Positioned in Yamaha's naked motorcycle lineup, the 2002 Yamaha BT 1100 Bulldog pairs a 1063 cc (64.9 cu in) air-cooled v2, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 65 HP (47.4 kW) at 5,500 rpm while maximum torque reaches 88.2 Nm (65.1 lb-ft) at 4,500 rpm. With a specific output of 61.1 HP per liter and a 1,000 rpm working window between peak torque (4,500 rpm) and peak power (5,500 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the BT 1100 Bulldog measures 229.5 kg (506 lbs) dry, translating to a power-to-weight ratio of 0.28 HP/kg (3.53 kg per horsepower). Rider ergonomics and chassis geometry center around a 812 mm (32 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,530 mm (60.2 in) wheelbase engineered for planted straight-line stability.
Within MotoLibrary's Yamaha archive, this model family spans 4 indexed model years from 2002 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
61.1 HP/L
Power-to-Weight
0.28 HP/kg (3.53 kg/HP)
Power Band Window
4,500–5,500 rpm
Standover Height
812 mm (32 in)
Engine
Displacement1063.0 ccm (64.86 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Power65.0 HP (47.4 kW)) @ 5500 RPM
Torque88.2 Nm (9.0 kgf-m or 65.1 ft.lbs) @ 4500 RPM
Compression8.3:1
Bore x Stroke95.0 x 75.0 mm (3.7 x 3.0 inches)
Fuel ControlSingle Overhead Cams (SOHC)
CoolingAir
Chassis
Front Travel130 mm (5.1 inches)
Rear Travel113 mm (4.4 inches)
Wheelbase1530 mm (60.2 inches)
Ground Clearance168 mm (6.6 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre170/60-ZR17
Front BrakesDual disc
Front Brake Ø298 mm (11.7 inches)
Rear BrakesSingle disc
Rear Brake Ø282 mm (11.1 inches)
Dimensions & Weight
Dry Weight229.5 kg (506.0 pounds)
Power/Weight0.2832 HP/kg
Seat Height812 mm (32.0 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.