Sportbikes
2009Buell 1125R
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The 2009 Buell 1125R is a middleweight sport bike built for riders seeking aggressive performance and distinctive American engineering. Its 1125cc liquid-cooled V-twin delivers 146 horsepower with strong low-end torque, offering nimble handling and exciting acceleration for street and track enthusiasts who appreciate unconventional character.
- Capacity
- 1125.0 ccm
- Engine
- V-Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 170.1 kg
- Seat height
- 775 mm
- Power
- 146.2 HP (109.0 kW) @ 9800 RPM
What’s new for the 2009 Buell 1125R
vs the 2008| Spec | 2008 | 2009 |
|---|---|---|
| Fuel capacity | 21.20 litres (5.60 US gallons) | 20.10 litres (5.31 US gallons) |
| Rear suspension | Showa coil over monoshock with adjustable compression damping, rebound damping and spring preload | Showa coil-over monoshock with external piggyback reservoir and adjustable compression damping, rebound damping and spring preload |
| Front brakes | Single disc. 8-piston calipers | Single disc. ZTL2-type brake, 8-piston, 4 pads, fixed caliper, single-sided, inside out, stainless steel, floating rotor |
| Rear brakes | Single disc. 2-piston calipers | Single disc. Two-piston, direct mount caliper; stainless steel, fixed rotor |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily for aggressive cornering and track-day performance, with its steep rake, mass-centralized design, and high-spec brakes prioritizing agility over outright top speed.
- Built for
- It has a raw, mechanical, torquey personality distinct from inline-four sportbikes, rewarding riders who enjoy unique engineering and strong mid-range punch.
- Not ideal for
- This is not a good choice for beginners, long-distance tourers, passengers seeking comfort, or anyone wanting a plush, relaxed ride.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 1125.0 ccm
- Power
- 146.2 HP (109.0 kW) @ 9800 RPM
- Torque
- 111.2 Nm (11.3 kgf-m)
- Engine type
- V-Twin, four-stroke
- Power/weight ratio
- 0.8595 HP/kg (dry)
- Bore x stroke
- 103.0 x 67.5 mm
- Compression
- 12.3:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Dry-sump with integrated oil reservoir in lower crankcase
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Belt
- Clutch
- Wet, multi-plate, Hydraulic Vacuum Assist (HVA) Slipper Action Clutch, hydraulic clutch lever effort
Dimensions & weight
- Wheelbase
- 1387 mm
- Overall length
- 1996 mm
- Overall width
- 716 mm
- Seat height
- 775 mm
- Dry weight
- 170.1 kg
- Fuel capacity
- 20.10 litres
- Ground clearance
- 114 mm
- Oil capacity
- 3.10 litres
Chassis & suspension
- Frame
- Black aluminium frame, fuel in frame
- Front suspension
- 47 mm Showa inverted forks with adjustable compression damping, rebound damping and spring preload
- Rear suspension
- Showa coil-over monoshock with external piggyback reservoir and adjustable compression damping, rebound damping and spring preload
- Front wheel travel
- 120 mm
- Rear wheel travel
- 127 mm
- Rake (fork angle)
- 21.0°
- Trail
- 84 mm
Brakes & wheels
- Front brakes
- Single disc. ZTL2-type brake, 8-piston, 4 pads, fixed caliper, single-sided, inside out, stainless steel, floating rotor
- Front brakes diameter
- 375 mm
- Rear brakes
- Single disc. Two-piston, direct mount caliper; stainless steel, fixed rotor
- Rear brakes diameter
- 240 mm
- Front tyre
- 120/70-ZR17
- Rear tyre
- 180/55-ZR17
Other
- Color options
- Racing Red; Arctic White; Midnight Black;
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2008 | 2009 | 2010 |
|---|---|---|---|
| Capacity | 1125 cc | 1125 cc | 1125 cc |
| Dry weight | 170 kg | 170 kg | 170 kg |
| Seat height | 775 mm | 775 mm | 775 mm |
| Fuel capacity | 21.2 L | 20.1 L | 20 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Buell 1125R?
The 2009 Buell 1125R has a Capacity of 1125.0 ccm (68.65 cubic inches).
What engine power does the Buell 1125R have?
The 2009 Buell 1125R has a Power of 146.2 HP (109.0 kW) @ 9800 RPM.
How many gears does the Buell 1125R have?
The 2009 Buell 1125R has a Gearbox of 6-speed.
What is the torque of the Buell 1125R?
The 2009 Buell 1125R has a Torque of 111.2 Nm (11.3 kgf-m or 82.0 ft.lbs).
How much does the Buell 1125R weigh?
The 2009 Buell 1125R has a Dry weight of 170.1 kg (375.0 pounds).
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