Triumph road racer Ernie Lyons persuaded Edward Turner to provide him with a really quick engine for road racing. The engine preparation was carried out by the brilliant Freddie Clarke who held two Brooklands speed records.
He built up a Tiger 100 with a generator top half and installed hot cams and pistons with as high of a compression ratio as fuel of the day would allow.
The result was history. Lyons won the 1946 Manx Grand Prix in apalling weather and later went on to set the fastest time at the famous Shelsley Walsh hillclimb. This bike was the predecessor of the mighty Triumph Grand Prix.
