New Gerrard 1925 350cc Blackburne 2603



New Gerrard  1925    348  cc Blackburne OHV  frame # Z 587  engine # GJ 665

John Adam Porter (1894-1952),  better known as Jock, was the first Scotsman to win the Isle of Man TT motorcycle race  and was a European Grand Prix motorcycle racing champion. 
From 1922 to 1940 he designed and built   “New Garrard”    motorcycles  from his Edinburg based business, Porter’s Motor Mart. 
Porter  made his debut in the Isle of Man in the 1922 Junior race but he had to retire.
In 1923 he won the 250 cc class at an average speed of 51.93 mph (83.57 km/h).
A year later he gained victory in  the first Ultra-Lightweight TT (175cc), at an average speed of 51.21 mph (82.41 km/h).
Porter was also  successful  on the Continental circuits: he  won the Belgian motorcycle Grand Prix at 250cc three times, in 1925, 1926 and 1929 and the same class in the German motorcycle Grand Prix of 1926.
He was 250 cc  European champion for 1925 and 1926. 
Initially his New Gerrard machines were fitted with Barr&Stroud  or Blackburne engines; from 1930 on JAP power sources were utilized.
This sporty model is fitted with  Burman gearbox, BTH magneto and AMAC carburettor. 
Front lamp and bulb horn are Lucas products, generator and taillight have been made by  Powell and Hanmer. 
The machine has been restored some years ago and comes with full history from new.