Boss Hoss BHC-3 ZZ4

Boss Hoss BHC-3 ZZ4

Most people don't know what to make of a Boss Hoss motorcycle, and if they do, they're probably wrong. Unwieldy. Intimidating. Homebuilt. Bizarre. Absurd. Those are the adjectives that seem to come to mind when you see one of these V-8 powered behemoths thunder down the street.

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Model year
2005
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Engine Power
352.28 HP (259.1 kW) @ 5200 rpm
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Curb Weight
633 kg

Technical Specifications

Engine and transmission

  • Engine type:
    8 cylinders, 4-stroke, V8
  • Displacement:
    5700 cc (348.27 cubic inches)
  • Cooling system:
    Water cooled
  • Power:
    352.28 HP (259.1 kW) @ 5200 rpm
  • Torque:
    567 Nm (57.82 kg-m) @ 4200 rpm
  • Valves
    Valves per cylinder:
    4
  • Fuel and ignition
    Sparks per cylinder:
    1
    Fuel supply system:
    Carburetor
    Funnel diameter:
    850 mm
  • Compression:
    10:1
  • Engine mounting:
    Transverse
  • Lubrication system:
    Wet sump
  • Gear box:
    Manual
  • Clutch:
    Wet, slipper, cable operated
  • Final drive:
    Belt
  • Motor oil:
    Synthetic
  • Starter:
    Electric

Dimensions

  • Physical measures
    Width:
    711 mm
  • Wheel base:
    2032 mm
  • Ground clearance:
    114 mm
  • Seat height:
    711 mm
  • Weight
    Curb weight:
    633 kg
    Dry weight:
    499 kg

Chassis and suspension

  • Frame type:
    steel, Backbone frame
  • Front
    Suspension:
    Cartridge - upside-down
    Fork angle:
    33°
    Brake:
    Single Disk, Ø320 mm
    Tire:
    130 / 90 R16
  • Rear
    Suspension:
    twin shock, Swingarm
    Brake:
    Disk, Ø320 mm
    Tire:
    230 / 60 R15

Other

  • ABS available:
    No
  • Power-to-weight ratio:
    0.41 HP/kg (2.44 kg/HP)
  • Fuel capacity:
    32.17 l
  • Number of riders:
    2 persons

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