2008Buell 1125R

★ 4.0

41 fields on record

The 2008 Buell 1125R is a middleweight sport bike designed for riders seeking aggressive performance with American character. Powered by a potent 1125cc V-twin engine producing 146 horsepower, it delivers thrilling acceleration and nimble handling. Known for its compact wheelbase and innovative engineering, the 1125R represents Buell's commitment to high-revving sport bike dynamics.

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

⇄ Compare with another bike ＋ Add to garage All model years

Other years 2008 2009 2010

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering93%

City riding45%

Daily riding40%

Touring30%

Two-up25%

Track88%

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 us

Your height

Inseam (optional)

Units

At 775mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2008 Buell 1125R, with a cramped knee angle of around 65 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

Find bikes that fit your height →

Full specifications

Engine

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

Performance

0-60 mph: 3.15 seconds

Dimensions & weight

Wheelbase: 1387 mm
Overall length: 1996 mm
Overall width: 716 mm
Seat height: 775 mm
Dry weight: 170.1 kg
Fuel capacity: 21.20 litres
Ground clearance: 114 mm
Oil capacity: 3.10 litres

Chassis & suspension

Frame: Aluminum 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 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