At the heart of the 2008 Ducati Monster S4R Testastretta naked motorcycle, Ducati utilizes a 998 cc (60.9 cu in) liquid-cooled v2, four-stroke layout. In factory specification, peak output is rated at 128.3 HP (93.7 kW) at 9,500 rpm while maximum torque reaches 103.9 Nm (76.6 lb-ft) at 10,600 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 128.6 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the Monster S4R Testastretta measures 177 kg (390 lbs) dry, translating to a power-to-weight ratio of 0.72 HP/kg (1.38 kg per horsepower). Rider ergonomics and chassis geometry center around a 800 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,440 mm (56.7 in) wheelbase engineered for balanced agility and highway composure. The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Ducati archive, this model family spans 2 indexed model years from 2007 to 2008, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
128.6 HP/L
Power-to-Weight
0.72 HP/kg (1.38 kg/HP)
Standover Height
800 mm (31.5 in)
Engine
Displacement998.0 ccm (60.90 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Power128.3 HP (93.7 kW)) @ 9500 RPM
Torque103.9 Nm (10.6 kgf-m or 76.6 ft.lbs) @ 10600 RPM
Compression11.4:1
Bore x Stroke100.0 x 63.5 mm (3.9 x 2.5 inches)
Valves/Cylinder4
Fuel SystemInjection. Marelli electronic fuel injection, 50mm throttle body
Fuel ControlDesmodromic valve control
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchDry multiplate with hydraulic control
Performance
Exhaust2 aluminium mufflers
Chassis
Frame TypeTubular steel trellis frame
Rake24.0°
Front SuspensionShowa 43 mm fully adjustable upside-down fork
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.
