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 Norton - 500 Old Miracle
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Photo ou archives : F-M. Dumas

Capacity : 500
Model : Old Miracle
Production : 1912 -
Category : (R) Racing


3.5 hp "Old Miracle" -1912

The Wizard of Brooklands

Rider-tuner Daniel O'Donovan debuted on a Norton at Brooklands in August 1913. The next month, he broke four world records. His speeds for the 500cc flying 5 miles (71.54

mph) and standing-start 10 miles (68.08 mph) were also fast enough to beat the 750 records. His mount became known as "Old Miracle."

From Road to Record-Breaking

This machine first appeared in 1912. Jack Emerson, a Norton dealer from Hull, had ridden it the 240 miles to Brooklands from his home. He then set three 500 cc long-distance records (100 miles, 2 hours and 150 miles) in winning the 150 miles BMCRC Senior TT - and then rode home again.

Saved from the Scrap Heap

But in 1913, O'Donovan- the brother-in-law of R. T. Shelley, who had bought a Norton in 1912 - found Emerson's bike in a scrap heap, rebuilt it and tuned the engine. Within two months of his first record session, Norton launched the "Brooklands Special" at the London Show, each one guaranteed to have lapped Brooklands at over 65 mph. In April 1914, O'Donovan and his tntsty Norton once again set new flying mile and kilometer records in both 500 and 750 categories - their speed of 81.05 mph for the flying mile was the first time a 500 had officially exceeded 80 mph - and also broke the 500 and 750 sidecar records. Considering that "Old Miracle" was a side-valve single with iron piston and cylinder, direct belt drive and norear suspension, its reco,rds seem even more remarkable. No wonder O'Donovan was better known by his nickname - "Wizard!"


Engine: 490cc (79x100mm) air-cooled single cylinder four-stroke

Power Rating: 18-20 hp @ 4500 rpm

Valves: side

Fuel System: Binks "Mouse-Trap" carburetor

Transmission: direct-drive by leather belt

Suspension: Druid girder forks (front); rigid (rear)

Brakes: none (front); belt rim (rear)

Wheels: 26x2.5 inch wi re cli ncher (front & rear)

Weight: 201 lb

Maximum Speed: 85 mph

In its remarkable career, "Old Miracle" is known to have set no less that 112 world records, ridden by the equally legendary "Wizard" O'Donovan.

Le fichier Moto Passion réalisé par François-Marie Dumas réunit près de deux mille photos accompagnées d'un historique très complet des machines présentées.
Il sera progressivement mis à jour ici et toute information complémentaire est la bienvenue sur info@moto-collection.org.

Cette documentation unique, qui constitue sans doute l'encyclopédie la plus exhaustive jamais écrite sur l'histoire de la moto, a été réalisée avec l'assistance de nombreux spécialistes dont principalement Didier Ganneau, Christophe Gaime, Mick Woollett, Jean Goyard, Bernard Salvat, Christian Rey, Yves Campion, Helmut Krackowizer, Michael Dregni, Michel Montange, etc. que je remercie ici.

Disponible sur demande :
- Les fiches originales sur papier
- Les photos et archives signées de mon nom en haute définition ou les documents originaux.
Me contacter sur info@moto-collection.org pour les conditions et droits d'utilisation.