These are the known mechanical and performance specifications for your 1957 Hercules 313 Starr.
Basic Specs
Engine
Displacement123.00 ccm (7.51 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression
Bore/Stroke57.0 x 58.0 mm (2.2 x 2.3 inches)
Valves/Cylinder
FuelingCarburettor
Ignition
Exhaust
Lubrication
CoolingAir
Performance
Horespower6.50 HP (4.7 kW)
Torque
Top Speed85.0 km/h (52.8 mph)
Chassis
Frame Type
Rake
Trail
Front SuspensionTelescopic
Front Travel
Rear SuspensionRigid
Rear Travel
SeatSpring-mounted seat
Seat Height
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase
Dry Weight90.0 kg (198.4 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre2.75-19
Rear Tire/Tyre2.75-19
Front BrakesExpanding brake (drum brake)
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
Wheels
Comments