2003Yamaha BT 1100 Bulldog

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The 2003 Yamaha BT 1100 Bulldog is a retro-styled naked bike powered by a 1063cc V-twin engine delivering 64 horsepower and strong 81.4 Nm torque. Built for experienced riders seeking character and cruising comfort, it excels as a versatile middleweight combining classic aesthetics with practical everyday usability and a spacious fuel tank.

Capacity: 1063.0 ccm
Engine: V-Twin
Gearbox: 5-speed
Dry weight: 229.0 kg
Seat height: 812 mm
Power: 64.0 HP (47.1 kW) @ 5500 RPM

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What’s new for the 2003 Yamaha BT 1100 Bulldog

vs the 2002

Spec	2002	2003
Power	65.0 HP (47.8 kW)	64.0 HP (47.1 kW) @ 5500 RPM
Torque	88.2 Nm (9.0 kgf-m or 65.1 ft.lbs)	81.4 Nm (8.3 kgf-m or 60.0 ft.lbs)
Front brakes	Dual disc	not listed

Other years 2002 2003 2004 2005 2006

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail10%

Cornering55%

City riding60%

Daily riding65%

Touring45%

Two-up45%

Track25%

Best for: Best suited to relaxed street riding, weekend cruising, and short trips rather than aggressive sport riding or long-haul touring.
Built for: A laid-back, air-cooled V-twin roadster that favors smooth torque delivery and classic naked-bike charm over sharp handling or high-revving excitement.
Not ideal for: Not a good fit for riders wanting sharp cornering agility, high top-end power, or serious off-road capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 812mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2003 Yamaha BT 1100 Bulldog, with a relaxed knee angle of around 130 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 →

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Full specifications

Engine

Capacity: 1063.0 ccm
Power: 64.0 HP (47.1 kW) @ 5500 RPM
Torque: 81.4 Nm (8.3 kgf-m)
Engine type: V-Twin
Power/weight ratio: 0.2795 HP/kg (dry)
Bore x stroke: 95.0 x 75.0 mm
Compression: 8.3:1
Cooling system: Air
Fuel system: Injection
Starting: Electric
Ignition: TCI
Valves per cylinder: 1
Lubrication system: Wet sump

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multiple-disc

Dimensions & weight

Wheelbase: 1530 mm
Overall length: 2196 mm
Overall width: 800 mm
Overall height: 1143 mm
Seat height: 812 mm
Dry weight: 229.0 kg
Fuel capacity: 20.00 litres
Ground clearance: 168 mm

Chassis & suspension

Front suspension: Telescopic fork
Rear suspension: Swing arm (link suspension)
Front wheel travel: 130 mm
Rear wheel travel: 113 mm

Brakes & wheels

Front brakes diameter: 298 mm
Rear brakes: Single disc
Front tyre: 120/70-ZR17
Rear tyre: 170/60-ZR17

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	2002	2003	2004	2005	2006
Capacity	1063 cc	1063 cc	1063 cc	1063 cc	1063 cc
Dry weight	230 kg	229 kg	230 kg	230 kg	233 kg
Seat height	812 mm	812 mm	812 mm	812 mm	812 mm
Fuel capacity	20 L	20 L	20 L	20 L	20 L