Positioned in Enfield's classic motorcycle lineup, the 2007 Enfield Thunderbird utilizes a 346 cc (21.1 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 18 HP (13.1 kW) at 5,600 rpm while maximum torque reaches 27.5 Nm (20.3 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 52 HP per liter and a 2,100 rpm working window between peak torque (3,500 rpm) and peak power (5,600 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the Thunderbird measures 163 kg (359 lbs) dry, translating to a power-to-weight ratio of 0.11 HP/kg (9.06 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,370 mm (53.9 in) wheelbase engineered for quick, flickable steering geometry. The 14.5-liter (3.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 110 km/h (68 mph).
Specific Output
52 HP/L
Power-to-Weight
0.11 HP/kg (9.06 kg/HP)
Power Band Window
3,500–5,600 rpm
Engine
Displacement346.0 ccm (21.11 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power18.0 HP (13.1 kW)) @ 5600 RPM
Torque27.5 Nm (2.8 kgf-m or 20.3 ft.lbs) @ 3500 RPM
Compression7.3:1
Bore x Stroke70.0 x 90.0 mm (2.8 x 3.5 inches)
Fuel SystemCarburettor. CV
Fuel ControlOverhead Valves (OHV)
IgnitionDigital TCI
LubricationDry sump
CoolingAir
Transmission
Gearbox4-speed
Final DriveChain (final drive)
ClutchWet mulitiplate
Performance
Top Speed110.0 km/h (68.4 mph)
Chassis
Wheelbase1370 mm (53.9 inches)
Ground Clearance140 mm (5.5 inches)
Wheels & Brakes
Front BrakesExpanding brake (drum brake)
Front Brake Ø178 mm (7.0 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø152 mm (6.0 inches)
Dimensions & Weight
Dry Weight163.0 kg (359.4 pounds)
Power/Weight0.1104 HP/kg
Fuel Capacity14.50 litres (3.83 US gallons)
Other
StarterKick
Color OptionsBlack, red
Notes
Available in India. Optional electric starter and front disk brake.
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.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
