HERDTLE & BRUNEAU

150cc Georges Richard -1903

Made like a watch

Compared with the rather crude engines that powered many of the first generation of motorcycles, the engines built by Herdtle & Bruneau were made with the precision of Swiss watches. First seen in 1903, they used the most advanced methods of the day and were renowned for their high standard of finish.

Bang Up to Date

This excellent little engine was sold ready to bolt on to a bicycle frame, and was available with either air or- as here - water cooling. It was right in step with the times, using a mechanically-operated overhead-inlet valve rather than the atmospheric valves used by even the best of its rivals, like De DionBouton. This example has coil-and-trembler ignition. The following year, Herdtle & Bruneau engines would be fitted with a more efficient magneto ignition.

Four-Leafed Clover

The cycle part in the example is apparently the work of the Georges Richard Company,

better known for their automobiles and famous for their four-leafed clover trademark.

They had entered the cycle trade in 1892. The leading-link front suspension was an unusual luxury for such a machine, though such refinements were intended to ease the fears of potential clients about the safety and comfort of motorcycling. Two years later,

Herdtle & Bruneau produced the ultimate in downscaling by introducing motorized rollerskates capable of 40 terrifying mph.

SPECIFICATIONS

Engine: 150cc water-cooled single-cylinder Herdtle & Bruneau four-stroke

Power Rating: 1 hp

Valves: automatic inlet, overhead exhaust

Fuel System: Vaurs carburetor

Transmission: direct belt drive

Suspension: (front) leading link forks; (rear) rigid

Brakes: caliper rim brakes on rear wheel only

Wheels: beaded edge wire

Weight: 44 lb

The Georges Richard motorcycle was relatively expensive for its day, costing 800 francs complete (around $144), of which the engine represented 220 francs and the water-cooling option a further l00francs.