These are the known mechanical and performance specifications for your Wartime (War Dept) Royal Enfield WD/RE.
Basic Specs

Engine
Displacement125cc
Type
Details125cc
Max RPM
Compression
Bore/Stroke
Valves/Cylinder
Fueling
Ignition
Exhaust
Lubrication
Cooling
Chassis
Frame Type
Rake
Trail
Front Suspension
Front Travel
Rear Suspension
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase
Dry Weight
Wet Weight
Wheels & Brakes
Front Tire/Tyre
Rear Tire/Tyre
Front Brakes
Front Brake Diameter
Rear Brakes
Rear Brake Diameter
Wheels
Comments
War Department Model: Known as the "Flying Flea". Two-stroke single based on the DKW RT 125. Used extensively in WW2 to jump with parachutes. Royal Enfield Ensign, A two stroke of 148cc displacement and spring frame rear suspension, telescopic front forks, introduced in 1952/3.