Velocette 1938 KSS MK II 348 cc 1 cyl OHC 3407



Velocette 1938 KSS MK II 348 cc OHC frame # MS4584 engine # KSS8450

The firm of Veloce Ltd. was formed in 1905 by Johann Goodman. It was a family business that concentrated on sound motorcycle engineering principles. Their first machines were lightweight four strokes; after that a line of top-class 250 cc two strokes was brought out. In 1924/25 Percy Goodman designed the 350 cc overhead camshaft model K, a machine destined to win many TTs and other races, starting with the 1926 Junior TT that was won by Alec Bennett, who finished ten minutes ahead of the second placeman.
The model KSS (K for overhead camshaft, SS for Super Sports) first appeared in 1925. It had a power output of about 19 hp at 5,800 rpm. From the KSS the successful KTT was developed, this was the first over-the-counter production racer to become available to the general public. In 1933 the KSS got a four speed gearbox and in 1935 the KSS was completely redesigned. The MK II version featured many improvements including a new aluminium-alloy cylinder head with enclosed valve-gear, together with the cradle frame and heavyweight Webb forks of the new MSS. The production of this “Mark II” was continued until 1948. New for the 1938 Velocette range was that all models were fully equipped for the road, so electric lighting, illuminated speedometer and horn were no longer seen as extras. The KSS remains one of the most sought-after models by collectors who appreciate a really good British motorcycle with an impeccable pedigree.


This KSS was first registered on April 4, 1938. She comes with Smiths 85 mph speedo, Miller electrics and BTH magneto. A practical prop stand is a standard fitment. In the restoration process some years ago the engine was completely rebuilt by Fox Craft in Stockbridge, UK, while Dave Lindsley took care of magneto and dynamo. A sensible feature is the switch/valve that is fitted in the oil supply pipe from oil tank to engine to prevent wet sumping; the engine cannot be started unless switched on.