These are the known mechanical and performance specifications for your 1958 Norton Manx.
Basic Specs

Engine
Displacement499.00 ccm (30.45 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression
Bore/Stroke
Valves/Cylinder
FuelingCarburettor. NA
Ignition
Exhaust
Lubrication
CoolingAir
Performance
Horespower47.00 HP (34.3 kW)
Torque
Top Speed210.0 km/h (130.5 mph)
Chassis
Frame TypeSteel
Rake
Trail
Front SuspensionTelescopic fork
Front Travel
Rear SuspensionSwingarm
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase1,400 mm (55.1 inches)
Dry Weight140.0 kg (308.6 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre
Rear Tire/Tyre
Front BrakesExpanding brake (drum brake)
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
Wheels
Comments