Boom Trikes Sportster - 2011 Specifications and Reviews

The 2011 Boom Trikes Sportster is a three-wheeled cruiser designed for riders seeking stability and comfort without sacrificing classic styling. Its low seat height and wide stance appeal to riders preferring accessible, planted handling on longer journeys. Known for its independent rear suspension and robust braking system, it delivers a smooth ride while maintaining the iconic Sportster aesthetic.

2011
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General information

CategoryCustom / cruiser
Year2011
ModelBoom Trikes Sportster
 
 

Engine and Transmission Specifications

DrivelineGear belt / differential
Gearbox5-speed
Cooling systemAir
Fuel systemInjection. EFI
Bore x stroke76.2 x 96.8 mm (3.0 x 3.8 inches)
Compression10.5:1
Top speed140.0 km/h (87.0 mph)
Torque70.00 Nm (7.1 kgf-m or 51.6 ft.lbs) @ 3750
Power52.30
Engine detailsAir-cooled, Evolution engine. Optional 1200 ccm engine
Engine typeV2, four-stroke
Capacity:883.00 ccm (53.88 cubic inches)

Brakes, suspension, Frame and wheels

WheelsFront tyre as original Sportster tyre
Rear brakesDouble disc
Front brakesSingle disc
Rear tyre dimensions255/40-17
Rear suspensionBOOM-Alloy-semitrailing link axle/ independent suspension Bilstein damper
Front suspensionTelescopic Fork with elongated BOOM fork crowns
 
 

Physical measures and capacities

Fuel capacity16.00 litres (4.23 gallons)
Ground clearance160 mm (6.3 inches)
Overall width1,300 mm (51.2 inches)
Overall length2,540 mm (100.0 inches)
Overall height1,115 mm (43.9 inches)
Alternate seat height710 mm (28.0 inches) If adjustable, highest setting.
Seat height650 mm (25.6 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc430.0 kg (948.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Carrying capacity56 l Back-case
Seat2 seats
StarterElectric

Performance Profile & Rider Fit

52.3 hp
Peak Power
9.5s
0-60 mph
87 mph
Top Speed

Best For

Track5%
City40%
Cornering20%
Daily Riding45%
Touring55%
Passenger65%

Rider Profile

Best ForThis trike suits riders who already have solid two-wheeled or trike experience, since a 430kg three-wheeled machine handles very differently from a standard motorcycle.
PurposeIt's built for relaxed cruising and boulevard presence rather than outright speed or sporty handling, leveraging the classic Sportster V-twin character in a stable three-wheel platform.
Rider FitThe low seat height and trike stability make it accessible to riders who may struggle with balancing a heavy conventional cruiser, though the sheer width and length demand confident low-speed maneuvering.
CharacterIt has a laid-back, torquey, air-cooled V-twin personality wrapped in a custom trike format meant to be seen and enjoyed rather than ridden aggressively.
Not Ideal ForThis is not the machine for riders seeking quick acceleration, sharp cornering, or any kind of off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2011 Boom Trikes Sportster Rider Ergonomics Assessment

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Feet:

At 650mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2011 Boom Trikes Sportster, with a cramped knee angle of around 70 degrees and an upright riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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