Buell Ulysses XB12 XT - Specifications & Review

Ulysses XB12 XT

Article Complete Info

Articleid263241
CategoryNaked bike
MakeBuell
ModelUlysses XB12 XT
Year2008

Chassis, Suspension, Brakes & Wheels

FrametypeAluminum frame with Uniplanar™ powertrain vibration isolation system, fuel in frame
FrontbrakesSingle disc
Frontsuspension43 mm Showa®
Fronttyre120/70-ZR17
Frontwheeltravel125 mm (4.9 inches)
Rake23.8°
RearbrakesSingle disc
Rearbrakesdiameter240 mm (9.4 inches)
RearsuspensionShowa®
Reartyre180/55-ZR17
Rearwheeltravel125 mm (4.9 inches)

Engine & Transmission

ClutchWet, multi-plate, compensated, reduced lever effort
Compression10.0:1
Displacement1202.88 ccm (73.40 cubic inches)
EnginedetailsV2, four-stroke
ExhaustsystemTuned, tri-pass resonance chamber with InterActive valve and mass-centralized mounting
FuelsystemInjection. 49 mm down draft DDFI III fuel injection
Gearbox5-speed
LubricationsystemDry-sump
Power103.00 HP (75.2 kW)) @ 6800 RPM
Torque113.90 Nm (11.6 kgf-m or 84.0 ft.lbs) @ 6000 RPM
TransmissiontypefinaldriveBelt
Valvespercylinder2

Other Specifications

ColoroptionsRacing Red, Thrust Blue, Midnight Black
StarterElectric

Physical Measures & Capacities

Dryweight210.9 kg (465.0 pounds)
Fuelcapacity16.65 litres (4.40 gallons)
Groundclearance151 mm (5.9 inches)
Overalllength2,319 mm (91.3 inches)
Overallwidth1,006 mm (39.6 inches)
Powerweightratio0.4883 HP/kg

About Buell

Country of Origin: United States
Founder: Erik Buell
Best Known For: Mass centralization, fuel-in-frame, rim-mounted front brake; XB and 1125/1190 platforms

Company History

Buell Motorcycles, founded by engineer and former racer Erik Buell, reimagined sportbike design around mass centralization and chassis stiffness. Early Buells used Harley-Davidson V-twins in compact frames, evolving into the XB series with fuel stored inside the frame spars and a perimeter (rim-mounted) front brake that reduced unsprung weight. The result was agile steering, fierce mid-corner feedback, and a uniquely American take on the sportbike: torque-rich engines married to short wheelbases and steep geometry. Later, liquid-cooled Rotax-powered 1125 models pushed performance further. Buell’s partnership with Harley-Davidson provided factory resources and dealer reach, but strategic tensions and the 2008–09 downturn led to the brand’s closure under H-D ownership. Erik Buell returned with Erik Buell Racing (EBR), developing 1190cc superbikes that proved competitive yet financially difficult in a niche market. The Buell name has since resurfaced under new stewardship, underscoring how resilient the idea remains. Historically, Buell matters because it asked different questions: What if the frame carried fuel? What if the front rotor’s diameter increased while caliper mass shrank? What if rideability on real roads mattered as much as peak dyno numbers? For riders, a Buell offers character—snappy turn-in, stout midrange, and the feeling that the chassis is a living partner. Love or quibble with the quirks, the brand expanded sportbike vocabulary, leaving an imprint on how engineers and enthusiasts think about where weight lives and how a motorcycle should communicate at the limit.

Other Years

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