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MotoLibrary Score
100/100Exceptional
Power
445 HP
Torque
603 Nm
Engine
6200 ccm
Technical Overview
2020 Boss Hoss Limited SS Big Block Technical Analysis & Specification Breakdown
Engineered by Boss for the custom - cruiser motorcycle segment, the 2020 Boss Hoss Limited SS Big Block pairs a 6200 cc (378.3 cu in) liquid-cooled v8, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 445 HP (324.8 kW) while maximum torque reaches 603.4 Nm (445.1 lb-ft) at 4,750 rpm, transferring power to the rear wheel through a 2-speed gearbox and belt final drive. With a specific output of 71.8 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
Rider ergonomics and chassis geometry center around a 673 mm (26.5 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 8.71 L/100 km provides an estimated theoretical range of roughly 369 km (229 miles) between fill-ups.
Specific Output
71.8 HP/L
Theoretical Range
~369 km (229 mi)
Engine
Displacement6200.0 ccm (378.32 cubic inches)
Engine TypeV8, four-stroke
Power445.0 HP (324.8 kW))
Torque603.4 Nm (61.5 kgf-m or 445.1 ft.lbs) @ 4750 RPM
CoolingLiquid
Transmission
Gearbox2-speed
Final DriveBelt (final drive)
Performance
Fuel Consumption8.71 litres/100 km (11.5 km/l or 27.01 mpg)
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.
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.
