This is RE125 from 1948. This was found by Philip Koenen of motorcycleclassics.com on ebay. He took the bike and went for restoration. Below you can see the picture before and after restoration. This bike was best known as
Flying Flea because of its light weight and quick throttle, name was given by British soldiers during world war II. It was a very integral part of their fleet in war field.
1948 RE125 before restoration.
After Restoration
1948 RC125 Engine - Restored
Below we have its full technical specifications:
1948 Royal Enfield RE125
Claimed power: 3.5hp @ 4,500rpm
Top speed: 45mph
Engine: 125cc air-cooled 2-stroke single, 54mm x 55mm bore and stroke, 5.75:1 compression ratio
Weight (wet): 130lb (59kg)
Fuel capacity/MPG: 1.75gal (8ltr)/130mpg
Photo courtesy: Philip Koenen