop Lights: 5W/21W
Turn Signal Lights: 10W manual canceling
Electronic speedometer, tachometer, odometer; dual tripmeter; high beam, neutral, oil, low fuel (plus, odometer shows miles traveled on reserve), turn signal and engine diagnostic indicator lamps; clock