Engineered by Serpento for the enduro - offroad motorcycle segment, the 2020 Serpento Defender 150 pairs a 149.6 cc (9.1 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 9.7 HP (7.1 kW) at 8,000 rpm while maximum torque reaches 10 Nm (7.4 lb-ft), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 64.8 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Defender 150 measures 105 kg (231 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (10.82 kg per horsepower). Rider ergonomics and chassis geometry center around a 820 mm (32.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,930 mm (76 in) wheelbase engineered for planted straight-line stability. The 5.5-liter (1.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
64.8 HP/L
Power-to-Weight
0.09 HP/kg (10.82 kg/HP)
Standover Height
820 mm (32.3 in)
Engine
Displacement149.6 ccm (9.13 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power9.7 HP (7.1 kW)) @ 8000 RPM
Torque10.0 Nm (1.0 kgf-m or 7.4 ft.lbs)
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet multi-plate
Chassis
Front SuspensionTelescopic fork
Rear SuspensionMonoshock
Wheelbase1930 mm (76.0 inches)
Wheels & Brakes
Front Tyre70/100-19
Rear Tyre90/100-16
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight105.0 kg (231.5 pounds)
Power/Weight0.0924 HP/kg
Seat Height820 mm (32.3 inches) If adjustable, lowest setting.
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.
