We know that Buell builds their models utilizing the so called Trilogy of Technology - chassis rigidity, centralized mass, and low unsprung weight – in order to achieve great chassis response and while this characterizes the 1125R too, the liter-class superbike category also requires a unique combination of engine performance, precise-and-agile handling, raw sound and performance in order to consider the innovative package complete. These are simple words to describe such a complex motorcycle characterized by unique styling, aggressive ergonomics and premium components combined to deliver the ultimate, intuitive sport riding experience.

  • 2010 Buell 1125R
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New Lightning® CityX XB12SX brings more power to the streets

The Buell® riding experience embodies radical designs and intuitive performance that rewards uncompromising riders. From the race track to the back road, a Buell® motorcycle will take any path necessary to put its rider out front because Buell believes a deep bond between rider and machine is the essence of motorcycling.

Buell maintains its defiant stance in 2010 with a versatile line-up of motorcycles designed to inspire riders to achieve ultimate performance. For the street, the 1125CR™ café racer with new upright handlebars, and the extended XB Lightning® line-up for Europe – including the new Lightning® CityX XB12SX motorcycle – are now packing more style and power than ever. In the sportbike category, in a nod to Buell’s increasing victories and success on track, riders will see even more of Buell’s convention-breaking liquid-cooled 1125R™. For adventures that go way beyond the road, the Ulysses® XB12 range sees various upgrades make it the most exhilarating ride yet.

“The story of Buell® motorcycles shows that great things can happen with creativity, vision and hard work,” said Erik Buell, Chief Technical Officer, Buell Motorcycle Company. “A dream that started with a few of us getting our hands dirty in garages and on racetracks in the 1980s is now providing riders with quality American-built motorcycles and winning at the top levels of AMA Pro Racing.”

In 2010 Buell continues to focus on the ride with the addition of features like front brake master cylinder piston seals and rotor mountings, LED taillights and rear turn signals, oxygen sensors and tyres, as well as new graphics and bodywork. Whether it’s the 1125cc Helicon® liquid-cooled, four-stroke, fuel-injected 72-degree V-Twin engine or the 1203cc Thunderstorm™ air/oil/fan-cooled, four-stroke, fuel-injected 45-degree V-Twin engine, Buell blends original design with productive power and dynamic performance for a light and tight ride.

Always willing to challenge conventional motorcycle design with leading edge innovations like fuel in the frame, oil in the swing arm or a perimeter-mounted front brake, Buell continues to give its riders what they want in a performance sport bike. The Buell Trilogy of Technology principles of low unsprung weight, mass centralisation and chassis rigidity have long guided the Buell ruthless approach to motorcycle engineering. This approach ensures that riding a Buell motorcycle is a fully satisfying experience, whether weaving through the city streets, taking on a tight corner on the track, or tackling off road terrain.

2010 Buell Highlights

2010 Buell 1125R
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2010 Buell 1125R

Out in the Street

For those looking for a bike with agile handling, as well as serious torque and acceleration for real urban power, MY10 sees the introduction of the new Lightning® CityX XB12SX. Receiving its debut in Europe, the XB12SX marries the sheer power of the Thunderstorm™ 1203cc V-Twin engine with Buell’s popular Lightning CityX XB9SX chassis and suspension, inspired by the needs of today’s urban rider. Delivering a whopping 104 Nm/ 77 ft lbs of torque, the bike is available in Valencia Orange Translucent & Hero Blue Translucent, both with black wheels.

Meanwhile the Lightning® CityX XB9SX, is readier than ever for a street fight, with the broad, smooth power of its Thunderstorm™ 984 V-Twin engine, wind deflectors, frame pucks, headlight grille, airbox cover X-guard and new Designer Black wheels. Features such as the upright rider position, wide Supermoto style handle bars and intuitive handling help the Lightning CityX XB9SX and XB12SX dodge through back streets and effortlessly pull away from the traffic – enabling the ultimate urban riding experience.

Buell® XB Lightning® streetfighters, powered by an air/oil/fan-cooled Thunderstorm V-Twin engine, have a ferocious look with new airbox cover graphics added to blacked-out frame, forks, engine and other components. Lightning XB models receive new oxygen sensor with updated calibration, fuel pump and sensor, front brake piston seal and LED taillight, and front and rear turn signals. The XB12Ss with supermoto-inspired long suspension has size, comfort and convenience, and the Lightning® XB12Scg road-hugging suspension for a low centre of gravity.

As a modern café racer, the Buell® 1125CR™ motorcycle is powered by a 146-hp, liquid-cooled Helicon® 1125 V-Twin engine with Buell Intuitive Response Chassis (IRC), new upright tapered aluminium streetfighter handlebar, and new graphics to deliver top sportbike handling in style. Final-drive gearing optimises acceleration and performance, along with new water pump bearing, front brake piston seals and rear wheel bearings and axle. The 1125CR will be available in Arctic White, Midnight Black or new Racing Red bodywork.

Taking it to the Track

2010 Buell 1125R
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2010 Buell 1125R

Whether on the street or the track, Buell® sportbikes are engineered for high levels of performance and handling – providing a ride no less exhilarating than a bike built specifically for racing. This is perfectly illustrated by the Buell® 1125R™. European sport performance riders will see more of this convention-breaking, large capacity sport motorcycle in 2010. With its 72 degree liquid-cooled V-Twin 1125cc BRP-Rotax® engine – exclusively designed to Buell specifications; all-new Buell IRC (Intuitive Response Chassis) - the stiffest chassis ever offered by Buell; Quiet Zone™ aerodynamics; and fully-adjustable Showa® piggyback suspension, the 1125R™ motorcycle offers power, torque, handling and agility that takes its owner to a new level of riding experience. Available in Arctic White, Racing Red or Midnight Black bodywork and with distinctive styling that leaves many of its mechanical components exposed, the bike has a uniquely aggressive look. This is further enhanced by an athletic riding position allowing for unparalleled comfort whilst in pursuit of superior street or track performance.

On and off road

The sport-touring Buell® Ulysses® XB12XT and the versatile, all-road Ulysses® XB12X are equally exhilarating rides in the Buell Adventure Sportbike category. Both Ulysses models feature a new right-side air scoop, fan shroud, header shield, and ECM calibration that work together to reduce heat and improve rider comfort.

Light and agile on any kind of road, the Ulysses XB12X is equipped with a broad, usable Thunderstorm™ 1203cc V-Twin engine, rugged protective features like frame pucks, headlight grille and wind deflectors. The XB12X has a new blacked out Phantom Metallic frame, swingarm, and footrest supports, and triple clamps, as well as new Sunfire Yellow bodywork and smoked windscreen. The Ulysses XB12XT is ready to carve the continents on new Pirelli® Angel ST tyres with side and top cases, heated grips and a tall windscreen. Both Ulysses models feature the patented Triple Tail™ system that adjusts between three functional positions.


2010 Buell 1125R
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2010 Buell 1125R

Engine and Transmission

Engine Helicon, Liquid-cooled, 4-stroke, 72 V-Twin
Displacement 68.7 cu in (1,126 cc)
Bore 4.055 in. (103 mm)
Stroke 2.658 in. (67.51 mm)
Peak Torque per SAE J607, North America 82 ft-lb (111 Nm)
Peak Torque RPM per SAE J607, North America 8,000
Peak Horsepower per SAE J607, North America 146 hp (109 kW)
Peak Horsepower RPM per SAE J607, North America 9,800
Compression Ratio 12.3:1
Mileage per US EPA Urban Trace, CITY6 39 mpg (6 l/100 km)
Mileage per US EPA HIGHWAY Fuel Economy Test6 53 mpg (4.4 l/100 km)
Intake Zero-resisitance airbox, Pressurized RAM air intake

Primary Drive Type Helical gear
Primary Drive Ratio 1.806:1 (65/36)
Secondary Drive Type7 Belt
Secondary Drive Member Pitch Length (# of Teeth or # of Links) 145 tooth belt, 14mm pitch
Secondary Drive Ratio 2.593:1 (70/27)
Transmission type 6-speed, straight cut gears
Transmission Ratio, 1st 2.462
Transmission Ratio, 2nd 1.75
Transmission Ratio, 3rd 1.381
Transmission Ratio, 4th 1.174
Transmission Ratio, 5th 1.042
Transmission Ratio, 6th 0.96

Chassis and Dimensions

Front Brake ZTL-2 braking system
Front Rotor and Caliper Configuration 8-piston ZTL2 front caliper from Nissin
Front Rotor Size, OD 14.76 in. (375 mm)
Number of Front Brake Rotors 1
Rear Brake Two-piston, direct mount caliper, 240mm, stainless steel, fixed rotor
Rear Rotor and Caliper Configuration Same rotor as XB. Rear caliper is new solid mounted 2-piston design from Hayes
Rear Rotor Size, OD 9.45 in. (240 mm)
Rear Suspension Type and Configuration Fully adjustable (adjustable compression damping, rebound damping and spring preload), coil-over monoshock with attached reservoir.
Front Suspension Type and Configuration Fully adjustable (adjustable compression damping, rebound damping and spring preload) inverted forks.
Front Fork Slider Tube Diameter 1.85 in. (47 mm)
Fork Lock Availability (true or false) True
Suspension Travel, Front Wheel, Along Fork Line 4.72 in. (120 mm)
Suspension Travel, Rear Wheel, Vertical 5 in. (127 mm)

Lean Angle at Full Suspension Compression, Soft Contact, Left (degrees)8
Lean Angle at Full Suspension Compression, Soft Contact, Right (degrees)8
Lean Angle at Full Suspension Compression, Hard Contact, Left (degrees)8
Lean Angle at Full Suspension Compression, Hard Contact, Right (degrees)8

Frame Aluminum, fuel in frame, IRC or Intuitive Response Chassis
Swingarm Description A new cast- aluminum swing arm

Overall Length2 80.3 in. (2,040 mm)
Seat Height, Laden3 30.5 in. (775 mm)
Seat Height, Unladen 31.9 in. (810 mm)
Overall Width without mirrors4 28.2 in. (716 mm)
Ground Clearance, Unladen2 4.92 in. (125 mm)
Rake (Steering Head Angle) at Ride Height (degrees) 21
Fork Angle at Ride Height (degrees) 21
Trail at Ride Height 3.3 in. (84 mm)
Wheelbase, Unladen 54.1 in. (1,374 mm)
Fuel Capacity, Total 5.3 gal. (20.1 l)
Fuel Capacity 0.8 gal. (3 l)
Oil Capacity5 3.3 qt. (3.1 l)
Dry Weight 375 lb. (170 kg)
Gross Vehicle Weight Rating 850 lb. (386 kg)
Load Carrying Capacity 390 lb. (177 kg)

Wheels and Tires

Tire Brand and Model, Front Pirelli Corsa III
Tire Brand and Model, Rear Pirelli Corsa III
Tire Size Designator, Front 120/70 ZR-17
Tire Size Designator, Rear 180/55 ZR-17
Wheel Type, Front 6-spoke, ZTL cast aluminum
Wheel Type, Rear 6-spoke, cast aluminum
Wheel Size, Front (width x dia) (in) 3.5 in x 17 in
Wheel Size, Rear (width x dia) (in) 5.5 in x 17 in


Battery Type and Specifications Sealed Lead Acid, maintenance-free, 12-volt, 12 amp-hour (per Battery Council International rating), 200 cca.
Charging System Specifications 37-amp, permanent magnet, three-phase alternator with solid-state regulator (520W peak power)
Starter System Specifications Starter motor 900W, starter drive (gears) and one way clutch.
Headlamp Type and Wattages (high, low and position lamp) Low beam - 2 bulbs at 35 Watts each (70W) , High beam is the low beam bulbs plus 2 more bulbs at 35 W each (140w), poistion indicators are on at all times - 2 bulbs at 5w each (80W and 150W).
Tail Light Wattages (stop and running) .55W for tail light, 5W for stop light
Turn Signal Lights Type (manual or self-canceling) and Wattage Manual cancelling, Front = non-serviceable LED’s. 3W (per side), Rear = replaceable bulbs, 10W (per side).
License Plate Lamp Wattage 5W


Windscreen or Flyscreen Clear windscreen
Warranty Term9 2-years


Body Work (molded in color) Midnight Black, Racing Red, Acrtic White
Frame Phantom Metallic
Wheels Designer Black for all models

Color Options

Midnight Black, Racing Red, Arctic White


Midnight Black $12,499
Racing Red $12,499
Arctic White $12,499

Model Highlights

2010 Buell 1125R
- image 316717
2010 Buell 1125R
  • New Polished stainless steel headers
  • New Master cylinder piston seals for improved brake feel
  • New Engine cover sight glass for convenient oil-level checks
  • New Pre-wired battery tender harness
  • New Black upper triple clamp and fuel cap
  • New Designer Black wheels
  • New LED taillight
  • New Clear-lens rear turn signals
  • New Bodywork graphics and fly cut brake logos
  • New Available lower fairing kit (Accessory)
  • Buell® ZTL2™ four-pad, eight-piston front brake
  • Two-piston rear brake caliper mounted directly to inner swingarm
  • Brushed stainless steel exhaust outlets
  • Clip-on style handlebar
  • LED front turn signals integrated with mirrors
  • Digital lap timer and gear indicator
  • Quiet Zone aerodynamics to optimize air flow around the rider
  • Removable tail cowl over passenger seat
  • An athletic riding position with a relaxed foot-peg location provides control on the track and comfort on the street
  • Key Features

    2010 Buell 1125R
- image 316720
    2010 Buell 1125R
  • Buell Helicon® 1125cc liquid-cooled fourstroke, 72-degree V-Twin engine with DDFI 3 Electronic Fuel Injection ECM
  • Compact oblique stacked six-speed transmission configuration
  • Ram-air pressurized air box
  • Goodyear® Hibrex final drive belt with Flexten Plus technology with a constant-tension pulley for smoother on/off throttle transitions
  • Underslung muffler with Helmholtz chamber
  • Twin side-mount radiators with outer covers designed to absorb impact
  • HVA (Hydraulic Vacuum Assist) clutch with slipper action
  • 6-spoke, cast aluminum wheels
  • Pirelli Diablo Corsa III tires
  • Steel braided brake lines
  • Fully adjustable 47 mm Showa® inverted fork
  • Fully adjustable Showa® rear shock absorber
  • Fuel-in Frame Intuitive Response Chassis
  • Rigid cast-aluminum swingarm
  • Adjustable hand and foot controls
  • Maxx Biker
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