Grace's Guide To British Industrial History

Registered UK Charity (No. 115342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 162,259 pages of information and 244,500 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Lea-Francis: Motorcycles

From Graces Guide
1913. 3.25 h.p. Exhibit at the National Motorcycle Museum.
1913. 3.25 h.p. Exhibit at the National Motorcycle Museum.
1920.

Note: This is a sub-section of Lea-Francis

Lea-Francis motorcycles were produced from 1912 to 1924, in Lower Ford Street, in Coventry.

1912 Lea Francis is perhaps better known as a car manufacturer but in the very early days the firm gained a reputation for the excellence of their bicycles. The prototypes of their motorcycle were produced in time for the 1912 Show. The machine was very well received, and featured all-chain drive in oil baths, multi-plate clutch, quickly detachable rear wheel, 2 speed gearbox with kick-starter, and particularly efficient mud-guarding. used JAP engines

1912 Having already dabbled with cars since about 1904, the firm turned to motorcycles and introduced one model, in August. It had a 3.25hp JAP V-twin engine with chain-driven Bosch magneto, a two-speed gearbox, plate clutch and fully-enclosed chain final-drive. There were also Druid forks and dummy-rim brakes on both wheels. It was offered as a reliable and comfortable tourer.

1913-1917 For a list of the models and prices of motorcycles see the 1917 Red Book

1914 It was joined by a prototype combination using a 6-hp V-twin MAG engine, but the project was dropped due to the outbreak of war. Meanwhile, the other model was uprated to 3.5-hp JAP V-twin engine.

1915-1916 The 3.5hp model continued, with a three-speed gearbox.

1919 After the War, the same model reappeared, but with only two speeds.

1920 That model was joined by one with a 3.5-hp MAG engine.

1921 The 3.5 bh-p model, plus another with 5hp, were given three speeds. Engine capacities were 495cc and 592cc.

1922 Those models ran on, together with a stripped sports version of the 3.5hp.

1923 The 592cc machine was given a Burman gearbox.

1924 The above model was the only one listed that year, after which motorcycle production ceased.

  • Note:
    • It is recorded that some 1,500 machines were made, of which around two dozen remain today.
    • The Lea Francis story was recorded by Ken Hallworth in “OLD BIKE” number 18, summer 1996.
    • There is a Lea-Francis Owners' Website [1]
    • Graham Francis's son, Gordon, would go on to co-found Francis-Barnett.

National Motorcycle Museum exhibits:-

  • 1913 Lea Francis 3.25 hp V-Twin

See Also

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Sources of Information

  • [2] Wikipedia
  • The British Motorcycle Directory - Over 1,100 Marques from 1888 - by Roy Bacon and Ken Hallworth. Pub: The Crowood Press 2004 ISBN 1 86126 674 X
  • [3] Ian Chadwick's motorcycle web site
  • [4] Yesterday's Antique Motorcycles web site
  • [5] CyberMotorCycles web site