These are the known mechanical and performance specifications for your 2010 Beta Ark One AC.
Basic Specs

Engine
Displacement49.00 ccm (2.99 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression
Bore/Stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Valves/Cylinder
FuelingCarburettor. Dell´Orto PHVA 12
Ignition
Exhaust
LubricationWith mechanical pump - mix gasoline-oil 1,5%
CoolingAir
Drivetrain
GearboxAutomatic
Final DriveBelt
ClutchDry automatic centrifugal type
Driveline
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity7.50 litres (1.98 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front SuspensionHydraulic fork with ø32 mm shaft
Front Travel95 mm (3.7 inches)
Rear SuspensionMonoshock with adjustable spring preload
Rear Travel89 mm (3.5 inches)
Seat
Seat Height
Alt. Seat Height
Total Height
Total Length1,740 mm (68.5 inches)
Total Width830 mm (32.7 inches)
Ground Clearance215 mm (8.5 inches)
Wheelbase
Dry Weight88.0 kg (194.0 pounds)
Wet Weight94.0 kg (207.2 pounds)
Wheels & Brakes
Front Tire/Tyre130/60-13
Rear Tire/Tyre130/60-13
Front BrakesSingle disc
Front Brake Diameter190 mm (7.5 inches)
Rear BrakesSingle disc
Rear Brake Diameter190 mm (7.5 inches)
Wheels
Comments
A liquid cooled version called Ark One LC is available.