At the heart of the 2005 MZ Mastiff naked motorcycle, MZ utilizes a 660 cc (40.3 cu in) single cylinder, four-stroke layout. In factory specification, peak output is rated at 37 HP (27 kW) at 6,500 rpm while maximum torque reaches 57 Nm (42 lb-ft) at 5,250 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 56.1 HP per liter and a 1,250 rpm working window between peak torque (5,250 rpm) and peak power (6,500 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the Mastiff measures 175 kg (386 lbs) dry, translating to a power-to-weight ratio of 0.21 HP/kg (4.73 kg per horsepower). Rider ergonomics and chassis geometry center around a 830 mm (32.7 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,465 mm (57.7 in) wheelbase engineered for balanced agility and highway composure. The 12.5-liter (3.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 266 km/h (165 mph).
Within MotoLibrary's MZ archive, this model family spans 3 indexed model years from 2001 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
56.1 HP/L
Power-to-Weight
0.21 HP/kg (4.73 kg/HP)
Power Band Window
5,250–6,500 rpm
Standover Height
830 mm (32.7 in)
Engine
Displacement660.0 ccm (40.27 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power37.0 HP (27.0 kW)) @ 6500 RPM
Torque57.0 Nm (5.8 kgf-m or 42.0 ft.lbs) @ 5250 RPM
Transmission
Final DriveChain (final drive)
Performance
Top Speed265.5 km/h (165.0 mph)
Chassis
Front SuspensionTelescopic fork
Rear SuspensionAdjustable rear monoshock
Wheelbase1465 mm (57.7 inches)
Wheels & Brakes
Front Tyre120/60-17
Rear Tyre150/60-17
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight175.0 kg (385.8 pounds)
Power/Weight0.2114 HP/kg
Seat Height830 mm (32.7 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.