Leonhardt Gunbus 410 - 2010 Specifications and Reviews

The 2010 Leonhardt Gunbus 410 is an extreme cruiser built for riders seeking raw power and distinctive character. Its massive 6.7-liter V2 engine delivers 710 Nm of torque for commanding low-end grunt, while the minimalist three-speed transmission emphasizes simplicity. Known for its unconventional engineering and aggressive styling, it appeals to customization enthusiasts and those pursuing ultimate displacement over traditional performance metrics.

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General information

CategorySport
Year2010
ModelLeonhardt Gunbus 410

Engine and Transmission Specifications

Clutch3-disk, sintered metal dry clutch
Transmission type,final driveChain
Gearbox3-speed
Lubrication systemDry sump lubrication
Fuel systemInjection. 2 single throttle valves; 70 mm diameter
Bore x stroke176.0 x 156.0 mm (6.9 x 6.1 inches)
Compression8.7:1
Torque710.00 Nm (72.4 kgf-m or 523.7 ft.lbs) @ 1900
Engine typeV2, four-stroke
Capacity:6719.11 ccm (410.00 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakes diameter310 mm (12.2 inches)
Rear brakesSingle disc
Front brakes diameter310 mm (12.2 inches)
Front brakesDouble disc
Frame typeSteel tube frame; 25CrMo4; TIG welding
 
 

Physical measures and capacities

Wheelbase2,410 mm (94.9 inches)
Overall length3,450 mm (135.8 inches)
Overall height1,480 mm (58.3 inches)
Seat height800 mm (31.5 inches) If adjustable, lowest setting.
Dry weight650.0 kg (1,433.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

6.5s
0-60 mph (est.)

Best For

Track10%
City10%
Cornering15%
Daily Riding20%
Touring35%
Passenger30%

Rider Profile

Best ForThis is a machine for experienced, confident riders only, given its enormous 6.7-liter engine, 650kg dry weight, and unconventional 3-speed gearbox with a 38-inch front wheel; note this is an extreme novelty/custom-style build (the Gunbus 410, reportedly
PurposeBuilt as a rolling engineering spectacle and torque-monster cruiser, it exists to deliver a jaw-dropping, low-RPM grunt experience and turn heads rather than to be ridden hard or fast.
Rider FitRiders need real strength and low-speed balance skills to manage its massive weight, huge front wheel, and low-speed maneuvering, though the low 800mm seat height helps with reach to the ground.
CharacterIt has an outlaw, larger-than-life industrial character defined by thunderous low-end torque, a massive V-twin heartbeat, and a slow, deliberate, intimidating presence rather than outright speed.
Not Ideal ForThis is not for riders wanting agility, cornering finesse, off-road capability, or a conventional day-to-day commuter experience.

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

Rider Fit Visualizer

2010 Leonhardt Gunbus 410 Rider Ergonomics Assessment

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Feet:

At 800mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2010 Leonhardt Gunbus 410, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Data quality: measured. 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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