2009 Boss Hoss BHC-3 ZZ4 Technical Analysis & Specification Breakdown
Positioned in Boss Hoss's custom - cruiser motorcycle lineup, the 2009 Boss Hoss BHC-3 ZZ4 relies on a 5700 cc (347.8 cu in) liquid-cooled v8, four-stroke powerplant. In factory specification, peak output is rated at 355 HP (259.1 kW) at 5,250 rpm while maximum torque reaches 549.2 Nm (405.1 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 62.3 HP per liter and a 1,750 rpm working window between peak torque (3,500 rpm) and peak power (5,250 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 BHC-3 ZZ4 measures 503.5 kg (1110 lbs) dry, translating to a power-to-weight ratio of 0.71 HP/kg (1.42 kg per horsepower). Rider ergonomics and chassis geometry center around a 711 mm (28 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 2,032 mm (80 in) wheelbase engineered for planted straight-line stability. The 32.17-liter (8.5 US gal) fuel tank paired with a rated consumption of 10.45 L/100 km provides an estimated theoretical range of roughly 308 km (191 miles) between fill-ups.
Within MotoLibrary's Boss Hoss archive, this model family spans 7 indexed model years from 2005 to 2011, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
62.3 HP/L
Power-to-Weight
0.71 HP/kg (1.42 kg/HP)
Power Band Window
3,500–5,250 rpm
Theoretical Range
~308 km (191 mi)
Engine
Displacement5700.0 ccm (347.81 cubic inches)
Engine TypeV8, four-stroke
Engine DetailsV8, four-stroke
Power355.0 HP (259.1 kW)) @ 5250 RPM
Torque549.2 Nm (56.0 kgf-m or 405.1 ft.lbs) @ 3500 RPM
Compression10.0:1
Fuel SystemInjection. Holly 680 cfm Throttle Body
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
Performance
Fuel Consumption10.45 litres/100 km (9.6 km/l or 22.51 mpg)
Greenhouse Gases242.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Exhaust2.5 inch with dual mufflers
Chassis
Rake33.0°
Front SuspensionInverted forks
Rear SuspensionDual 13.0 inch coilover shocks
Wheelbase2032 mm (80.0 inches)
Ground Clearance114 mm (4.5 inches)
Wheels & Brakes
Front Tyre130/90-16
Rear Tyre230/60-15
Front BrakesDouble disc. Floating disc, 4-piston calipers
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.
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.