Due to suddenly being reminded of my first ever two wheeled cycle I came across this thread. It was the Sun Super Vitesse which was originally made in a very dark blue with fully chromed forks and I don't think you have one as it was not built with 531 tubing. If my memory is good enough I got mine in 1948. The only Sun cycles at that time built with 531 (I think) were the variations of the Sun Wasps.
Hi Manny,
The Sun Super Vitesse
is a
plain gauge
531 frame with Sun's own cutaway lugs and 70 degree seat angle & 71 degree head angle. In the Sun Catalogue, it sat under the Manx TT, Wasp, and Manxman.
The serial number on this frame 'S' indicates 1951/2, and within a 1951 Sun Catalogue is the Super Vitesse.
In 1951, a Sun Wasp was made from Reynolds
DB 531 tubing and would have cost £30 & 2 shillings; by comparison, the Super Vitesse cost £20 & 11 shillings.
In 1951, the racing style bikes that Sun produced were : Sun Manx TT, Sun Wasp Massed Start, Sun Wasp, Sun Manxman, Sun Super Vitesse, Sun Mist, Sun Club.
Did you race or time trial on your bike ?