These are the known mechanical and performance specifications for your 2007 CR&S VUN Underpowered.
Basic Specs

Engine
Displacement652.00 ccm (39.79 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression9.7:1
Bore/Stroke100.0 x 83.0 mm (3.9 x 3.3 inches)
Valves/Cylinder4
FuelingInjection. Walbro integrated
Ignition
Exhaust
LubricationDry sump
CoolingLiquid
Performance
Horespower29.00 HP (21.2 kW)
Torque37.00 Nm (3.8 kgf-m or 27.3 ft.lbs)
Top Speed
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity14.00 litres (3.70 gallons)
Emissions
Chassis
Frame TypeSteel tubes and machined light alloy plates compound
Rake
Trail
Front SuspensionHydraulic fork
Front Travel120 mm (4.7 inches)
Rear SuspensionSwingarm
Rear Travel128 mm (5.0 inches)
Seat
Seat Height800 mm (31.5 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length1,980 mm (78.0 inches)
Total Width
Ground Clearance150 mm (5.9 inches)
Wheelbase1,368 mm (53.9 inches)
Dry Weight135.0 kg (297.6 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre120/70-ZRX17
Rear Tire/Tyre160/60-ZRX17
Front BrakesSingle disc
Front Brake Diameter
Rear BrakesSingle disc
Rear Brake Diameter
Wheels
Comments
CR and S is an abbreviation of Cafe Racers and Superbikes.