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MotoLibrary Score
42/100Commuter
Power/Weight
0.21 hp/kg
Torque
37 Nm
Engine
652 ccm
Technical Overview
2009 CR&S VUN Road Depowered Technical Analysis & Specification Breakdown
Built around CR&S's naked motorcycle platform, the 2009 CR&S VUN Road Depowered features a 652 cc (39.8 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 28.2 HP (20.6 kW) at 6,000 rpm while maximum torque reaches 37 Nm (27.3 lb-ft) at 4,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 43.3 HP per liter and a 2,000 rpm working window between peak torque (4,000 rpm) and peak power (6,000 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the VUN Road Depowered measures 135 kg (298 lbs) dry, translating to a power-to-weight ratio of 0.21 HP/kg (4.79 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 1,368 mm (53.9 in) wheelbase engineered for quick, flickable steering geometry. The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
43.3 HP/L
Power-to-Weight
0.21 HP/kg (4.79 kg/HP)
Power Band Window
4,000–6,000 rpm
Standover Height
800 mm (31.5 in)
Engine
Displacement652.0 ccm (39.79 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power28.2 HP (20.6 kW)) @ 6000 RPM
Torque37.0 Nm (3.8 kgf-m or 27.3 ft.lbs) @ 4000 RPM
Compression9.7:1
Bore x Stroke100.0 x 83.0 mm (3.9 x 3.3 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchMultiple disc wet clutch
Chassis
Frame TypeSteel tubes and machined light alloy plates compound
Front SuspensionHydraulic fork
Front Travel120 mm (4.7 inches)
Rear SuspensionOscillating swingarm, single shock absorber
Rear Travel128 mm (5.0 inches)
Wheelbase1368 mm (53.9 inches)
Ground Clearance150 mm (5.9 inches)
Wheels & Brakes
Front Tyre120/70-ZR17
Rear Tyre160/60-ZR17
Front BrakesSingle disc
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Dry Weight135.0 kg (297.6 pounds)
Power/Weight0.2086 HP/kg
Seat Height800 mm (31.5 inches) If adjustable, lowest setting.
Overall Length1980 mm (78.0 inches)
Fuel Capacity14.00 litres (3.70 US gallons)
Oil Capacity3.50 litres (3.7 US quarts)
Other
StarterElectric
Notes
CR and S is an abbreviation of Cafe Racers and Superbikes. Reduced effect model.
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.
