Engineered by Boom Trikes for the custom - cruiser motorcycle segment, the 2011 Boom Trikes Intruder 1800 utilizes a 1783 cc (108.8 cu in) liquid-cooled v2, four-stroke layout. In factory specification, peak output is rated at 103.3 HP (75.4 kW) at 5,200 rpm while maximum torque reaches 155 Nm (114.3 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 57.9 HP per liter and a 1,700 rpm working window between peak torque (3,500 rpm) and peak power (5,200 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the Intruder 1800 measures 500 kg (1102 lbs) dry, translating to a power-to-weight ratio of 0.21 HP/kg (4.84 kg per horsepower). The 37-liter (9.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 175 km/h (109 mph).
Within MotoLibrary's Boom Trikes archive, this model family spans 2 indexed model years from 2011 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
57.9 HP/L
Power-to-Weight
0.21 HP/kg (4.84 kg/HP)
Power Band Window
3,500–5,200 rpm
Engine
Displacement1783.0 ccm (108.80 cubic inches)
Engine TypeV2, four-stroke
Engine Details52°- V2-4-stroke engine with regulated catalyser
Power103.3 HP (75.4 kW)) @ 5200 RPM
Torque155.0 Nm (15.8 kgf-m or 114.3 ft.lbs) @ 3500 RPM
Compression10.5:1
Bore x Stroke112.0 x 90.5 mm (4.4 x 3.6 inches)
Fuel SystemInjection. PGM-FI-Injetion
IgnitionTransistor ignition
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveShaft drive (cardan) (final drive)
DrivelineShaft drive, differential
Performance
Top Speed175.0 km/h (108.7 mph)
ExhaustEquipment - Intruder 1800
Chassis
Front SuspensionOriginal fork with BOOM fork yokes, elongated at 6° with fork extension
Rear SuspensionAlloy semi trailing link axle with coilovers Independent suspension
Ground Clearance160 mm (6.3 inches)
Wheels & Brakes
Front Tyre150/80-16
Rear Tyre295/50-or15
Front BrakesDouble disc
Rear BrakesDouble disc
WheelsSilver painted alloy rim
Dimensions & Weight
Dry Weight500.0 kg (1,102.3 pounds)
Power/Weight0.2065 HP/kg
Overall Height1270 mm (50.0 inches)
Overall Length2510 mm (98.8 inches)
Overall Width1505 mm (59.3 inches)
Fuel Capacity37.00 litres (9.78 US gallons)
Other
StarterElectric
Color OptionsBlack, glossy
Carrying CapacityLuggage rack in polished stainless steel.
Notes
German moto-trike. Thunderbird og Ultimate versions. Car license.
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.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
